Date   

Re: A bit of help needed

Trigger X
 

Hello again, I have been getting used to things and there is a lot to explore but I am fine with that. I have a fellow ham friend in MA, he just got his Pi4 and is eager to get started. I directed him to the link on QRZ.com but it is not working.  The link that both he and I are getting is in the picture below. Has the d/l link been moved? I am trying to turn as many operators on to this as I can. FYI Dave, it is amazing. If anyone can help with some linkage I would be very grateful. Thanks to evryone that is helping. 73, Tryg
--


Re: GPS install

Tim Fleming
 

After playing around with this for awhile I ran across a gps faq by Jason, KM4ACK that “SEEMS” to allow a gps to used with HamPi. So far, it’s working.


 


Re: PAT / Pac-Link Unix / wl2kax25 Questions

Brian Webster
 

That is more of a packet question. The answer lies in what digipeaters you are connecting to. Some such as FlexNet, NetROM, G8BPQ, JNOS and others might be part of a smarter network that has multiple ports and multiple frequency links to other nodes (https://www.eastnetpacket.org/). In FlexNet you would do a destinations list to see what other nodes are reachable but it also has the MH command. NetROM, JNOS and BPQ you would issue a nodes command to see what other nodes are reachable but those systems should also support MH. If the MH command does not work you can also try the JH command. Some more basic TNC's may be set up as a digipeater only on the same frequency. IF they have a real time clock and it is set correctly you can connect to it and the MH command should give you a data and time a station was last heard. Some nodes may not allow digipeating through them.

Packet is starting to make a comeback especially with nodes that support IP routing using the AMPR.org net. I would try to find some local packet experts in your area. Odds are they will be the older guys. Back when the internet first started and you had to dial long distance calls on your phone modems, regional packet networks were very popular. These days there may be more local packet activity with a gateway station that routes the traffic over the internet via the ampr.org (44 Net) that interconnects packet networks that don't have direct RF backbone path connectivity. There are maps on the EastNet pages that show this for stations that participate in that system. And this is a map of G8BPQ nodes http://nodemap.g8bpq.net:81/ while this maps shows some 44 net gateways and IP enabled nodes http://yo2tm.ampr.org/ampr-map/. This web site is a database of packet information new and old http://hackettstownarts.org/ww2bsa.htm#xl_xr_page_ww2bsapacketmap




Brian N2KGC

-----Original Message-----
From: RaspberryPi-4-HamRadio@groups.io [mailto:RaspberryPi-4-HamRadio@groups.io] On Behalf Of Ed Bloom, KD9FRQ via groups.io
Sent: Thursday, June 25, 2020 7:44 AM
To: RaspberryPi-4-HamRadio@groups.io
Subject: [RaspberryPi-4-HamRadio] PAT / Pac-Link Unix / wl2kax25 Questions

I have a couple of PAT / Pac-Link Unix / wl2kax25 questions.

1) What are the commands to note which ( mheard ) statations are
digipeaters and then introgate what stations the digipeaters hears?

2) Using results from #1 above, what are the commands / settings to send
to a station I cannot hear but a shared Digipeater does?

73s, Ed, KD9FRQ


Re: Bluetooth...

Brian Webster
 

Are you running your Pi over Wi-Fi to the network or via Ethernet. Since both Bluetooth and Wi-Fi are in the 2.4 GHz spectrum and the radios are both on the main board, it might be possible that you are having self-interference issues. Turn off the wi-fi and see if you still have issues. I would also be keeping an eye on the power situation. The more things you run such as the Bluetooth radio and such the more current you are drawing. If the power supply you are suing is marginal for the current needed this could be part of any issue.

Brian N2KGC

-----Original Message-----
From: RaspberryPi-4-HamRadio@groups.io [mailto:RaspberryPi-4-HamRadio@groups.io] On Behalf Of stephen shearer
Sent: Wednesday, June 24, 2020 8:10 PM
To: RaspberryPi-4-HamRadio@groups.io
Subject: Re: [RaspberryPi-4-HamRadio] Bluetooth...

I am not using a wireless dongle but the Bluetooth built into the RPi.

using a wired mouse/keyboard is what takes up the USB ports.
My main reason for wanting to use a Bluetooth mouse/keyboard is less
wires on the desktop.

73, steve WB3LGC

On 6/24/20 6:35 PM, Chuck M via groups.io wrote:
Had similar problems when running Logitech wireless mouse and kb using
fldigi and other apps. Wireless is power hungry and may be the
problem. If you get a powered USB hub for the wireless dongle, that can
make it work as well. Usually can find USB 2.x powered hubs for a low
price on ebay or Amazon. Don't need USB 3 for wireless.

Didn't have the problem when running LIbreOffice or other apps. Think
it becomes an issue when processor is busy decoding the radio signals.
Possibly someone more knowledgeable on RPi can expand this further.

73
Chuck
KD9DVB


On Wednesday, June 24, 2020, 6:22:18 PM EDT, Marty Hartwell
<mhartwe@...> wrote:


Hi Stephen

I use a Logic brand keyboard and mouse set I got at Office Depot for
about 15.00 Dollars

of so, which uses only one USB Bluetooth interface, so it opens one USB
slot. I don't see

any lag time as in pauses using the mouse and not pausing during typing
but my typing

has gotten slower for a while. Guess I need to get back to typing for
more practice.

Marty kd8bj


On 6/24/20 5:14 PM, stephen shearer wrote:

I have been using my RPi both headless and with a monitor.

When sitting at the monitor, I have tried Bluetooth for the mouse and
keyboard.
I find that both mouse and keyboard get Hung for short periods of time.
I see it when I run wsjt-x.
I have not checked if it happens with a blank screen.
If I use a wired mouse/keyboard I don't see them hang.

Am I doing something wrong?
Are others seeing the same thing?

Not a big deal but it would be nice to reduce USB ports required...

73, steve WB3LGC


I will be using my RPi for FT8/FT4 80M/40M during FD - 1E DE


Re: Package Installation Scripts

John Nicholas
 

Yes,  CR and CR/LF are a real bug-a-boo.    I first ran into it, when I got a PC file into my MAC at home or XENIX at work.  Pain in the %ˆ*(*&^   One of the easiest and most usable XENIX shell scripts that I wrote was an AWK Script that did most of what dos2unix seems to do.

John


Between the effects of word-wrap and Windows Carriage-return,
Line-feed convention to end lines, the above will require some editing
to use.  The attachments won't have those issues.

The tool dos2unix is handy for massaging a Windows generated text file 
into Unix (Linux) format, it strips the CR that can cause a script to fail.

sudo apt-get install dos2unix

Ray vk2tv


Ray,

Thanks for the information about 'dos2unix'.  I wasn't aware of that
package.  From the information here: http://dos2unix.sourceforge.net/
it appears to be quite a versatile tool.


PAT / Pac-Link Unix / wl2kax25 Questions

Ed Bloom, KD9FRQ
 

I have a couple of PAT / Pac-Link Unix / wl2kax25 questions.

1) What are the commands to note which ( mheard ) statations are digipeaters and then introgate what stations the digipeaters hears?

2) Using results from #1 above, what are the commands / settings to send to a station I cannot hear but a shared Digipeater does?

73s, Ed, KD9FRQ


Re: Package Installation Scripts

Larry Dighera
 

On Thu, 25 Jun 2020 08:07:58 +1000, "Ray Wells" <vk2tv@...>
wrote:



On 25/6/20 2:32 am, Larry Dighera wrote:
On Mon, 22 Jun 2020 11:12:56 -0500, "John Nicholas"
<stnick@...> wrote:

So when I decide to add an app to my collection. Do I add it via the etcher to the download, or onto the SD Card, or download after everything is up and running
Hello John,

<snip>

The first is 'apt.sh' which I run to see if there are any updates
available, before actually downloading a package:

-----------------------------------------------------------------------
<more_snip>
-----------------------------------------------------------------------

Between the effects of word-wrap and Windows Carriage-return,
Line-feed convention to end lines, the above will require some editing
to use. The attachments won't have those issues.
The tool dos2unix is handy for massaging a Windows generated text file
into Unix (Linux) format, it strips the CR that can cause a script to fail.

sudo apt-get install dos2unix

Ray vk2tv
Ray,

Thanks for the information about 'dos2unix'. I wasn't aware of that
package. From the information here: http://dos2unix.sourceforge.net/
it appears to be quite a versatile tool.

Features:
* Native language support: Brazilian Portuguese, Chinese
simplified, Chinese traditional, Danish, Dutch, English, Esperanto,
French, German, Hungarian, Japanese, Norwegian Bokmaal, Polish,
Russian, Serbian, Spanish, Swedish, Ukrainian, Vietnamese.
* Automatically skips binary and non-regular files
* In-place, paired, or stdio mode conversion.
* Keep original file dates option.
* 7-bit and iso conversion modes like SunOS dos2unix.
* Conversion of Unicode UTF-16 files.
* Handles Unicode Byte Order Mark (BOM)
* Display file information
* Secure


I just use this little script to strip out carriage return characters
and the Windows/DOS End Of File Crtl-Z characters from Windows text
files on a Linux/Unix system:

-----------------------------------------------------------------------
# nocr
# This script will strip carriage-return characters from its
argument.
#
# LGD: Mon 25 Jul 07:39:53 PDT 2016
# LGS: Mon 16 Mar 2020 01:13:27 PM PDT Added ^Z character
deletion
#

case $# in
0)echo -e "\n$0: Usage: $0 [filename]" ;;
1) cat $1 | tr -d "\r\032" > ${1}.nocr ;;
*)echo -e "$0 accepts a single filename command-line argument:
[filename]\n" ;;
esac
-----------------------------------------------------------------------

Best regards,
Larry
WB6BBB


Re: Bluetooth...

Mark Griffith
 

John,

WiFi and Bluetooth both use the 2.4Ghz frequency range so they don't pose a problem except for interfering with other WiFi or Bluetooth devices.  Get a WiFi frequency scanner for your laptop, tablet or cell phone (there are many available) and you can get a good picture of what is going on around you.

Some of the older portable telephones (not cellular) used the 2.4Ghz band also and they interfered with WiFi signals.  Also, some older microwave ovens also used these frequencies and were notorious in killing a WiFi channel, but only when someone was heating up coffee.

If you go to a university today and use a WiFi scanner, you'll see so many channels in use it is no wonder there is so much interference.

Mark
KD0QYN


On Wednesday, June 24, 2020, 8:54:21 PM CDT, John Nicholas <stnick@...> wrote:


As a new operator, got my tech and general March 14.   I am wondering about any potential interference from WIFI or Bluetooth signal in the Shack.  Are they a concern?  How big?  Some not others?

John

On Jun 24, 2020, at 7:09 PM, stephen shearer <sm.shearer.01@...> wrote:

using a wired mouse/keyboard is what takes up the USB ports.
My main reason for wanting to use a Bluetooth mouse/keyboard is less wires on the desktop.


Re: Bluetooth...

John Nicholas
 

As a new operator, got my tech and general March 14.   I am wondering about any potential interference from WIFI or Bluetooth signal in the Shack.  Are they a concern?  How big?  Some not others?

John

On Jun 24, 2020, at 7:09 PM, stephen shearer <sm.shearer.01@...> wrote:

using a wired mouse/keyboard is what takes up the USB ports.
My main reason for wanting to use a Bluetooth mouse/keyboard is less wires on the desktop.


autohotspot setup on HamPi 1.0

Heath Petty
 

I can't find any documentation on this. There are several different method and scripts for this. From the release notes, it says its included, but I couldn't find any details about configuration. Any pointers would be helpful.

Thanks
Heath, KL0PC


Re: Bluetooth...

Don Poaps
 

I use the Mobilink Bluetooth TNC 3. I find that it drops off when I leave it on over night in the car. I have to shut everything done remove pairing of TNC and start all over again. 

Yet my Windows can run none stop unless I shut it down

73

Don va7dgp

On Wed., Jun. 24, 2020, 5:40 p.m. Chuck M via groups.io <cam51mail=yahoo.com@groups.io> wrote:
My apologies.  Misread your question.  Have not tried using bluetooth mouse and kb with the rpi, only types using a usb dongle.  Not sure if the same issues with power apply or not.

Chuck
KD9DVB


On Wednesday, June 24, 2020, 8:10:01 PM EDT, stephen shearer <sm.shearer.01@...> wrote:


I am not using a wireless dongle but the Bluetooth built into the RPi.

using a wired mouse/keyboard is what takes up the USB ports.
My main reason for wanting to use a Bluetooth mouse/keyboard is less
wires on the desktop.

73, steve WB3LGC

On 6/24/20 6:35 PM, Chuck M via groups.io wrote:
> Had similar problems when running Logitech wireless mouse and kb using
> fldigi and other apps.  Wireless is power hungry and may be the
> problem.  If you get a powered USB hub for the wireless dongle, that can
> make it work as well.  Usually can find USB 2.x powered hubs for a low
> price on ebay or Amazon.  Don't need USB 3 for wireless.
>
> Didn't have the problem when running LIbreOffice or other apps.  Think
> it becomes an issue when processor is busy decoding the radio signals. 
> Possibly someone more knowledgeable on RPi can expand this further.
>
> 73
> Chuck
> KD9DVB
>
>
> On Wednesday, June 24, 2020, 6:22:18 PM EDT, Marty Hartwell
> <mhartwe@...> wrote:
>
>
> Hi Stephen
>
> I use a Logic brand keyboard and mouse set I got at Office Depot for
> about 15.00 Dollars
>
> of so, which uses only one USB Bluetooth interface, so it opens one USB
> slot. I don't see
>
> any lag time as in pauses using the mouse and not pausing during typing
> but my typing
>
> has gotten slower for a while. Guess I need to get back to typing for
> more practice.
>
> Marty kd8bj
>
>
> On 6/24/20 5:14 PM, stephen shearer wrote:
>
> I have been using my RPi both headless and with a monitor.
>
> When sitting at the monitor, I have tried Bluetooth for the mouse and
> keyboard.
> I find that both mouse and keyboard get Hung for short periods of time. 
> I see it when I run wsjt-x.
> I have not checked if it happens with a blank screen.
> If I use a wired mouse/keyboard I don't see them hang.
>
> Am I doing something wrong?
> Are others seeing the same thing?
>
> Not a big deal but it would be nice to reduce USB ports required...
>
> 73, steve WB3LGC
>
>
> I will be using my RPi for FT8/FT4 80M/40M during FD - 1E DE
>
>




Re: Bluetooth...

Chuck M
 

My apologies.  Misread your question.  Have not tried using bluetooth mouse and kb with the rpi, only types using a usb dongle.  Not sure if the same issues with power apply or not.

Chuck
KD9DVB


On Wednesday, June 24, 2020, 8:10:01 PM EDT, stephen shearer <sm.shearer.01@...> wrote:


I am not using a wireless dongle but the Bluetooth built into the RPi.

using a wired mouse/keyboard is what takes up the USB ports.
My main reason for wanting to use a Bluetooth mouse/keyboard is less
wires on the desktop.

73, steve WB3LGC

On 6/24/20 6:35 PM, Chuck M via groups.io wrote:
> Had similar problems when running Logitech wireless mouse and kb using
> fldigi and other apps.  Wireless is power hungry and may be the
> problem.  If you get a powered USB hub for the wireless dongle, that can
> make it work as well.  Usually can find USB 2.x powered hubs for a low
> price on ebay or Amazon.  Don't need USB 3 for wireless.
>
> Didn't have the problem when running LIbreOffice or other apps.  Think
> it becomes an issue when processor is busy decoding the radio signals. 
> Possibly someone more knowledgeable on RPi can expand this further.
>
> 73
> Chuck
> KD9DVB
>
>
> On Wednesday, June 24, 2020, 6:22:18 PM EDT, Marty Hartwell
> <mhartwe@...> wrote:
>
>
> Hi Stephen
>
> I use a Logic brand keyboard and mouse set I got at Office Depot for
> about 15.00 Dollars
>
> of so, which uses only one USB Bluetooth interface, so it opens one USB
> slot. I don't see
>
> any lag time as in pauses using the mouse and not pausing during typing
> but my typing
>
> has gotten slower for a while. Guess I need to get back to typing for
> more practice.
>
> Marty kd8bj
>
>
> On 6/24/20 5:14 PM, stephen shearer wrote:
>
> I have been using my RPi both headless and with a monitor.
>
> When sitting at the monitor, I have tried Bluetooth for the mouse and
> keyboard.
> I find that both mouse and keyboard get Hung for short periods of time. 
> I see it when I run wsjt-x.
> I have not checked if it happens with a blank screen.
> If I use a wired mouse/keyboard I don't see them hang.
>
> Am I doing something wrong?
> Are others seeing the same thing?
>
> Not a big deal but it would be nice to reduce USB ports required...
>
> 73, steve WB3LGC
>
>
> I will be using my RPi for FT8/FT4 80M/40M during FD - 1E DE
>
>




Re: Bluetooth...

stephen shearer
 

I am not using a wireless dongle but the Bluetooth built into the RPi.

using a wired mouse/keyboard is what takes up the USB ports.
My main reason for wanting to use a Bluetooth mouse/keyboard is less wires on the desktop.

73, steve WB3LGC

On 6/24/20 6:35 PM, Chuck M via groups.io wrote:
Had similar problems when running Logitech wireless mouse and kb using fldigi and other apps.  Wireless is power hungry and may be the problem.  If you get a powered USB hub for the wireless dongle, that can make it work as well.  Usually can find USB 2.x powered hubs for a low price on ebay or Amazon.  Don't need USB 3 for wireless.
Didn't have the problem when running LIbreOffice or other apps.  Think it becomes an issue when processor is busy decoding the radio signals. Possibly someone more knowledgeable on RPi can expand this further.
73
Chuck
KD9DVB
On Wednesday, June 24, 2020, 6:22:18 PM EDT, Marty Hartwell <mhartwe@...> wrote:
Hi Stephen
I use a Logic brand keyboard and mouse set I got at Office Depot for about 15.00 Dollars
of so, which uses only one USB Bluetooth interface, so it opens one USB slot. I don't see
any lag time as in pauses using the mouse and not pausing during typing but my typing
has gotten slower for a while. Guess I need to get back to typing for more practice.
Marty kd8bj
On 6/24/20 5:14 PM, stephen shearer wrote:
I have been using my RPi both headless and with a monitor.
When sitting at the monitor, I have tried Bluetooth for the mouse and keyboard.
I find that both mouse and keyboard get Hung for short periods of time. I see it when I run wsjt-x.
I have not checked if it happens with a blank screen.
If I use a wired mouse/keyboard I don't see them hang.
Am I doing something wrong?
Are others seeing the same thing?
Not a big deal but it would be nice to reduce USB ports required...
73, steve WB3LGC
I will be using my RPi for FT8/FT4 80M/40M during FD - 1E DE


Re: Package Installation Scripts (Was: Re: [RaspberryPi-4-HamRadio] Brand New to Raspberry Pi)

Larry Dighera
 

On Wed, 24 Jun 2020 12:43:29 -0500, "John Nicholas"
<stnick@...> wrote:

Larry,

Thanks for all the info and the scripts.
You're welcome.


I should handle them easily with some practice. My Unix Command Line Skills have deteriorated over the last 15 years, with minimal usage.
Me too. And, Unix/Linux evolves over time, so it's difficult to stay
up to date if you're not continually using it.


I may come back with questions as I get into it.
I'll be looking forward to them.


1st Priority is supervise my SIL install a 6 meter and 10 meter dipole, perhaps one to night and one tomorrow night. I was installing them along with a 20 and 40 meter on the roof.
Once you've experienced the ~6dB gain of a hexbeam, you're station
will be forever changed. You can build one from plans here:
http://www.hex-beam.com/ . And, although the minimum height for
optimal performance in 24', they work remarkable well at much lower
heights.


Then I fell down some steps on the 13th and broke some ribs.
I'm sorry to hear that.

I got my General license in 2012, and promptly erected a hexbeam and
fan-dipole all by my self. (See: http://kj6yvt.com/hex-beam.htm ) It
was difficult (and frightening) at my age. Now eight years older, I'm
unwilling to risk the roof, so I am unable to make repairs.


I got my tech and general tickets on March 14.
Congratulations. I passed both tests at one sitting too.


The HF stuff is set up and awaiting a tuned antenna. I’d like to make a few contacts with Field Day, then work on the Pi stuff.

de KE0ZUW John Nicholas
Amateur Radio General Class Operator
Member ARRL, Wichita ARC, & Air Capitol ARC
Grid Square EM17im


Re: GPS install

Bill AA6BD
 

Wow, David, great article, and with LOTS of other information, too.
--
Bill AA6BD


Re: Bluetooth...

Chuck M
 

Had similar problems when running Logitech wireless mouse and kb using fldigi and other apps.  Wireless is power hungry and may be the problem.  If you get a powered USB hub for the wireless dongle, that can make it work as well.  Usually can find USB 2.x powered hubs for a low price on ebay or Amazon.  Don't need USB 3 for wireless.

Didn't have the problem when running LIbreOffice or other apps.  Think it becomes an issue when processor is busy decoding the radio signals.  Possibly someone more knowledgeable on RPi can expand this further.

73
Chuck
KD9DVB


On Wednesday, June 24, 2020, 6:22:18 PM EDT, Marty Hartwell <mhartwe@...> wrote:


Hi Stephen

I use a Logic brand keyboard and mouse set I got at Office Depot for about 15.00 Dollars

of so, which uses only one USB Bluetooth interface, so it opens one USB slot. I don't see

any lag time as in pauses using the mouse and not pausing during typing but my typing

has gotten slower for a while. Guess I need to get back to typing for more practice.

Marty kd8bj


On 6/24/20 5:14 PM, stephen shearer wrote:

I have been using my RPi both headless and with a monitor.

When sitting at the monitor, I have tried Bluetooth for the mouse and keyboard. 
I find that both mouse and keyboard get Hung for short periods of time.  I see it when I run wsjt-x.
I have not checked if it happens with a blank screen.
If I use a wired mouse/keyboard I don't see them hang. 

Am I doing something wrong?
Are others seeing the same thing?

Not a big deal but it would be nice to reduce USB ports required...

73, steve WB3LGC


I will be using my RPi for FT8/FT4 80M/40M during FD - 1E DE


Re: Bluetooth...

Marty Hartwell
 

Hi Stephen

I use a Logic brand keyboard and mouse set I got at Office Depot for about 15.00 Dollars

of so, which uses only one USB Bluetooth interface, so it opens one USB slot. I don't see

any lag time as in pauses using the mouse and not pausing during typing but my typing

has gotten slower for a while. Guess I need to get back to typing for more practice.

Marty kd8bj


On 6/24/20 5:14 PM, stephen shearer wrote:

I have been using my RPi both headless and with a monitor.

When sitting at the monitor, I have tried Bluetooth for the mouse and keyboard. 
I find that both mouse and keyboard get Hung for short periods of time.  I see it when I run wsjt-x.
I have not checked if it happens with a blank screen.
If I use a wired mouse/keyboard I don't see them hang. 

Am I doing something wrong?
Are others seeing the same thing?

Not a big deal but it would be nice to reduce USB ports required...

73, steve WB3LGC


I will be using my RPi for FT8/FT4 80M/40M during FD - 1E DE


Bluetooth...

stephen shearer
 

I have been using my RPi both headless and with a monitor.

When sitting at the monitor, I have tried Bluetooth for the mouse and keyboard. 
I find that both mouse and keyboard get Hung for short periods of time.  I see it when I run wsjt-x.
I have not checked if it happens with a blank screen.
If I use a wired mouse/keyboard I don't see them hang. 

Am I doing something wrong?
Are others seeing the same thing?

Not a big deal but it would be nice to reduce USB ports required...

73, steve WB3LGC


I will be using my RPi for FT8/FT4 80M/40M during FD - 1E DE


Re: Package Installation Scripts (Was: Re: [RaspberryPi-4-HamRadio] Brand New to Raspberry Pi)

Ray Wells
 

On 25/6/20 2:32 am, Larry Dighera wrote:
On Mon, 22 Jun 2020 11:12:56 -0500, "John Nicholas"
<stnick@...> wrote:

So when I decide to add an app to my collection. Do I add it via the etcher to the download, or onto the SD Card, or download after everything is up and running
Hello John,

<snip>

The first is 'apt.sh' which I run to see if there are any updates
available, before actually downloading a package:

-----------------------------------------------------------------------
<more_snip>
-----------------------------------------------------------------------

Between the effects of word-wrap and Windows Carriage-return,
Line-feed convention to end lines, the above will require some editing
to use. The attachments won't have those issues.
The tool dos2unix is handy for massaging a Windows generated text file into Unix (Linux) format, it strips the CR that can cause a script to fail.

sudo apt-get install dos2unix

Ray vk2tv


PAT Question

Ed Bloom, KD9FRQ
 

What are the steps needed to recognize a Digipeater using the mheard command

then interogate the Digpeater to see what stations it hears

then send a message to a station the Digipeater hears but my station cannot?

73s, Ed, KD9FRQ