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

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

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

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

https://www.facebook.com/groups/EndFedHalfWaveAntennas/?notif_id=1586216557210694&notif_t=group_r2j_approved&ref=notif

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

 

 

 

 

 

 

 

 

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