Date   

Re: Online Ham Technician Class

Dan Pflugrath
 

I can help as needed.

 

73,

Dan KA7GPP

 

 

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Irvina Mizell
Sent: Friday, April 10, 2020 10:09 AM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Online Ham Technician Class

 

Thank you to Howard, Jason, and Rowland for volunteering to be part of this new online class.

 

I've contacted the 20 students who seem eager to learn.  I need more Elmers for this to be successful.  Who wants to join us?

 

Irvina

W7IRM

 


From: snovarc@snovarc.groups.io <snovarc@snovarc.groups.io> on behalf of Irvina Mizell <irvina.mizell@...>
Sent: Sunday, April 5, 2020 9:26 PM
To: snovarc@snovarc.groups.io <snovarc@snovarc.groups.io>
Subject: [SnoVARC] Online Ham Technician Class

 

Hey Folks,

 

At the online SnoVARC meeting last week we discussed the possibility of running a Technician level online class.  We have 20 students who jumped at the chance.

 

Next step is to find folks like you to be mentors.  Then on some scheduled basis, mentors will be available to answer questions, provide insight, and understanding.  Each student will be asked to sign up and use hamtestonline.com. 

 

I need mentors who will help with this.  Please let me know if you are interested, and how you could help.

 

Tests will be administered after the quarantine.

 

Thanks!

 

Irvina

W7IRM

 

 

 


Re: Online Ham Technician Class

Irvina Mizell
 

Thank you to Howard, Jason, and Rowland for volunteering to be part of this new online class.

I've contacted the 20 students who seem eager to learn.  I need more Elmers for this to be successful.  Who wants to join us?

Irvina
W7IRM


From: snovarc@snovarc.groups.io <snovarc@snovarc.groups.io> on behalf of Irvina Mizell <irvina.mizell@...>
Sent: Sunday, April 5, 2020 9:26 PM
To: snovarc@snovarc.groups.io <snovarc@snovarc.groups.io>
Subject: [SnoVARC] Online Ham Technician Class
 
Hey Folks,

At the online SnoVARC meeting last week we discussed the possibility of running a Technician level online class.  We have 20 students who jumped at the chance.

Next step is to find folks like you to be mentors.  Then on some scheduled basis, mentors will be available to answer questions, provide insight, and understanding.  Each student will be asked to sign up and use hamtestonline.com. 

I need mentors who will help with this.  Please let me know if you are interested, and how you could help.

Tests will be administered after the quarantine.

Thanks!

Irvina
W7IRM




Re: Brimar or Mullard 12AU7 Tubes

Shawn / K7ATA
 

I have a matched pair of International 12AU7A/ECC82 in front of me. NOS

--Shawn
--K7ATA

On 4/10/2020 7:51 AM, Shawn / K7ATA via groups.io wrote:
I'll look in my box and see if I have any.

--Shawn
--K7ATA

On 4/9/2020 2:41 PM, Howard E. Mahran / WA1HEM wrote:
Anybody know of a good source?
--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************



Re: Brimar or Mullard 12AU7 Tubes

Dan Pflugrath
 

A little known source in Cashmere.  Check out the video, it is like a radio museum.  Note the old tube checker.

Antique Mall at Cashmere  Link " Antique Mall You Tube "

603 Cotlets Way, Cashmere, WA 9881

They have a large selection of tubes to sell.

 

Dan KA7GPP


Re: Brimar or Mullard 12AU7 Tubes

Shawn / K7ATA
 

I'll look in my box and see if I have any.

--Shawn
--K7ATA

On 4/9/2020 2:41 PM, Howard E. Mahran / WA1HEM wrote:
Anybody know of a good source?
--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************


Re: Brimar or Mullard 12AU7 Tubes

Rowland
 

On Thu, Apr 9, 2020 at 2:41 PM Howard E. Mahran / WA1HEM <wa1hem@...> wrote:
Anybody know of a good source?
--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************

--
Thanks,
Rowland


Re: Brimar or Mullard 12AU7 Tubes

Benjamin Thompson
 

I don't know much about tubes (like if this is what you are looking for)... but Rich Hozjan may have 1 or more.
image.png

On Thu, Apr 9, 2020 at 2:41 PM Howard E. Mahran / WA1HEM <wa1hem@...> wrote:
Anybody know of a good source?
--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************


Brimar or Mullard 12AU7 Tubes

Howard E. Mahran / WA1HEM
 

Anybody know of a good source?
--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************


Re: TRE: [SnoVARC] Rowlands reflector question

Rowland
 


I just joined this FB site that Dan recommended.  Looks like a lot of info available.


Thanks,

Rowland



On Tue, Apr 7, 2020 at 10:21 AM Rowland Brasch <rowland.brasch@...> wrote:
I just joined this FB site that Dan recommended.  Looks like a lot of info available.




Thanks,

Rowland



On Tue, Apr 7, 2020 at 10:20 AM Paul Zoba <pezoba@...> wrote:
Wow, that Ellington video was really impressive. That guy knows his stuff and I learned a lot watching this. It’s long but was worthwhile. He reviews many antennas and speaks from experience. My antenna is a horizontal delta loop 80m long and 40’ high. Steve had some good things to say about it’s performance. Thinking about the EFHW for a 160m... 🤔   Thanks for pointing it out Dan.


On Apr 6, 2020, at 5:28 PM, Dan Pflugrath <dpflugrath@...> wrote:



Here is the build instructions for a resonant EFHW.  For my home QTH antenna with my 100 watt FT-450D I use two cores which ups the efficiency of the transformer.  I used 14 gage wire to wind the transformer.  Otherwise it is the same as in the picture.  Here is the youtube video EFHW by Steve Ellington  that explains how the antenna works and how it is deployed.  Let me know, I can do an Elmer session on this antenna.

 

73,

Dan KA7GPP

 

 

 

 

<image002.jpg>

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Rowland
Sent: Monday, April 6, 2020 12:29 PM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question

 

Where would I get the build directions?

 

 

Thanks,

 

Rowland

 

 

 

On Mon, Apr 6, 2020 at 8:53 AM Dan Pflugrath <dpflugrath@...> wrote:

The easiest way to get on the air is using what many SOTA operators use.  A resonant end fed half wave antenna using a 49:1 transformer.  You can buy on line or easily make your own.  With 131 feet of wire you can work 80 40, 20, 15 and 10 meters without a turner and add 60, 30, 18 and 24 meters with an internal tuner.  You only need one pole or tree and can also have a ground at the transformer for safety.  It cannot cover the full 80 meter band but can easily be adjusted to cover either SSB or CW without affecting the upper bands.  Depending on how you run the antenna wire it will work the same as or better than your common dipole.  It does not need to be run in a straight line.  Depending on the transformer core size you can run the full legal limit for power. 

 

I just made one for our cabin on lake Wenatchee but you are welcome to give it a try.  It is made to handle up to 500 watts.  I have wire and the transformer, you just need coax.

 

Just yesterday on a low elevation SOTA summit I worked coast to coast and VA to CA and MI to TX with 5 watts and 599 reports using my EFHW antenna.  Fun day away from virus carriers.

73,

Dan KA7GPP

 

 

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)
Sent: Monday, April 6, 2020 7:59 AM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question

 

I’d be inclined to put up a 135’ long OCFD if you have the space.  I like the Buckmaster one because it’s pretty bomb-proof but it’s not magically better than all the other variants performance wise.

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

On Apr 6, 2020, at 7:52 AM, Rowland <rowland.brasch@...> wrote:

 

As mentioned there are several options.  The easiest would be an end fed zep. Not the best option but will work.  I have used one on several occasions in the field and had good success. Get one end up in the tree and use it as a sloper.  Next would be an OCFD get the middle in the tree and the two ends spead out and connected so they are ~10' off of the ground.  Paul may have other thoughts on this.

 

 

Thanks,

 

Rowland

 

 

 

On Sun, Apr 5, 2020 at 9:58 PM Jackson Beard <macleanofduart@...> wrote:

Probably 30 feet high max.

 

On Sun, Apr 5, 2020, 21:58 Paul Butzi (W7PFB) <w7pfb@...> wrote:

What bands do you want to cover?  And how high can you easily get an antenna (trees, etc)?

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

On Apr 5, 2020, at 9:48 PM, Jackson Beard <macleanofduart@...> wrote:

 

Focus is on ease, not price.

 

On Sun, Apr 5, 2020, 21:28 Rowland <rowland.brasch@...> wrote:

How much do you want to spend? There are G5RVs, Off center fed dipoles, end feed zeps, certified and so on

 

On Sun, Apr 5, 2020 at 7:43 PM Jackson Beard <macleanofduart@...> wrote:

100 x 270 about .70 acre

 

On Sun, Apr 5, 2020, 19:33 Rowland <rowland.brasch@...> wrote:

How much room do you have (acre)?

 

On Sun, Apr 5, 2020 at 6:07 PM Jackson Beard <macleanofduart@...> wrote:

Nope.

 

On Sun, Apr 5, 2020, 17:59 Rowland <rowland.brasch@...> wrote:

Do you have any neighborhood restrictions

 

On Sun, Apr 5, 2020 at 5:10 PM Jackson Beard <macleanofduart@...> wrote:

Since everyone is offering antenna advice, I have a perfect condition kenwood hf radio I should use this time to get working. 

 

What's the easiest antenna to get put u pl in short order?

 

On Sun, Apr 5, 2020, 17:06 Howard E. Mahran / WA1HEM <wa1hem@...> wrote:

Paul,  This is clearly a  newbie question…but  I’m curious, what happens if the inverted V is an actual V? Where the  ends at 30 Ft and center is at 6ft?

 

Sent from Mail for Windows 10

 

From: Paul Butzi (W7PFB)
Sent: Saturday, April 4, 2020 10:51 AM
To: snovarc@snovarc.groups.io
Subject: [SnoVARC] Rowlands reflector question

 

Rowland asked if adding a reflector below his 80m OCFD would improve NVIS performance on 80m.

 

Error! Filename not specified.

 

A bit more than a 2dBi improvement at 90 degrees.  That’s with the reflector length optimized for gain.  The modeled reflector height was .1m AGL.

 

The downside is that it messes up SWR somewhat.  I didn’t snap a comparison though, there are just too many installation variables to make the results meaningful.

 

 

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

 


--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

 

 

 

 


Re: TRE: [SnoVARC] Rowlands reflector question

Paul Zoba
 

Wow, that Ellington video was really impressive. That guy knows his stuff and I learned a lot watching this. It’s long but was worthwhile. He reviews many antennas and speaks from experience. My antenna is a horizontal delta loop 80m long and 40’ high. Steve had some good things to say about it’s performance. Thinking about the EFHW for a 160m... 🤔   Thanks for pointing it out Dan.


On Apr 6, 2020, at 5:28 PM, Dan Pflugrath <dpflugrath@...> wrote:



Here is the build instructions for a resonant EFHW.  For my home QTH antenna with my 100 watt FT-450D I use two cores which ups the efficiency of the transformer.  I used 14 gage wire to wind the transformer.  Otherwise it is the same as in the picture.  Here is the youtube video EFHW by Steve Ellington  that explains how the antenna works and how it is deployed.  Let me know, I can do an Elmer session on this antenna.

 

73,

Dan KA7GPP

 

 

 

 

<image002.jpg>

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Rowland
Sent: Monday, April 6, 2020 12:29 PM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question

 

Where would I get the build directions?

 

 

Thanks,

 

Rowland

 

 

 

On Mon, Apr 6, 2020 at 8:53 AM Dan Pflugrath <dpflugrath@...> wrote:

The easiest way to get on the air is using what many SOTA operators use.  A resonant end fed half wave antenna using a 49:1 transformer.  You can buy on line or easily make your own.  With 131 feet of wire you can work 80 40, 20, 15 and 10 meters without a turner and add 60, 30, 18 and 24 meters with an internal tuner.  You only need one pole or tree and can also have a ground at the transformer for safety.  It cannot cover the full 80 meter band but can easily be adjusted to cover either SSB or CW without affecting the upper bands.  Depending on how you run the antenna wire it will work the same as or better than your common dipole.  It does not need to be run in a straight line.  Depending on the transformer core size you can run the full legal limit for power. 

 

I just made one for our cabin on lake Wenatchee but you are welcome to give it a try.  It is made to handle up to 500 watts.  I have wire and the transformer, you just need coax.

 

Just yesterday on a low elevation SOTA summit I worked coast to coast and VA to CA and MI to TX with 5 watts and 599 reports using my EFHW antenna.  Fun day away from virus carriers.

73,

Dan KA7GPP

 

 

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)
Sent: Monday, April 6, 2020 7:59 AM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question

 

I’d be inclined to put up a 135’ long OCFD if you have the space.  I like the Buckmaster one because it’s pretty bomb-proof but it’s not magically better than all the other variants performance wise.

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

On Apr 6, 2020, at 7:52 AM, Rowland <rowland.brasch@...> wrote:

 

As mentioned there are several options.  The easiest would be an end fed zep. Not the best option but will work.  I have used one on several occasions in the field and had good success. Get one end up in the tree and use it as a sloper.  Next would be an OCFD get the middle in the tree and the two ends spead out and connected so they are ~10' off of the ground.  Paul may have other thoughts on this.

 

 

Thanks,

 

Rowland

 

 

 

On Sun, Apr 5, 2020 at 9:58 PM Jackson Beard <macleanofduart@...> wrote:

Probably 30 feet high max.

 

On Sun, Apr 5, 2020, 21:58 Paul Butzi (W7PFB) <w7pfb@...> wrote:

What bands do you want to cover?  And how high can you easily get an antenna (trees, etc)?

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

On Apr 5, 2020, at 9:48 PM, Jackson Beard <macleanofduart@...> wrote:

 

Focus is on ease, not price.

 

On Sun, Apr 5, 2020, 21:28 Rowland <rowland.brasch@...> wrote:

How much do you want to spend? There are G5RVs, Off center fed dipoles, end feed zeps, certified and so on

 

On Sun, Apr 5, 2020 at 7:43 PM Jackson Beard <macleanofduart@...> wrote:

100 x 270 about .70 acre

 

On Sun, Apr 5, 2020, 19:33 Rowland <rowland.brasch@...> wrote:

How much room do you have (acre)?

 

On Sun, Apr 5, 2020 at 6:07 PM Jackson Beard <macleanofduart@...> wrote:

Nope.

 

On Sun, Apr 5, 2020, 17:59 Rowland <rowland.brasch@...> wrote:

Do you have any neighborhood restrictions

 

On Sun, Apr 5, 2020 at 5:10 PM Jackson Beard <macleanofduart@...> wrote:

Since everyone is offering antenna advice, I have a perfect condition kenwood hf radio I should use this time to get working. 

 

What's the easiest antenna to get put u pl in short order?

 

On Sun, Apr 5, 2020, 17:06 Howard E. Mahran / WA1HEM <wa1hem@...> wrote:

Paul,  This is clearly a  newbie question…but  I’m curious, what happens if the inverted V is an actual V? Where the  ends at 30 Ft and center is at 6ft?

 

Sent from Mail for Windows 10

 

From: Paul Butzi (W7PFB)
Sent: Saturday, April 4, 2020 10:51 AM
To: snovarc@snovarc.groups.io
Subject: [SnoVARC] Rowlands reflector question

 

Rowland asked if adding a reflector below his 80m OCFD would improve NVIS performance on 80m.

 

Error! Filename not specified.

 

A bit more than a 2dBi improvement at 90 degrees.  That’s with the reflector length optimized for gain.  The modeled reflector height was .1m AGL.

 

The downside is that it messes up SWR somewhat.  I didn’t snap a comparison though, there are just too many installation variables to make the results meaningful.

 

 

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

 


--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

 

 

 

 


Re: Antenna for my Sony reciever

Paul Butzi (W7PFB)
 

I have a little Grundig that is, I think, in the same sort of class as your Sony.  I’ve had good luck with a simple long wire antenna.  A dipole might do better but the first thing you might try is just stringing out a wire.  If that works well, there are a lot of long wire antennas on reels for sale on Amazon and ebay.

-p W7PFB
73, Don’t forget to smile and have fun!

On Apr 6, 2020, at 6:39 PM, Dale Smith <dale_smith@...> wrote:

Hey hiya snovarcians,
 
I have a couple of Sony ICF-SW7600GR radios I keep for emergency receivers. I have an external antenna jack and thought of making a simple dipole.
 
I have ferrite beads on every single switching power supply so I hope noise won’t be a problem.
 
I’d appreciate any thoughts, insights, tricks, tips, and traps anyone might share.
 
Back in the 80’s I got a lot of use out of this little guy and I’d like to per him back to work. Here’s a picture of the little guy.
 
<image001.jpg>
 
Regards,
Dale Smith
425-686-9304
KJ7GHU
 
Reclaim your life and delete FaceBook!
 


Antenna for my Sony reciever

Dale Smith
 

Hey hiya snovarcians,

 

I have a couple of Sony ICF-SW7600GR radios I keep for emergency receivers. I have an external antenna jack and thought of making a simple dipole.

 

I have ferrite beads on every single switching power supply so I hope noise won’t be a problem.

 

I’d appreciate any thoughts, insights, tricks, tips, and traps anyone might share.

 

Back in the 80’s I got a lot of use out of this little guy and I’d like to per him back to work. Here’s a picture of the little guy.

 

 

Regards,

Dale Smith

425-686-9304

LinkedIn: linkedin.com/in/dalegsmith

KJ7GHU

 

Reclaim your life and delete FaceBook!

 


TRE: [SnoVARC] Rowlands reflector question

Dan Pflugrath
 

Here is the build instructions for a resonant EFHW.  For my home QTH antenna with my 100 watt FT-450D I use two cores which ups the efficiency of the transformer.  I used 14 gage wire to wind the transformer.  Otherwise it is the same as in the picture.  Here is the youtube video EFHW by Steve Ellington  that explains how the antenna works and how it is deployed.  Let me know, I can do an Elmer session on this antenna.

 

73,

Dan KA7GPP

 

 

 

 

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Rowland
Sent: Monday, April 6, 2020 12:29 PM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question

 

Where would I get the build directions?

 

 

Thanks,

 

Rowland

 

 

 

On Mon, Apr 6, 2020 at 8:53 AM Dan Pflugrath <dpflugrath@...> wrote:

The easiest way to get on the air is using what many SOTA operators use.  A resonant end fed half wave antenna using a 49:1 transformer.  You can buy on line or easily make your own.  With 131 feet of wire you can work 80 40, 20, 15 and 10 meters without a turner and add 60, 30, 18 and 24 meters with an internal tuner.  You only need one pole or tree and can also have a ground at the transformer for safety.  It cannot cover the full 80 meter band but can easily be adjusted to cover either SSB or CW without affecting the upper bands.  Depending on how you run the antenna wire it will work the same as or better than your common dipole.  It does not need to be run in a straight line.  Depending on the transformer core size you can run the full legal limit for power. 

 

I just made one for our cabin on lake Wenatchee but you are welcome to give it a try.  It is made to handle up to 500 watts.  I have wire and the transformer, you just need coax.

 

Just yesterday on a low elevation SOTA summit I worked coast to coast and VA to CA and MI to TX with 5 watts and 599 reports using my EFHW antenna.  Fun day away from virus carriers.

73,

Dan KA7GPP

 

 

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)
Sent: Monday, April 6, 2020 7:59 AM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question

 

I’d be inclined to put up a 135’ long OCFD if you have the space.  I like the Buckmaster one because it’s pretty bomb-proof but it’s not magically better than all the other variants performance wise.

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

On Apr 6, 2020, at 7:52 AM, Rowland <rowland.brasch@...> wrote:

 

As mentioned there are several options.  The easiest would be an end fed zep. Not the best option but will work.  I have used one on several occasions in the field and had good success. Get one end up in the tree and use it as a sloper.  Next would be an OCFD get the middle in the tree and the two ends spead out and connected so they are ~10' off of the ground.  Paul may have other thoughts on this.

 

 

Thanks,

 

Rowland

 

 

 

On Sun, Apr 5, 2020 at 9:58 PM Jackson Beard <macleanofduart@...> wrote:

Probably 30 feet high max.

 

On Sun, Apr 5, 2020, 21:58 Paul Butzi (W7PFB) <w7pfb@...> wrote:

What bands do you want to cover?  And how high can you easily get an antenna (trees, etc)?

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

On Apr 5, 2020, at 9:48 PM, Jackson Beard <macleanofduart@...> wrote:

 

Focus is on ease, not price.

 

On Sun, Apr 5, 2020, 21:28 Rowland <rowland.brasch@...> wrote:

How much do you want to spend? There are G5RVs, Off center fed dipoles, end feed zeps, certified and so on

 

On Sun, Apr 5, 2020 at 7:43 PM Jackson Beard <macleanofduart@...> wrote:

100 x 270 about .70 acre

 

On Sun, Apr 5, 2020, 19:33 Rowland <rowland.brasch@...> wrote:

How much room do you have (acre)?

 

On Sun, Apr 5, 2020 at 6:07 PM Jackson Beard <macleanofduart@...> wrote:

Nope.

 

On Sun, Apr 5, 2020, 17:59 Rowland <rowland.brasch@...> wrote:

Do you have any neighborhood restrictions

 

On Sun, Apr 5, 2020 at 5:10 PM Jackson Beard <macleanofduart@...> wrote:

Since everyone is offering antenna advice, I have a perfect condition kenwood hf radio I should use this time to get working. 

 

What's the easiest antenna to get put u pl in short order?

 

On Sun, Apr 5, 2020, 17:06 Howard E. Mahran / WA1HEM <wa1hem@...> wrote:

Paul,  This is clearly a  newbie question…but  I’m curious, what happens if the inverted V is an actual V? Where the  ends at 30 Ft and center is at 6ft?

 

Sent from Mail for Windows 10

 

From: Paul Butzi (W7PFB)
Sent: Saturday, April 4, 2020 10:51 AM
To: snovarc@snovarc.groups.io
Subject: [SnoVARC] Rowlands reflector question

 

Rowland asked if adding a reflector below his 80m OCFD would improve NVIS performance on 80m.

 

Error! Filename not specified.

 

A bit more than a 2dBi improvement at 90 degrees.  That’s with the reflector length optimized for gain.  The modeled reflector height was .1m AGL.

 

The downside is that it messes up SWR somewhat.  I didn’t snap a comparison though, there are just too many installation variables to make the results meaningful.

 

 

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

 


--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

 

 

 

 


Re: Rowlands reflector question

Jackson Beard
 

I just ordered the commercial version.  I'll post results as soon as I get them.


On Mon, Apr 6, 2020, 12:58 Dan Pflugrath <dpflugrath@...> wrote:
There is also a Facebook page "End Fed Half Wave Antenna".  Once you join look in the files section.   The one page direction can be viewed in the link to the YouTube video.   I can send the file once I get home today from the cabin where some of my family are hanging out from the virus. Dan
---------- Original Message ----------
From: "Rowland" <rowland.brasch@...>
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question
Date: Mon, 6 Apr 2020 12:29:29 -0700

Where would I get the build directions?Thanks,Rowland
On Mon, Apr 6, 2020 at 8:53 AM Dan Pflugrath <dpflugrath@...> wrote:The easiest way to get on the air is using what many SOTA operators use.  A resonant end fed half wave antenna using a 49:1 transformer.  You can buy on line or easily make your own.  With 131 feet of wire you can work 80 40, 20, 15 and 10 meters without a turner and add 60, 30, 18 and 24 meters with an internal tuner.  You only need one pole or tree and can also have a ground at the transformer for safety.  It cannot cover the full 80 meter band but can easily be adjusted to cover either SSB or CW without affecting the upper bands.  Depending on how you run the antenna wire it will work the same as or better than your common dipole.  It does not need to be run in a straight line.  Depending on the transformer core size you can run the full legal limit for power. 
 
I just made one for our cabin on lake Wenatchee but you are welcome to give it a try.  It is made to handle up to 500 watts.  I have wire and the transformer, you just need coax.
 
Just yesterday on a low elevation SOTA summit I worked coast to coast and VA to CA and MI to TX with 5 watts and 599 reports using my EFHW antenna.  Fun day away from virus carriers.
73,
Dan KA7GPP
 
 
 
From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)Sent: Monday, April 6, 2020 7:59 AMTo: snovarc@...: Re: [SnoVARC] Rowlands reflector question
 
I’d be inclined to put up a 135’ long OCFD if you have the space.  I like the Buckmaster one because it’s pretty bomb-proof but it’s not magically better than all the other variants performance wise.
 
-p W7PFB73, Don’t forget to smile and have fun!

On Apr 6, 2020, at 7:52 AM, Rowland <rowland.brasch@...> wrote:
 
As mentioned there are several options.  The easiest would be an end fed zep. Not the best option but will work.  I have used one on several occasions in the field and had good success. Get one end up in the tree and use it as a sloper.  Next would be an OCFD get the middle in the tree and the two ends spead out and connected so they are ~10&#39; off of the ground.  Paul may have other thoughts on this.
 
 
Thanks,
 
Rowland
 
 
 
On Sun, Apr 5, 2020 at 9:58 PM Jackson Beard <macleanofduart@...> wrote:
Probably 30 feet high max.
 
On Sun, Apr 5, 2020, 21:58 Paul Butzi (W7PFB) <w7pfb@...> wrote:
What bands do you want to cover?  And how high can you easily get an antenna (trees, etc)?
 
-p W7PFB73, Don’t forget to smile and have fun!

On Apr 5, 2020, at 9:48 PM, Jackson Beard <macleanofduart@...> wrote:
 
Focus is on ease, not price.
 
On Sun, Apr 5, 2020, 21:28 Rowland <rowland.brasch@...> wrote:
How much do you want to spend? There are G5RVs, Off center fed dipoles, end feed zeps, certified and so on
 
On Sun, Apr 5, 2020 at 7:43 PM Jackson Beard <macleanofduart@...> wrote:
100 x 270 about .70 acre
 
On Sun, Apr 5, 2020, 19:33 Rowland <rowland.brasch@...> wrote:
How much room do you have (acre)?
 
On Sun, Apr 5, 2020 at 6:07 PM Jackson Beard <macleanofduart@...> wrote:
Nope.
 
On Sun, Apr 5, 2020, 17:59 Rowland <rowland.brasch@...> wrote:
Do you have any neighborhood restrictions
 
On Sun, Apr 5, 2020 at 5:10 PM Jackson Beard <macleanofduart@...> wrote:
Since everyone is offering antenna advice, I have a perfect condition kenwood hf radio I should use this time to get working. 
 
What&#39;s the easiest antenna to get put u pl in short order?
 
On Sun, Apr 5, 2020, 17:06 Howard E. Mahran / WA1HEM <wa1hem@...> wrote:
Paul,  This is clearly a  newbie question…but  I’m curious, what happens if the inverted V is an actual V? Where the  ends at 30 Ft and center is at 6ft?
 
Sent from Mail for Windows 10
 
From: Paul Butzi (W7PFB)Sent: Saturday, April 4, 2020 10:51 AMTo: snovarc@...: [SnoVARC] Rowlands reflector question
 
Rowland asked if adding a reflector below his 80m OCFD would improve NVIS performance on 80m.
 
Error! Filename not specified.
 
A bit more than a 2dBi improvement at 90 degrees.  That’s with the reflector length optimized for gain.  The modeled reflector height was .1m AGL.
 
The downside is that it messes up SWR somewhat.  I didn’t snap a comparison though, there are just too many installation variables to make the results meaningful.
 
 
 
-p W7PFB73, Don’t forget to smile and have fun!
 
 
-- *************************Howard E. MahranWA1HEM(425) 864 - 5104*************************
 
 
 
 
--
Thanks,Rowland
 
 
 
 
--
Thanks,Rowland
 
 
 
 
--
Thanks,Rowland
 
 
 
 
 
 
 
 











Re: Rowlands reflector question

Dan Pflugrath
 

There is also a Facebook page "End Fed Half Wave Antenna". Once you join look in the files section. The one page direction can be viewed in the link to the YouTube video. I can send the file once I get home today from the cabin where some of my family are hanging out from the virus. Dan

---------- Original Message ----------
From: "Rowland" <@Rowland>
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question
Date: Mon, 6 Apr 2020 12:29:29 -0700

Where would I get the build directions?Thanks,Rowland
On Mon, Apr 6, 2020 at 8:53 AM Dan Pflugrath <dpflugrath@...> wrote:The easiest way to get on the air is using what many SOTA operators use.  A resonant end fed half wave antenna using a 49:1 transformer.  You can buy on line or easily make your own.  With 131 feet of wire you can work 80 40, 20, 15 and 10 meters without a turner and add 60, 30, 18 and 24 meters with an internal tuner.  You only need one pole or tree and can also have a ground at the transformer for safety.  It cannot cover the full 80 meter band but can easily be adjusted to cover either SSB or CW without affecting the upper bands.  Depending on how you run the antenna wire it will work the same as or better than your common dipole.  It does not need to be run in a straight line.  Depending on the transformer core size you can run the full legal limit for power. 
 
I just made one for our cabin on lake Wenatchee but you are welcome to give it a try.  It is made to handle up to 500 watts.  I have wire and the transformer, you just need coax.
 
Just yesterday on a low elevation SOTA summit I worked coast to coast and VA to CA and MI to TX with 5 watts and 599 reports using my EFHW antenna.  Fun day away from virus carriers.
73,
Dan KA7GPP
 
 
 
From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)Sent: Monday, April 6, 2020 7:59 AMTo: snovarc@...: Re: [SnoVARC] Rowlands reflector question
 
I’d be inclined to put up a 135’ long OCFD if you have the space.  I like the Buckmaster one because it’s pretty bomb-proof but it’s not magically better than all the other variants performance wise.
 
-p W7PFB73, Don’t forget to smile and have fun!

On Apr 6, 2020, at 7:52 AM, Rowland <@Rowland> wrote:
 
As mentioned there are several options.  The easiest would be an end fed zep. Not the best option but will work.  I have used one on several occasions in the field and had good success. Get one end up in the tree and use it as a sloper.  Next would be an OCFD get the middle in the tree and the two ends spead out and connected so they are ~10&#39; off of the ground.  Paul may have other thoughts on this.
 
 
Thanks,
 
Rowland
 
 
 
On Sun, Apr 5, 2020 at 9:58 PM Jackson Beard <macleanofduart@...> wrote:
Probably 30 feet high max.
 
On Sun, Apr 5, 2020, 21:58 Paul Butzi (W7PFB) <w7pfb@...> wrote:
What bands do you want to cover?  And how high can you easily get an antenna (trees, etc)?
 
-p W7PFB73, Don’t forget to smile and have fun!

On Apr 5, 2020, at 9:48 PM, Jackson Beard <macleanofduart@...> wrote:
 
Focus is on ease, not price.
 
On Sun, Apr 5, 2020, 21:28 Rowland <@Rowland> wrote:
How much do you want to spend? There are G5RVs, Off center fed dipoles, end feed zeps, certified and so on
 
On Sun, Apr 5, 2020 at 7:43 PM Jackson Beard <macleanofduart@...> wrote:
100 x 270 about .70 acre
 
On Sun, Apr 5, 2020, 19:33 Rowland <@Rowland> wrote:
How much room do you have (acre)?
 
On Sun, Apr 5, 2020 at 6:07 PM Jackson Beard <macleanofduart@...> wrote:
Nope.
 
On Sun, Apr 5, 2020, 17:59 Rowland <@Rowland> wrote:
Do you have any neighborhood restrictions
 
On Sun, Apr 5, 2020 at 5:10 PM Jackson Beard <macleanofduart@...> wrote:
Since everyone is offering antenna advice, I have a perfect condition kenwood hf radio I should use this time to get working. 
 
What&#39;s the easiest antenna to get put u pl in short order?
 
On Sun, Apr 5, 2020, 17:06 Howard E. Mahran / WA1HEM <wa1hem@...> wrote:
Paul,  This is clearly a  newbie question…but  I’m curious, what happens if the inverted V is an actual V? Where the  ends at 30 Ft and center is at 6ft?
 
Sent from Mail for Windows 10
 
From: Paul Butzi (W7PFB)Sent: Saturday, April 4, 2020 10:51 AMTo: snovarc@...: [SnoVARC] Rowlands reflector question
 
Rowland asked if adding a reflector below his 80m OCFD would improve NVIS performance on 80m.
 
Error! Filename not specified.
 
A bit more than a 2dBi improvement at 90 degrees.  That’s with the reflector length optimized for gain.  The modeled reflector height was .1m AGL.
 
The downside is that it messes up SWR somewhat.  I didn’t snap a comparison though, there are just too many installation variables to make the results meaningful.
 
 
 
-p W7PFB73, Don’t forget to smile and have fun!
 
 
-- *************************Howard E. MahranWA1HEM(425) 864 - 5104*************************
 
 
 
 
--
Thanks,Rowland
 
 
 
 
--
Thanks,Rowland
 
 
 
 
--
Thanks,Rowland


Re: Rowlands reflector question

Dan Pflugrath
 

For more details look up on YouTube end fed half wave antenna by Steve Ellington. Here is a link to commercially available version https://myantennas.com/wp/product/efhw-8010/ a great starter antenna for new hams and also nice for us living in HOAs for stealth antennas. 73 Dan KA7GPP--------- Original Message ----------
From: "Paul Butzi (W7PFB)" <w7pfb@...>
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question
Date: Mon, 6 Apr 2020 09:30:43 -0700

That sounds so good I changed my mind.  I’d put up what Dan suggests.-p W7PFB73, Don’t forget to smile and have fun!
On Apr 6, 2020, at 8:53 AM, Dan Pflugrath <dpflugrath@...> wrote:The easiest way to get on the air is using what many SOTA operators use.  A resonant end fed half wave antenna using a 49:1 transformer.  You can buy on line or easily make your own.  With 131 feet of wire you can work 80 40, 20, 15 and 10 meters without a turner and add 60, 30, 18 and 24 meters with an internal tuner.  You only need one pole or tree and can also have a ground at the transformer for safety.  It cannot cover the full 80 meter band but can easily be adjusted to cover either SSB or CW without affecting the upper bands.  Depending on how you run the antenna wire it will work the same as or better than your common dipole.  It does not need to be run in a straight line.  Depending on the transformer core size you can run the full legal limit for power.   I just made one for our cabin on lake Wenatchee but you are welcome to give it a try.  It is made to handle up to 500 watts.  I have wire and the transformer, you just need coax. Just yesterday on a low elevation SOTA summit I worked coast to coast and VA to CA and MI to TX with 5 watts and 599 reports using my EFHW antenna.  Fun day away from virus carriers.73,Dan KA7GPP   From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)Sent: Monday, April 6, 2020 7:59 AMTo: snovarc@...: Re: [SnoVARC] Rowlands reflector question I’d be inclined to put up a 135’ long OCFD if you have the space.  I like the Buckmaster one because it’s pretty bomb-proof but it’s not magically better than all the other variants performance wise. -p W7PFB73, Don’t forget to smile and have fun! On Apr 6, 2020, at 7:52 AM, Rowland <@Rowland> wrote: As mentioned there are several options.  The easiest would be an end fed zep. Not the best option but will work.  I have used one on several occasions in the field and had good success. Get one end up in the tree and use it as a sloper.  Next would be an OCFD get the middle in the tree and the two ends spead out and connected so they are ~10&#39; off of the ground.  Paul may have other thoughts on this.  Thanks, Rowland   On Sun, Apr 5, 2020 at 9:58 PM Jackson Beard <macleanofduart@...> wrote:Probably 30 feet high max. On Sun, Apr 5, 2020, 21:58 Paul Butzi (W7PFB) <w7pfb@...> wrote:What bands do you want to cover?  And how high can you easily get an antenna (trees, etc)? -p W7PFB73, Don’t forget to smile and have fun! On Apr 5, 2020, at 9:48 PM, Jackson Beard <macleanofduart@...> wrote: Focus is on ease, not price. On Sun, Apr 5, 2020, 21:28 Rowland <@Rowland> wrote:How much do you want to spend? There are G5RVs, Off center fed dipoles, end feed zeps, certified and so on On Sun, Apr 5, 2020 at 7:43 PM Jackson Beard <macleanofduart@...> wrote:100 x 270 about .70 acre On Sun, Apr 5, 2020, 19:33 Rowland <@Rowland> wrote:How much room do you have (acre)? On Sun, Apr 5, 2020 at 6:07 PM Jackson Beard <macleanofduart@...> wrote:Nope. On Sun, Apr 5, 2020, 17:59 Rowland <@Rowland> wrote:Do you have any neighborhood restrictions On Sun, Apr 5, 2020 at 5:10 PM Jackson Beard <macleanofduart@...> wrote:Since everyone is offering antenna advice, I have a perfect condition kenwood hf radio I should use this time to get working.  What&#39;s the easiest antenna to get put u pl in short order? On Sun, Apr 5, 2020, 17:06 Howard E. Mahran / WA1HEM <wa1hem@...> wrote:Paul,  This is clearly a  newbie question…but  I’m curious, what happens if the inverted V is an actual V? Where the  ends at 30 Ft and center is at 6ft? Sent from Mail for Windows 10 From: Paul Butzi (W7PFB)Sent: Saturday, April 4, 2020 10:51 AMTo: snovarc@...: [SnoVARC] Rowlands reflector question Rowland asked if adding a reflector below his 80m OCFD would improve NVIS performance on 80m. Error! Filename not specified. A bit more than a 2dBi improvement at 90 degrees.  That’s with the reflector length optimized for gain.  The modeled reflector height was .1m AGL. The downside is that it messes up SWR somewhat.  I didn’t snap a comparison though, there are just too many installation variables to make the results meaningful.   -p W7PFB73, Don’t forget to smile and have fun!   -- *************************Howard E. MahranWA1HEM(425) 864 - 5104*************************     -- Thanks,Rowland    -- Thanks,Rowland    -- Thanks,Rowland


Re: Rowlands reflector question

Jackson Beard
 

I like this idea, Dan. Do you have a commercial version that you favor?


On Mon, Apr 6, 2020, 08:53 Dan Pflugrath <dpflugrath@...> wrote:

The easiest way to get on the air is using what many SOTA operators use.  A resonant end fed half wave antenna using a 49:1 transformer.  You can buy on line or easily make your own.  With 131 feet of wire you can work 80 40, 20, 15 and 10 meters without a turner and add 60, 30, 18 and 24 meters with an internal tuner.  You only need one pole or tree and can also have a ground at the transformer for safety.  It cannot cover the full 80 meter band but can easily be adjusted to cover either SSB or CW without affecting the upper bands.  Depending on how you run the antenna wire it will work the same as or better than your common dipole.  It does not need to be run in a straight line.  Depending on the transformer core size you can run the full legal limit for power. 

 

I just made one for our cabin on lake Wenatchee but you are welcome to give it a try.  It is made to handle up to 500 watts.  I have wire and the transformer, you just need coax.

 

Just yesterday on a low elevation SOTA summit I worked coast to coast and VA to CA and MI to TX with 5 watts and 599 reports using my EFHW antenna.  Fun day away from virus carriers.

73,

Dan KA7GPP

 

 

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)
Sent: Monday, April 6, 2020 7:59 AM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question

 

I’d be inclined to put up a 135’ long OCFD if you have the space.  I like the Buckmaster one because it’s pretty bomb-proof but it’s not magically better than all the other variants performance wise.

 

-p W7PFB
73, Don’t forget to smile and have fun!



On Apr 6, 2020, at 7:52 AM, Rowland <rowland.brasch@...> wrote:

 

As mentioned there are several options.  The easiest would be an end fed zep. Not the best option but will work.  I have used one on several occasions in the field and had good success. Get one end up in the tree and use it as a sloper.  Next would be an OCFD get the middle in the tree and the two ends spead out and connected so they are ~10' off of the ground.  Paul may have other thoughts on this.

 

 

Thanks,

 

Rowland

 

 

 

On Sun, Apr 5, 2020 at 9:58 PM Jackson Beard <macleanofduart@...> wrote:

Probably 30 feet high max.

 

On Sun, Apr 5, 2020, 21:58 Paul Butzi (W7PFB) <w7pfb@...> wrote:

What bands do you want to cover?  And how high can you easily get an antenna (trees, etc)?

 

-p W7PFB
73, Don’t forget to smile and have fun!



On Apr 5, 2020, at 9:48 PM, Jackson Beard <macleanofduart@...> wrote:

 

Focus is on ease, not price.

 

On Sun, Apr 5, 2020, 21:28 Rowland <rowland.brasch@...> wrote:

How much do you want to spend? There are G5RVs, Off center fed dipoles, end feed zeps, certified and so on

 

On Sun, Apr 5, 2020 at 7:43 PM Jackson Beard <macleanofduart@...> wrote:

100 x 270 about .70 acre

 

On Sun, Apr 5, 2020, 19:33 Rowland <rowland.brasch@...> wrote:

How much room do you have (acre)?

 

On Sun, Apr 5, 2020 at 6:07 PM Jackson Beard <macleanofduart@...> wrote:

Nope.

 

On Sun, Apr 5, 2020, 17:59 Rowland <rowland.brasch@...> wrote:

Do you have any neighborhood restrictions

 

On Sun, Apr 5, 2020 at 5:10 PM Jackson Beard <macleanofduart@...> wrote:

Since everyone is offering antenna advice, I have a perfect condition kenwood hf radio I should use this time to get working. 

 

What's the easiest antenna to get put u pl in short order?

 

On Sun, Apr 5, 2020, 17:06 Howard E. Mahran / WA1HEM <wa1hem@...> wrote:

Paul,  This is clearly a  newbie question…but  I’m curious, what happens if the inverted V is an actual V? Where the  ends at 30 Ft and center is at 6ft?

 

Sent from Mail for Windows 10

 

From: Paul Butzi (W7PFB)
Sent: Saturday, April 4, 2020 10:51 AM
To: snovarc@snovarc.groups.io
Subject: [SnoVARC] Rowlands reflector question

 

Rowland asked if adding a reflector below his 80m OCFD would improve NVIS performance on 80m.

 

Error! Filename not specified.

 

A bit more than a 2dBi improvement at 90 degrees.  That’s with the reflector length optimized for gain.  The modeled reflector height was .1m AGL.

 

The downside is that it messes up SWR somewhat.  I didn’t snap a comparison though, there are just too many installation variables to make the results meaningful.

 

 

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

 


--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

 

 

 

 


Re: Rowlands reflector question

Rowland
 

Where would I get the build directions?


Thanks,

Rowland



On Mon, Apr 6, 2020 at 8:53 AM Dan Pflugrath <dpflugrath@...> wrote:

The easiest way to get on the air is using what many SOTA operators use.  A resonant end fed half wave antenna using a 49:1 transformer.  You can buy on line or easily make your own.  With 131 feet of wire you can work 80 40, 20, 15 and 10 meters without a turner and add 60, 30, 18 and 24 meters with an internal tuner.  You only need one pole or tree and can also have a ground at the transformer for safety.  It cannot cover the full 80 meter band but can easily be adjusted to cover either SSB or CW without affecting the upper bands.  Depending on how you run the antenna wire it will work the same as or better than your common dipole.  It does not need to be run in a straight line.  Depending on the transformer core size you can run the full legal limit for power. 

 

I just made one for our cabin on lake Wenatchee but you are welcome to give it a try.  It is made to handle up to 500 watts.  I have wire and the transformer, you just need coax.

 

Just yesterday on a low elevation SOTA summit I worked coast to coast and VA to CA and MI to TX with 5 watts and 599 reports using my EFHW antenna.  Fun day away from virus carriers.

73,

Dan KA7GPP

 

 

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)
Sent: Monday, April 6, 2020 7:59 AM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question

 

I’d be inclined to put up a 135’ long OCFD if you have the space.  I like the Buckmaster one because it’s pretty bomb-proof but it’s not magically better than all the other variants performance wise.

 

-p W7PFB
73, Don’t forget to smile and have fun!



On Apr 6, 2020, at 7:52 AM, Rowland <rowland.brasch@...> wrote:

 

As mentioned there are several options.  The easiest would be an end fed zep. Not the best option but will work.  I have used one on several occasions in the field and had good success. Get one end up in the tree and use it as a sloper.  Next would be an OCFD get the middle in the tree and the two ends spead out and connected so they are ~10' off of the ground.  Paul may have other thoughts on this.

 

 

Thanks,

 

Rowland

 

 

 

On Sun, Apr 5, 2020 at 9:58 PM Jackson Beard <macleanofduart@...> wrote:

Probably 30 feet high max.

 

On Sun, Apr 5, 2020, 21:58 Paul Butzi (W7PFB) <w7pfb@...> wrote:

What bands do you want to cover?  And how high can you easily get an antenna (trees, etc)?

 

-p W7PFB
73, Don’t forget to smile and have fun!



On Apr 5, 2020, at 9:48 PM, Jackson Beard <macleanofduart@...> wrote:

 

Focus is on ease, not price.

 

On Sun, Apr 5, 2020, 21:28 Rowland <rowland.brasch@...> wrote:

How much do you want to spend? There are G5RVs, Off center fed dipoles, end feed zeps, certified and so on

 

On Sun, Apr 5, 2020 at 7:43 PM Jackson Beard <macleanofduart@...> wrote:

100 x 270 about .70 acre

 

On Sun, Apr 5, 2020, 19:33 Rowland <rowland.brasch@...> wrote:

How much room do you have (acre)?

 

On Sun, Apr 5, 2020 at 6:07 PM Jackson Beard <macleanofduart@...> wrote:

Nope.

 

On Sun, Apr 5, 2020, 17:59 Rowland <rowland.brasch@...> wrote:

Do you have any neighborhood restrictions

 

On Sun, Apr 5, 2020 at 5:10 PM Jackson Beard <macleanofduart@...> wrote:

Since everyone is offering antenna advice, I have a perfect condition kenwood hf radio I should use this time to get working. 

 

What's the easiest antenna to get put u pl in short order?

 

On Sun, Apr 5, 2020, 17:06 Howard E. Mahran / WA1HEM <wa1hem@...> wrote:

Paul,  This is clearly a  newbie question…but  I’m curious, what happens if the inverted V is an actual V? Where the  ends at 30 Ft and center is at 6ft?

 

Sent from Mail for Windows 10

 

From: Paul Butzi (W7PFB)
Sent: Saturday, April 4, 2020 10:51 AM
To: snovarc@snovarc.groups.io
Subject: [SnoVARC] Rowlands reflector question

 

Rowland asked if adding a reflector below his 80m OCFD would improve NVIS performance on 80m.

 

Error! Filename not specified.

 

A bit more than a 2dBi improvement at 90 degrees.  That’s with the reflector length optimized for gain.  The modeled reflector height was .1m AGL.

 

The downside is that it messes up SWR somewhat.  I didn’t snap a comparison though, there are just too many installation variables to make the results meaningful.

 

 

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

 


--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

 

 

 

 


Re: Rowlands reflector question

Paul Butzi (W7PFB)
 

That sounds so good I changed my mind.  I’d put up what Dan suggests.

-p W7PFB
73, Don’t forget to smile and have fun!

On Apr 6, 2020, at 8:53 AM, Dan Pflugrath <dpflugrath@...> wrote:

The easiest way to get on the air is using what many SOTA operators use.  A resonant end fed half wave antenna using a 49:1 transformer.  You can buy on line or easily make your own.  With 131 feet of wire you can work 80 40, 20, 15 and 10 meters without a turner and add 60, 30, 18 and 24 meters with an internal tuner.  You only need one pole or tree and can also have a ground at the transformer for safety.  It cannot cover the full 80 meter band but can easily be adjusted to cover either SSB or CW without affecting the upper bands.  Depending on how you run the antenna wire it will work the same as or better than your common dipole.  It does not need to be run in a straight line.  Depending on the transformer core size you can run the full legal limit for power.  
 
I just made one for our cabin on lake Wenatchee but you are welcome to give it a try.  It is made to handle up to 500 watts.  I have wire and the transformer, you just need coax.
 
Just yesterday on a low elevation SOTA summit I worked coast to coast and VA to CA and MI to TX with 5 watts and 599 reports using my EFHW antenna.  Fun day away from virus carriers.
73,
Dan KA7GPP
 
 
 
From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)
Sent: Monday, April 6, 2020 7:59 AM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question
 
I’d be inclined to put up a 135’ long OCFD if you have the space.  I like the Buckmaster one because it’s pretty bomb-proof but it’s not magically better than all the other variants performance wise.
 
-p W7PFB
73, Don’t forget to smile and have fun! 


On Apr 6, 2020, at 7:52 AM, Rowland <rowland.brasch@...> wrote:
 
As mentioned there are several options.  The easiest would be an end fed zep. Not the best option but will work.  I have used one on several occasions in the field and had good success. Get one end up in the tree and use it as a sloper.  Next would be an OCFD get the middle in the tree and the two ends spead out and connected so they are ~10' off of the ground.  Paul may have other thoughts on this.
 
 
Thanks,
 
Rowland
 
 
 
On Sun, Apr 5, 2020 at 9:58 PM Jackson Beard <macleanofduart@...> wrote:
Probably 30 feet high max.
 
On Sun, Apr 5, 2020, 21:58 Paul Butzi (W7PFB) <w7pfb@...> wrote:
What bands do you want to cover?  And how high can you easily get an antenna (trees, etc)?
 
-p W7PFB
73, Don’t forget to smile and have fun! 


On Apr 5, 2020, at 9:48 PM, Jackson Beard <macleanofduart@...> wrote:
 
Focus is on ease, not price.
 
On Sun, Apr 5, 2020, 21:28 Rowland <rowland.brasch@...> wrote:
How much do you want to spend? There are G5RVs, Off center fed dipoles, end feed zeps, certified and so on
 
On Sun, Apr 5, 2020 at 7:43 PM Jackson Beard <macleanofduart@...> wrote:
100 x 270 about .70 acre
 
On Sun, Apr 5, 2020, 19:33 Rowland <rowland.brasch@...> wrote:
How much room do you have (acre)?
 
On Sun, Apr 5, 2020 at 6:07 PM Jackson Beard <macleanofduart@...> wrote:
Nope.
 
On Sun, Apr 5, 2020, 17:59 Rowland <rowland.brasch@...> wrote:
Do you have any neighborhood restrictions
 
On Sun, Apr 5, 2020 at 5:10 PM Jackson Beard <macleanofduart@...> wrote:
Since everyone is offering antenna advice, I have a perfect condition kenwood hf radio I should use this time to get working. 
 
What's the easiest antenna to get put u pl in short order?
 
On Sun, Apr 5, 2020, 17:06 Howard E. Mahran / WA1HEM <wa1hem@...> wrote:
Paul,  This is clearly a  newbie question…but  I’m curious, what happens if the inverted V is an actual V? Where the  ends at 30 Ft and center is at 6ft?
 
Sent from Mail for Windows 10
 
From: Paul Butzi (W7PFB)
Sent: Saturday, April 4, 2020 10:51 AM
To: snovarc@snovarc.groups.io
Subject: [SnoVARC] Rowlands reflector question
 
Rowland asked if adding a reflector below his 80m OCFD would improve NVIS performance on 80m.
 
Error! Filename not specified.
 
A bit more than a 2dBi improvement at 90 degrees.  That’s with the reflector length optimized for gain.  The modeled reflector height was .1m AGL.
 
The downside is that it messes up SWR somewhat.  I didn’t snap a comparison though, there are just too many installation variables to make the results meaningful.
 
 
 
-p W7PFB
73, Don’t forget to smile and have fun! 
 
 

-- 
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
************************* 
 
 
 
 
-- 
Thanks,
Rowland
 
 
 
 
-- 
Thanks,
Rowland
 
 
 
 
-- 
Thanks,
Rowland
 
 
 
 
 
 
 
 



Re: Rowlands reflector question

Dan Pflugrath
 

The easiest way to get on the air is using what many SOTA operators use.  A resonant end fed half wave antenna using a 49:1 transformer.  You can buy on line or easily make your own.  With 131 feet of wire you can work 80 40, 20, 15 and 10 meters without a turner and add 60, 30, 18 and 24 meters with an internal tuner.  You only need one pole or tree and can also have a ground at the transformer for safety.  It cannot cover the full 80 meter band but can easily be adjusted to cover either SSB or CW without affecting the upper bands.  Depending on how you run the antenna wire it will work the same as or better than your common dipole.  It does not need to be run in a straight line.  Depending on the transformer core size you can run the full legal limit for power. 

 

I just made one for our cabin on lake Wenatchee but you are welcome to give it a try.  It is made to handle up to 500 watts.  I have wire and the transformer, you just need coax.

 

Just yesterday on a low elevation SOTA summit I worked coast to coast and VA to CA and MI to TX with 5 watts and 599 reports using my EFHW antenna.  Fun day away from virus carriers.

73,

Dan KA7GPP

 

 

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)
Sent: Monday, April 6, 2020 7:59 AM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Rowlands reflector question

 

I’d be inclined to put up a 135’ long OCFD if you have the space.  I like the Buckmaster one because it’s pretty bomb-proof but it’s not magically better than all the other variants performance wise.

 

-p W7PFB
73, Don’t forget to smile and have fun!



On Apr 6, 2020, at 7:52 AM, Rowland <rowland.brasch@...> wrote:

 

As mentioned there are several options.  The easiest would be an end fed zep. Not the best option but will work.  I have used one on several occasions in the field and had good success. Get one end up in the tree and use it as a sloper.  Next would be an OCFD get the middle in the tree and the two ends spead out and connected so they are ~10' off of the ground.  Paul may have other thoughts on this.

 

 

Thanks,

 

Rowland

 

 

 

On Sun, Apr 5, 2020 at 9:58 PM Jackson Beard <macleanofduart@...> wrote:

Probably 30 feet high max.

 

On Sun, Apr 5, 2020, 21:58 Paul Butzi (W7PFB) <w7pfb@...> wrote:

What bands do you want to cover?  And how high can you easily get an antenna (trees, etc)?

 

-p W7PFB
73, Don’t forget to smile and have fun!



On Apr 5, 2020, at 9:48 PM, Jackson Beard <macleanofduart@...> wrote:

 

Focus is on ease, not price.

 

On Sun, Apr 5, 2020, 21:28 Rowland <rowland.brasch@...> wrote:

How much do you want to spend? There are G5RVs, Off center fed dipoles, end feed zeps, certified and so on

 

On Sun, Apr 5, 2020 at 7:43 PM Jackson Beard <macleanofduart@...> wrote:

100 x 270 about .70 acre

 

On Sun, Apr 5, 2020, 19:33 Rowland <rowland.brasch@...> wrote:

How much room do you have (acre)?

 

On Sun, Apr 5, 2020 at 6:07 PM Jackson Beard <macleanofduart@...> wrote:

Nope.

 

On Sun, Apr 5, 2020, 17:59 Rowland <rowland.brasch@...> wrote:

Do you have any neighborhood restrictions

 

On Sun, Apr 5, 2020 at 5:10 PM Jackson Beard <macleanofduart@...> wrote:

Since everyone is offering antenna advice, I have a perfect condition kenwood hf radio I should use this time to get working. 

 

What's the easiest antenna to get put u pl in short order?

 

On Sun, Apr 5, 2020, 17:06 Howard E. Mahran / WA1HEM <wa1hem@...> wrote:

Paul,  This is clearly a  newbie question…but  I’m curious, what happens if the inverted V is an actual V? Where the  ends at 30 Ft and center is at 6ft?

 

Sent from Mail for Windows 10

 

From: Paul Butzi (W7PFB)
Sent: Saturday, April 4, 2020 10:51 AM
To: snovarc@snovarc.groups.io
Subject: [SnoVARC] Rowlands reflector question

 

Rowland asked if adding a reflector below his 80m OCFD would improve NVIS performance on 80m.

 

Error! Filename not specified.

 

A bit more than a 2dBi improvement at 90 degrees.  That’s with the reflector length optimized for gain.  The modeled reflector height was .1m AGL.

 

The downside is that it messes up SWR somewhat.  I didn’t snap a comparison though, there are just too many installation variables to make the results meaningful.

 

 

 

-p W7PFB
73, Don’t forget to smile and have fun!

 

 


--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland

 

 

 

 

--

Thanks,
Rowland