Date   

SSC Award Continued

Rowland
 

Just found this in the tube the certificate came in.  Thought you all would like to see it.


Thanks,

Rowland


Re: Congratulations Everyone!

Howard E. Mahran / WA1HEM
 

This is fantastic and well deserved. Congratulations to the club and its members. I’m really proud to be a part of such a great group of folk! 


On Nov 20, 2020, at 5:34 PM, Rowland <rowland.brasch@...> wrote:


The club has received the "Special Service Club Award" from the American Radio Relay League (ARRL).  The following is directly from the ARRL website...

"A club that exists to go above and beyond for their communities and for Amateur Radio is what defines a Special Service Club (SSC).  They are the leaders in their Amateur Radio communities who provide active training classes, publicity programs and actively pursue technical projects and operating activities."

I applied for this award about two months ago at the recommendation of Lynn Burlingame, the ARRL Affiliated Club Coordinator for Western Washington.

We provide classes, work with our local cities and fire departments, have great Elmer sessions, provide additional help and training with the Rookie Roundtable, do monthly on air drills, work with the Carnation Duvall Citizen Corps with their drills and so on.

We are still moving forward with many of these tasks even through this pandemic.

Lynn thought this club deserved a pat on the back for all of our efforts.

You should all be proud!

<image.png>

<image.png>



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


Congratulations Everyone!

Rowland
 

The club has received the "Special Service Club Award" from the American Radio Relay League (ARRL).  The following is directly from the ARRL website...

"A club that exists to go above and beyond for their communities and for Amateur Radio is what defines a Special Service Club (SSC).  They are the leaders in their Amateur Radio communities who provide active training classes, publicity programs and actively pursue technical projects and operating activities."

I applied for this award about two months ago at the recommendation of Lynn Burlingame, the ARRL Affiliated Club Coordinator for Western Washington.

We provide classes, work with our local cities and fire departments, have great Elmer sessions, provide additional help and training with the Rookie Roundtable, do monthly on air drills, work with the Carnation Duvall Citizen Corps with their drills and so on.

We are still moving forward with many of these tasks even through this pandemic.

Lynn thought this club deserved a pat on the back for all of our efforts.

You should all be proud!

image.png
image.png


Re: Icom OPC-1529R pinout

Robin Amundson
 

If your cable is a Prolific it is irredeemable. 


On Fri, Nov 20, 2020, 8:46 AM Ryan - KJ7GIE <rsm@...> wrote:
Does someone have an Icom OPC-1529R cable that they would kindly verify the pinout for me? Or can I borrow it for the weekend?

This is the RS-232C (DB9 <-> 2.5mm phono) cable used on the DATA1 jack of the IC-7100 (and others) radio. On the IC-7100 this is the port for feeding GPS NMEA sentences. I bought a generic cable and the radio does not indicate its seeing the sentences. Next step in my troubleshooting is to identify that my generic cable is pinned properly. My Google searching indicates my cable _should_ be good but I cannot find any official pinout material from Icom so I hope someone can confirm from the "real deal" cable.

Much appreciated, happy Friday, and 73's






Re: Icom OPC-1529R pinout

Ryan - KJ7GIE
 

Got the null modem test covered already (no change). I need to build some kind of breakout to start taking the other signals to ground on the GPS side. That is the part that is not easily tested and is my weekend project. Obviously, the radio side does not need any of those signals because the 2.5mm phono cannot provide them. But, I'm not sure what the GPS side may need to start sending. And, yes, I realize I'm probably making this the most complicated way to get GPS into the 7100.

OK, joke time... during my research I found a post someone requesting advise on a bracket to attach their GPS antenna to their residential radio tower. One of the responses "How often does your tower move?"


Re: Icom OPC-1529R pinout

Paul Butzi (W7PFB)
 

I am one of thoseold guys who suffered through the prevalence of RS-232C and I can tell you that the frequency of problems being related to a need for a null modem in between devices is very high.

It may be that your cable is wired correctly but needs tx and rx swapped. Or that one device or the other is expecting/insisting on one of the RTS/CTS/DCR/DTR signals and not seeing it.

Or baud rate mismatch. Or just some confusion about bits per character, parity presence/odd/evenness.

It’s times like this I wish I had a fancy schmancy oscope that did serial data decode, so that I could lend it to you to get you unstuck.

I do have a dual trace oscope that does not do serial decode, and I would be happy to loan it to you so he can at least examine the signals at the 2.5mm plug end and see what’s on what part of the connector.

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

On Nov 20, 2020, at 8:46 AM, Ryan - KJ7GIE <@KJ7GIE> wrote:

Does someone have an Icom OPC-1529R cable that they would kindly verify the pinout for me? Or can I borrow it for the weekend?

This is the RS-232C (DB9 <-> 2.5mm phono) cable used on the DATA1 jack of the IC-7100 (and others) radio. On the IC-7100 this is the port for feeding GPS NMEA sentences. I bought a generic cable and the radio does not indicate its seeing the sentences. Next step in my troubleshooting is to identify that my generic cable is pinned properly. My Google searching indicates my cable _should_ be good but I cannot find any official pinout material from Icom so I hope someone can confirm from the "real deal" cable.

Much appreciated, happy Friday, and 73's





Re: Icom OPC-1529R pinout

Ralph Lease
 

Ryan,
I'm probably looking at the same data online that you are. It shows the 2.5 mm stereo plug tip as db9 terminal 3, the center as terminal 2 and the rear as terminal 5.

Ralph 

On Fri, Nov 20, 2020, 8:46 AM Ryan - KJ7GIE <rsm@...> wrote:
Does someone have an Icom OPC-1529R cable that they would kindly verify the pinout for me? Or can I borrow it for the weekend?

This is the RS-232C (DB9 <-> 2.5mm phono) cable used on the DATA1 jack of the IC-7100 (and others) radio. On the IC-7100 this is the port for feeding GPS NMEA sentences. I bought a generic cable and the radio does not indicate its seeing the sentences. Next step in my troubleshooting is to identify that my generic cable is pinned properly. My Google searching indicates my cable _should_ be good but I cannot find any official pinout material from Icom so I hope someone can confirm from the "real deal" cable.

Much appreciated, happy Friday, and 73's






Icom OPC-1529R pinout

Ryan - KJ7GIE
 

Does someone have an Icom OPC-1529R cable that they would kindly verify the pinout for me? Or can I borrow it for the weekend?

This is the RS-232C (DB9 <-> 2.5mm phono) cable used on the DATA1 jack of the IC-7100 (and others) radio. On the IC-7100 this is the port for feeding GPS NMEA sentences. I bought a generic cable and the radio does not indicate its seeing the sentences. Next step in my troubleshooting is to identify that my generic cable is pinned properly. My Google searching indicates my cable _should_ be good but I cannot find any official pinout material from Icom so I hope someone can confirm from the "real deal" cable.

Much appreciated, happy Friday, and 73's


Re: Tonights mini exercise

Dan Pflugrath
 

For reference on your 6 meter test tonight from Arlington.  Nothing on FM but on SSB I could hear voices in the back ground  but Ken W7ECK moved the S meter a little and the voice came through clear.  Curious what antenna Ken was using.

 

73,

Dan KA7GPP

 

 

 

 

From: snovarc@snovarc.groups.io [mailto:snovarc@snovarc.groups.io] On Behalf Of Paul Butzi (W7PFB)
Sent: Thursday, November 19, 2020 4:08 PM
To: snovarc@snovarc.groups.io
Subject: Re: [SnoVARC] Tonights mini exercise

 

If a frequency used in the exercise is in use, or is unusable due to interference, look up and down a short distance on the dial to find the exercise.

 

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



On Nov 19, 2020, at 4:05 PM, Rowland <rowland.brasch@...> wrote:

 

plus of minus interference or prior use.....  HUH?

 

 

Thanks,

 

Rowland

 

 

 

On Thu, Nov 19, 2020 at 3:03 PM Tom WA7TBP via groups.io <tomwa7tbp=aol.com@groups.io> wrote:

Hello all:

Tonight our mini exercise will be 6 meter FM simplex and SSB testing. We will use the frequencies listed below, plus of minus interference or prior use:

 

    FM 52.54 MHz, no tone, no offset

 

    SSB: USB, 50.200

 

I will use the Cougar repeater to coordinate any changes in the frequencies shown above.

 

See you tonight after net. We are usually done with net around 8:15 PM, give or take a few minutes. Issaquah ham club members, feel free to share this info with other Issaquah club members you think may be interested in participating.

 

73,

 

Tom

 

 

 



____________________________________________________________

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Hex Beam Antenna

Howard E. Mahran / WA1HEM
 

Here is a link to the Hex Beam antenna I mentioned during the Rookie Roundtable:

http://k4hex.com/products.asp


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


Re: Tonights mini exercise

Howard E. Mahran / WA1HEM
 

I’m all tuned up and ready to give it a go. Thanks Tom!


On Nov 19, 2020, at 4:08 PM, Paul Butzi (W7PFB) <w7pfb@...> wrote:

If a frequency used in the exercise is in use, or is unusable due to interference, look up and down a short distance on the dial to find the exercise.

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

On Nov 19, 2020, at 4:05 PM, Rowland <rowland.brasch@...> wrote:

plus of minus interference or prior use.....  HUH?


Thanks,

Rowland



On Thu, Nov 19, 2020 at 3:03 PM Tom WA7TBP via groups.io <tomwa7tbp=aol.com@groups.io> wrote:
Hello all:

Tonight our mini exercise will be 6 meter FM simplex and SSB testing. We will use the frequencies listed below, plus of minus interference or prior use:
 
    FM 52.54 MHz, no tone, no offset
 
    SSB: USB, 50.200
 
I will use the Cougar repeater to coordinate any changes in the frequencies shown above.
 
See you tonight after net. We are usually done with net around 8:15 PM, give or take a few minutes. Issaquah ham club members, feel free to share this info with other Issaquah club members you think may be interested in participating.
 
73,
 
Tom




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


Re: Tonights mini exercise

Paul Butzi (W7PFB)
 

If a frequency used in the exercise is in use, or is unusable due to interference, look up and down a short distance on the dial to find the exercise.

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

On Nov 19, 2020, at 4:05 PM, Rowland <rowland.brasch@...> wrote:

plus of minus interference or prior use.....  HUH?


Thanks,

Rowland



On Thu, Nov 19, 2020 at 3:03 PM Tom WA7TBP via groups.io <tomwa7tbp=aol.com@groups.io> wrote:
Hello all:

Tonight our mini exercise will be 6 meter FM simplex and SSB testing. We will use the frequencies listed below, plus of minus interference or prior use:
 
    FM 52.54 MHz, no tone, no offset
 
    SSB: USB, 50.200
 
I will use the Cougar repeater to coordinate any changes in the frequencies shown above.
 
See you tonight after net. We are usually done with net around 8:15 PM, give or take a few minutes. Issaquah ham club members, feel free to share this info with other Issaquah club members you think may be interested in participating.
 
73,
 
Tom




Re: Tonights mini exercise

Rowland
 

plus of minus interference or prior use.....  HUH?


Thanks,

Rowland



On Thu, Nov 19, 2020 at 3:03 PM Tom WA7TBP via groups.io <tomwa7tbp=aol.com@groups.io> wrote:
Hello all:

Tonight our mini exercise will be 6 meter FM simplex and SSB testing. We will use the frequencies listed below, plus of minus interference or prior use:
 
    FM 52.54 MHz, no tone, no offset
 
    SSB: USB, 50.200
 
I will use the Cougar repeater to coordinate any changes in the frequencies shown above.
 
See you tonight after net. We are usually done with net around 8:15 PM, give or take a few minutes. Issaquah ham club members, feel free to share this info with other Issaquah club members you think may be interested in participating.
 
73,
 
Tom


Tonights mini exercise

Tom WA7TBP
 

Hello all:

Tonight our mini exercise will be 6 meter FM simplex and SSB testing. We will use the frequencies listed below, plus of minus interference or prior use:
 
    FM 52.54 MHz, no tone, no offset
 
    SSB: USB, 50.200
 
I will use the Cougar repeater to coordinate any changes in the frequencies shown above.
 
See you tonight after net. We are usually done with net around 8:15 PM, give or take a few minutes. Issaquah ham club members, feel free to share this info with other Issaquah club members you think may be interested in participating.
 
73,
 
Tom


Brand new LP-100A Meter

Howard E. Mahran / WA1HEM
 

Hi Snovarcians,

I have a brand new, beautiful LP-100A watt / SWR meter with 160-6M coupler that is going to be returned to the Vendor as I received the unit in error. I have the option of re-homing it. Contact me if interested. 


lp-100a-wattmeter-n8lp - QRZ NOW - Ham Radio News

lp100

lp100

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


Re: Road Closure

Ken Kosters
 

Working? Hopefully you are using this term loosely, laughs.

Ken 

On Wed, Nov 18, 2020 at 3:17 PM Rowland <rowland.brasch@...> wrote:
Looks like they will be working on the highway slide area starting on the 30th. Click on the following link to review. Dates have changed once already and they may change again.



Thanks,

Rowland


Road Closure

Rowland
 

Looks like they will be working on the highway slide area starting on the 30th. Click on the following link to review. Dates have changed once already and they may change again.



Thanks,

Rowland


My portable network time server / GPS feeder is about done

Ryan - KJ7GIE
 

I've had this idea for a while and finally bought the parts and started working on it a couple weeks back. For the most part, as of this past weekend, it works. What is it? Why?

Some digital modes require accurate time and some radio software is easier to use if it knows your location. Examples of these are FT8, JT65, APRS, Fldigi / Flmsg, some Winlink forms, D-Star (if the Icom radio knows your location it will auto-populate nearby repeaters), and a handful of others. My idea was to use a Raspberry Pi with GPS module to both follow the Pulse Per Second (PPS), to keep the clock accurate, as well as send the NMEA data out a serial port to whatever device is attached. The Raspberry Pi would also act as a Network Time Protocol (NTP) server so other devices could use the high accuracy of the PPS to keep their clocks synced. The Raspberry Pi can also act as a DHCP server so, in the field for example, anything plugged into it on the network will obtain an IP address as well as auto-configure to use the Pi as the time source. The Pi can be run from any 5v power source. I have not identified the actual power draw yet.

Parts List:
Raspberry Pi 4 - I'm using a 3 because that's what I had on hand. There are issues with the 3 that make it less accurate. I recommend get a 4 if you can but a 3 does work.

Adafruit Ultimate GPS HAT - There are other options that should work but this was straightforward and works as advertised.

Adafruit Active GPS Ant - The GPS HAT has an embedded antenna on the circuit board but I wasn't sure how good it was so got this antenna anyway. More on this below.

SMA - UMCC pigtail - The external antenna connector on the GPS HAT is one of those silly tiny, expect you'll damage it, UMCC connectors. Need this adapter to use the ant.

AB Electronics Serial Pi Plus - More on this below

One 1220CR battery - This allows the GPS HAT to keep time even if powered off which allows for _really_ fast GPS locks times once it is powered.

Short write-up:
I can go into more detail but essentially here is my set-up. The GPS HAT starts trying to acquire a signal as soon as it has power. I used Raspberry Pi OS. There is only 1 serial port on the Raspberry Pi and that, by default, is used for the console. This console configuration gets disabled which allows the HAT to take-over the serial UART. Now the Raspberry Pi can read the GPS output from the HAT. Configure the Raspberry Pi to read the PPS on the GPIO pin and enable the kernel PPS module. The UART of the Pi works with 2-wires and +/- 3 volts. That is completely unreliable for anything that is expecting RS232 (including my radio and the PC I used for testing). The Serial Pi Plus converts the UART signals to proper RS232 which the attached device can understand. This is the only reason the Serial Pi is required. There may be better options than the Serial Pi but this was a quick path to solve the UART problem. Note! This is a _giant_ hack as the GPS HAT is expected to feed the Raspberry Pi and _not_ an external device but we'll all just nod our heads, smile, and move on (again, this is the short write-up).

Software used: ntp-4.2.8p15 compiled with minimal configuration + gps/pps module. A couple start-up scripts and a script to hack-up getting the Serial Pi to spit-out the NMEA lines periodically. I am not using gpsd as that causes issues with the serial port. NTP has its own modules for reading time from a GPS / PPS and that's working just fine. Various other bits of software were used for testing but I settled on NTP stand-alone. It ended-up being the cleanest way to accomplish the goal.

Testing: I currently have NTP running on the raspberry pi using both the PPS as well as the GPS feed. I also added all the Ubuntu pool servers. I've let the thing stabilize over the last 12 hours (NTP wants multiple days but this is closer to what it looks like shortly after boot which is how it would work in the field) and the results are below. Surprisingly the GPS HAT board antenna, in a south facing window sill, acquires a GPS lock without issue but it's location drifts a bit. For testing this works fine but I'm looking forward to seeing if it gets better with the external antenna. I am waiting to get to a more "permanent" installation before using the little UMCC pigtail. I may even wait until I have a proper case to keep that cable stable (I'm fearful of busting the connector on the board). The serial port is connected to a PC in my shack and I'm using VisualGPS which will graph Lat / Long / Altitude so I can see any drift from the GPS. So far, feeding the NMEA from the serial port is reliable enough to keep VisualGPS within a house of my actual location. Additionally, on the Windows 10 PC I loaded NTP and disabled Windows time sync. Immediately after doing this I fired WSJT to receive some FT8 and was averaging 0.5 DT. I think that's pretty good.

Next: I have a DB9 -> 2.5mm cable ordered so I can plug the thing into my IC-7100. I need to get the Raspberry Pi integrated with my home network and update my DHCP server so all the machines in my house will use it for time sync. Need to identify power draw with the ext ant. I'm on the hunt for someone who can 3D print me a custom case. I think that's about it. Onto the next project. And, of course, work on my field kit since this whole thing is intended to be portable. ohh... maybe do a more in-depth write-up on some of the things I learned but that will be towards a targeted audience so I don't bore the whole club.

I'll post a picture on FB.

73's all!

$ ntpq -pn
remote refid st t when poll reach delay offset jitter
==============================================================================
o127.127.22.0 .PPS. 0 l 1 64 377 0.000 +0.084 0.027
*127.127.20.0 .GPS. 0 l 2 64 377 0.000 -121.72 118.636
+10.66.66.53 137.190.2.4 2 u 44 64 377 0.578 +4.665 0.085
0.ubuntu.pool.n .POOL. 16 p - 64 0 0.000 +0.000 0.002
1.ubuntu.pool.n .POOL. 16 p - 64 0 0.000 +0.000 0.002
2.ubuntu.pool.n .POOL. 16 p - 64 0 0.000 +0.000 0.002
3.ubuntu.pool.n .POOL. 16 p - 64 0 0.000 +0.000 0.002
192.168.114.255 .BCST. 16 B - 64 0 0.000 +0.000 0.002
+5.189.141.35 17.253.54.123 2 u 57 64 377 178.121 +0.388 4.187
+50.205.244.39 50.205.244.27 2 u 11 64 377 75.812 +0.772 10.082
+45.157.190.152 84.16.73.33 2 u 5 64 377 180.309 -0.108 2.777
+138.236.128.36 216.218.254.202 2 u 63 64 177 77.774 -3.311 1.599
+172.86.179.86 129.134.26.123 2 u 62 64 377 67.850 +2.049 3.642
+91.209.94.10 .SOCK. 1 u 52 64 377 211.595 +2.115 1.557
+184.105.182.16 216.218.254.202 2 u 61 64 377 33.015 +4.361 6.329
+144.34.193.110 216.218.192.202 2 u 43 64 377 42.220 +6.381 3.827
+50.205.244.36 50.205.244.28 2 u 43 64 377 75.821 +0.706 3.661
+185.216.212.128 131.188.3.220 2 u 10 64 377 175.342 -2.247 6.280
+206.55.191.142 .PPS. 1 u 14 64 377 76.507 -2.168 4.968
+23.157.160.168 18.26.4.105 2 u 49 64 377 85.071 -2.373 7.619
+159.203.158.197 128.59.0.245 2 u 48 64 377 92.448 +0.481 6.708

NOTE: The "o" means NTPd is using a PPS source and this row is available to adjust the system time. The * is the current "active" reference clock. When using GPS and PPS together NTP will adjust ticks to PPS but pull current time from GPS. The high "offset" on the GPS is caused by tremendous jitter / latency of the UART on the Raspberry Pi 3 since the UART speed is tracked against CPU frequency. That's terrible for precise time keeping. I've configured the Pi to minimize this as much as possible but this is why I recommend using a Pi 4. The rest of the lines are standard NTP server configuration for most Linux distributions and are currently being used just to make sure my GPS source is staying accurate against other sources. If the GPS was to drift too much it would "x" those lines and * a more accurate source. The +'s are candidates if the current reference were to fail.


Re: Can I use a duplexer / triplexer in reverse with 2 rigs and 1 antenna

Howard E. Mahran / WA1HEM
 

This is a blurb from the product listing on  DXEngineering page for the Diamond Triplexer (same specs as the Comet) - "Diamond Antenna Triplexers are used to split or combine HF, VHF, and UHF signals. These triplexers may be used for combining three transceivers or transceiver connectors with different band ranges onto one coax feed line."
--
*************************
Howard E. Mahran
WA1HEM
(425) 864 - 5104
*************************


Re: TEDx Presentation

Robin Amundson
 

Looks interesting.  Thank you Rowland.


On Mon, Nov 16, 2020, 5:36 PM Rowland <rowland.brasch@...> wrote:
This looks like it is going to be a wonderful virtual event.  If you are familiar with TED Talks then you would enjoy this.  Take a look at the website and register if you have any interest.




Thanks,

Rowland