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Re: polling failed

 


SSH session

Linux PiGate 4.19.66-v7+ #1253 SMP Thu Aug 15 11:49:46 BST 2019 armv7l

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Dec? 7 14:15:34 2019 from 10.10.10.20
pi@PiGate:~ $ sudo listen -8ar
tnc: fm KA4UPC to KJ4RUS-10 ctl SABM+ 23:30:12.301181
tnc: fm KA4UPC to KJ4RUS-10 ctl DISC+ 23:30:32.274964
pi@PiGate:~ $ sudo listen -8ar

^Cpi@PiGate:~ $ sudo listen -8ar
tnc: fm KA4UPC to KJ4RUS-10 ctl SABM+ 23:32:57.421067
tnc: fm KA4UPC to KJ4RUS-10 ctl DISC+ 23:33:17.051743
pi@PiGate:~ $ sudo listen -8ar
tnc: fm KA4UPC to KJ4RUS-10 ctl SABM+ 23:33:38.938783
tnc: fm KA4UPC to KJ4RUS-10 ctl SABM+ 23:33:49.261103
tnc: fm KA4UPC to KJ4RUS-10 ctl DISC+ 23:34:08.941603
pi@PiGate:~ $


This is what I ordered, assembled and tested fron WVCARC

I am using a TYT radio and I made the mic, spkr, ptt connections myself.

I am 12 miles from one station and 15 from the other (with roof antenna) but I drove to within a mile of each (with mag mount).

I was careful to match frequency on the radio (no CAT).



On Sun, Sep 5, 2021 at 7:01 PM Mark Griffith via <mdgriffith2003=[email protected]> wrote:
Chris,

You say you ordered a built "shield", I'm assuming that is the TNC board.? Where did you get it from?

How far are you from KJ4RUS in Clearwater/Largo area?

There are a number of things that could go wrong to prevent your packet connection.? First, what model of radio are you using and where did you get the interface cable from?? Or did you make it yourself?? Please don't say you're trying to use a Baofeng!? :) :)

If you are using a cable that goes to the mic jack for TX audio and the headphone jack for RX audio, you need to make sure the RX volume is not too loud.? Normally, a volume setting where you can just hear the audio and then increase it a little bit is good, but radios are difference and may require some adjustments.

The timeout message just means what it says, you tried to make a connection to an RMS station and was not able to before the timeout period, which I believe is set for 30 seconds, maybe 60, I don't remember offhand.? :)

The address in use error just comes from a poll failing, and then you push the button right away to try again and the AX.25 software stack in the OS kernel has not yet released the port.? This can sometimes take a little longer in the case of a timeout.? This is part of the OS level AX.25 software which the PiGate uses.

I can't tell for sure from your screen shots, but it looks like you are using version 2.0 of the PiGate software.? You should upgrade, but the PiGate software download site made some changes recently and broke the automated upgrade.? Below is a link to the latest software which may help.



David Ranch mentioned getting a log of the packet level events, which would be useful to help locate your problem.

Please let me know if I can help further.

Mark
KD0QYN




On Sunday, September 5, 2021, 02:02:15 PM CDT, Chris Clement <chris@...> wrote:


I ordered a built/tested PiGate shield and put it on a RPi 3 and added a GPS sensor. I am getting "time out" and "address in use" log messages and nothing else from two different RMS stations. Monitoring with a separate radio sounds like clean packets sent and received. What do these messages say? TIA?
Re: polling failed

 

开云体育

Not letting me in with ssl. I will try to boot in with another RPi.



On Sep 5, 2021, at 3:55 PM, David Ranch <rpi4hamradio-groupsio@...> wrote:

?
Actually, you're seeing a "address already in use" error which might not be a fatal error but I don't know if that's normal either.? Anyway, since you can hear your station transmitting, do you hear the remote station answer?? Does your PiGate station hear those packets?? I don't know if there is a way to show the incoming packets via the web interface but if you can SSH into the Pigate and run:

?? sudo listen -8ar

?? (it also might be named "axlisten" instead)

Now try a polling run and see what shows up in the listen output.? It should start with something like the following.? If your station is not decoding the received packets, you need to increase the audio level from the radio into the TNC
. ?? ? --
?? d710: fm KI6ZHD to KE6AFE-10 ctl SABM+ 12:52:02.649125
?? d710: fm KE6AFE-10 to KI6ZHD ctl UA- 12:52:04.090325
?? d710: fm KE6AFE-10 to KI6ZHD ctl I00^ pid=F0(Text) len 27 12:52:06.262952
?? RMS Packet on Crystal Peak
?? d710: fm KI6ZHD to KE6AFE-10 ctl RR1v 12:52:09.278493
?? d710: fm KE6AFE-10 to KI6ZHD ctl I01^ pid=F0(Text) len 21 12:52:11.135838
?? [WL2K-5.0-B2FWIHJM$]
?? d710: fm KI6ZHD to KE6AFE-10 ctl RR2v 12:52:14.138456
?? d710: fm KE6AFE-10 to KI6ZHD ctl I02^ pid=F0(Text) len 17 12:52:16.184415
?? CMS via KE6AFE >
?? d710: fm KI6ZHD to KE6AFE-10 ctl RR3v 12:52:19.262313
?? --

--David
KI6ZHD



On 09/05/2021 11:56 AM, Chris Clement wrote:

I ordered a built/tested PiGate shield and put it on a RPi 3 and added a GPS sensor. I am getting "time out" and "address in use" log messages and nothing else from two different RMS stations. Monitoring with a separate radio sounds like clean packets sent and received. What do these messages say? TIA

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Re: polling failed

Mark Griffith
 

Chris,

You say you ordered a built "shield", I'm assuming that is the TNC board.? Where did you get it from?

How far are you from KJ4RUS in Clearwater/Largo area?

There are a number of things that could go wrong to prevent your packet connection.? First, what model of radio are you using and where did you get the interface cable from?? Or did you make it yourself?? Please don't say you're trying to use a Baofeng!? :) :)

If you are using a cable that goes to the mic jack for TX audio and the headphone jack for RX audio, you need to make sure the RX volume is not too loud.? Normally, a volume setting where you can just hear the audio and then increase it a little bit is good, but radios are difference and may require some adjustments.

The timeout message just means what it says, you tried to make a connection to an RMS station and was not able to before the timeout period, which I believe is set for 30 seconds, maybe 60, I don't remember offhand.? :)

The address in use error just comes from a poll failing, and then you push the button right away to try again and the AX.25 software stack in the OS kernel has not yet released the port.? This can sometimes take a little longer in the case of a timeout.? This is part of the OS level AX.25 software which the PiGate uses.

I can't tell for sure from your screen shots, but it looks like you are using version 2.0 of the PiGate software.? You should upgrade, but the PiGate software download site made some changes recently and broke the automated upgrade.? Below is a link to the latest software which may help.



David Ranch mentioned getting a log of the packet level events, which would be useful to help locate your problem.

Please let me know if I can help further.

Mark
KD0QYN




On Sunday, September 5, 2021, 02:02:15 PM CDT, Chris Clement <chris@...> wrote:


I ordered a built/tested PiGate shield and put it on a RPi 3 and added a GPS sensor. I am getting "time out" and "address in use" log messages and nothing else from two different RMS stations. Monitoring with a separate radio sounds like clean packets sent and received. What do these messages say? TIA?
Re: polling failed

 

开云体育


Actually, you're seeing a "address already in use" error which might not be a fatal error but I don't know if that's normal either.? Anyway, since you can hear your station transmitting, do you hear the remote station answer?? Does your PiGate station hear those packets?? I don't know if there is a way to show the incoming packets via the web interface but if you can SSH into the Pigate and run:

?? sudo listen -8ar

?? (it also might be named "axlisten" instead)

Now try a polling run and see what shows up in the listen output.? It should start with something like the following.? If your station is not decoding the received packets, you need to increase the audio level from the radio into the TNC
. ?? ? --
?? d710: fm KI6ZHD to KE6AFE-10 ctl SABM+ 12:52:02.649125
?? d710: fm KE6AFE-10 to KI6ZHD ctl UA- 12:52:04.090325
?? d710: fm KE6AFE-10 to KI6ZHD ctl I00^ pid=F0(Text) len 27 12:52:06.262952
?? RMS Packet on Crystal Peak
?? d710: fm KI6ZHD to KE6AFE-10 ctl RR1v 12:52:09.278493
?? d710: fm KE6AFE-10 to KI6ZHD ctl I01^ pid=F0(Text) len 21 12:52:11.135838
?? [WL2K-5.0-B2FWIHJM$]
?? d710: fm KI6ZHD to KE6AFE-10 ctl RR2v 12:52:14.138456
?? d710: fm KE6AFE-10 to KI6ZHD ctl I02^ pid=F0(Text) len 17 12:52:16.184415
?? CMS via KE6AFE >
?? d710: fm KI6ZHD to KE6AFE-10 ctl RR3v 12:52:19.262313
?? --

--David
KI6ZHD



On 09/05/2021 11:56 AM, Chris Clement wrote:

I ordered a built/tested PiGate shield and put it on a RPi 3 and added a GPS sensor. I am getting "time out" and "address in use" log messages and nothing else from two different RMS stations. Monitoring with a separate radio sounds like clean packets sent and received. What do these messages say? TIA?
polling failed

 

I ordered a built/tested PiGate shield and put it on a RPi 3 and added a GPS sensor. I am getting "time out" and "address in use" log messages and nothing else from two different RMS stations. Monitoring with a separate radio sounds like clean packets sent and received. What do these messages say? TIA?
Re: HARDENED pi

 

Yes it is possible to run VARA FM and VARA HF on PI4.
For setup I used this:

Running well with pilinbpq as BBS/GW

73 Jouko OH5RM
Re: HARDENED pi

 

How about a $35 TNC that does 9600?
Re: HARDENED pi

 

9600 baud is doable with a DRAWS? HAT -- which also powers the RPi from the 12 VDC you have for your radio.? There is a metal case available for the Pi?+ Hat.? It also has a built-in GPS for time and location.? Use Direwolf for your software TNC.



On Mon, Aug 30, 2021 at 2:18 PM Don Ritchie <dritchie@...> wrote:

This thread hads made me change my thoughts about VARA FM..

My buddy "insists" we have to be able to run 9600 and we need to use a $400.00 TNC.

IMHO, this is overkill and was just looking for a "cheaper" way.

Looks like I have been "over ruled" twice...

Thanks

Don

On 8/30/2021 15:25, Mark Griffith via wrote:
Don,

This will make your decision so much easier.? :)

VARA FM Only runs on Windows and the author has no plans to port it to another platform.

Mark
KD0QYN


On Monday, August 30, 2021, 02:21:24 PM CDT, Don Ritchie <dritchie@...> wrote:


SORRY, THIS MAY GET LONG ...

while thinking about "vara FM " and realizing that involves a "computer"
at the site.

And not really wanting to put a computer at a "remote" site ( not that
far, but a PIA to access.

what would be the steps to make the Pi more "bullet proof" as a digi.

I am a bit confused about the differences between Vara FM and packet,
this is basically a winlink app.

Thanks

Don









--
John D. Hays
Kingston, WA
K7VE / WRJT-215

?
Re: HARDENED pi

 

开云体育

This thread hads made me change my thoughts about VARA FM..

My buddy "insists" we have to be able to run 9600 and we need to use a $400.00 TNC.

IMHO, this is overkill and was just looking for a "cheaper" way.

Looks like I have been "over ruled" twice...

Thanks

Don

On 8/30/2021 15:25, Mark Griffith via groups.io wrote:

Don,

This will make your decision so much easier.? :)

VARA FM Only runs on Windows and the author has no plans to port it to another platform.

Mark
KD0QYN


On Monday, August 30, 2021, 02:21:24 PM CDT, Don Ritchie <dritchie@...> wrote:


SORRY, THIS MAY GET LONG ...

while thinking about "vara FM " and realizing that involves a "computer"
at the site.

And not really wanting to put a computer at a "remote" site ( not that
far, but a PIA to access.

what would be the steps to make the Pi more "bullet proof" as a digi.

I am a bit confused about the differences between Vara FM and packet,
this is basically a winlink app.

Thanks

Don
Re: HARDENED pi

 

I've built a couple of remote solar powered sites. Here are some of my ideas:


A UPS Hat for the pi. It powers the pi for one minute after power is lost and then gracefully shuts it down.?

I use Industrial SD cards. More reliable and just a few dollars more. SLCs are better but much more costly.?

I have a DTMF decoder to do a reset on the pi.?

I use APRS's telemetry function to measure battery current, voltage, power, solar radiation and cabinet temperature.? This device is easy to interface to the pi??
Re: HARDENED pi

 

The first thing that comes to mind is, what are you trying to accomplish? You mention a remote site that is difficult to access. AFAIK, Winlink is mostly a messaging system and is generally used by an operator. VARA FM is just one digital mode used by the Winlink application to communicate. You can use traditional packet or a few other modes to communicate. As previously mentioned, VARA FM is a Windows only app, so that leaves out the Raspberry Pi.

That being said, if you want to have some kind of digipeater or telemetry service or whatever at a remote site and want to use a "hardened" RPi, my suggestion is to use a MoPi2 power hat. This is a great device that provides several key things. First, it has two power inputs that accept 6-30VDC as well as a charging input from something like a solar panel. You have your primary mains power on one input and your back-up gel cell on the other. The charge input maintains the gel cell. If the main input drops below a preset level, or loses it entirely, it automatically switches to the backup gel cell. If power is not restored and the gel cell drops too far, it automatically does a graceful shutdown of the RPi. It has a single power button control for starting and stopping the RPi gracefully.

For one remote situation I have used this, there is an RPi with the MoPi2 doing things. There is a main 12V power supply powering all systems, including the RPi, plus a gel cell backup for the RPi. In case of a long power loss that shuts down the RPi, there is a small Arduino device that detects when the RPi is shut down. When power is restored, the radio comes back on. The Arduino device senses the RPi is down and sends an ID over the radio periodically. Detecting that ID, I know the RPi is off. I can send a DTMF tone, which is detected by the Arduino and closes the control line to the RPi to restart it. That allows me to restart the system without a trip to the remote site.

Hope that gives you some ideas.

73,
Michael WA7SKG



Don Ritchie wrote on 8/30/21 12:21 PM:

SORRY, THIS MAY GET LONG ...
while thinking about "vara FM " and realizing that involves a "computer"
at the site.
And not really wanting to put a computer at a "remote" site ( not that
far, but a PIA to access.
what would be the steps to make the Pi more "bullet proof" as a digi.
I am a bit confused about the differences between Vara FM and packet,
this is basically a winlink app.
Thanks
Don
Re: HARDENED pi

 

While VARA FM is written for Windows, it's possible to run it on (X86)
Linux using WINE.

There have been some folks that have gotten WIndows 10 and WINE to run
on Raspberry Pi 4, but there's a lot of gotchas with that approach.

Steve N8GNJ

On Mon, Aug 30, 2021 at 12:25 PM Mark Griffith via groups.io
<mdgriffith2003@...> wrote:

Don,

This will make your decision so much easier. :)

VARA FM Only runs on Windows and the author has no plans to port it to another platform.

Mark
KD0QYN


On Monday, August 30, 2021, 02:21:24 PM CDT, Don Ritchie <dritchie@...> wrote:


SORRY, THIS MAY GET LONG ...

while thinking about "vara FM " and realizing that involves a "computer"
at the site.

And not really wanting to put a computer at a "remote" site ( not that
far, but a PIA to access.

what would be the steps to make the Pi more "bullet proof" as a digi.

I am a bit confused about the differences between Vara FM and packet,
this is basically a winlink app.

Thanks

Don









--
Steve Stroh stevestroh@...
Editor
Zero Retries Newsletter -

Re: HARDENED pi

 

开云体育

Thanks Mark, that explains why "nobody" thought of that sooner.

It does, however make the decision so much easier??

I guess we can turn that idea off !

Thanks

~d

On 8/30/2021 15:25, Mark Griffith via groups.io wrote:

Don,

This will make your decision so much easier.? :)

VARA FM Only runs on Windows and the author has no plans to port it to another platform.

Mark
KD0QYN


On Monday, August 30, 2021, 02:21:24 PM CDT, Don Ritchie <dritchie@...> wrote:


SORRY, THIS MAY GET LONG ...

while thinking about "vara FM " and realizing that involves a "computer"
at the site.

And not really wanting to put a computer at a "remote" site ( not that
far, but a PIA to access.

what would be the steps to make the Pi more "bullet proof" as a digi.

I am a bit confused about the differences between Vara FM and packet,
this is basically a winlink app.

Thanks

Don
Re: HARDENED pi

 

Don, there should be a battery to run the PI if the mains go away, and the battery has to be big enough to keep it up for the duration of any outage, or there has to be some smart way to tell Linux to stop, then remove power from the PI, then when the power is back, bring the PI back online.

My nodes have a 2 amp gel-cel and the mains run a 14.2v DC supply to run the radios and charge the Raspberry PI. The radios run off of the mains power so only the NInoTNCs and Raspberry PI are on the battery. There is no protection for if the Raspberry PI runs the Gel Cel down.

In one non-air conditioned site (mostly in the shade and well ventilated), I’ve lost 3 batteries in 7 years and two of the batteries were before I realized that my 13.8V power supply which is then dropped through a protection diode wasn’t enough voltage to keep the battery charged. I fixed that by upping the mains DC supply to 14.2V and put in the 3rd battery. The 3rd battery died, I think, because the mains power was off for 4 days. The site is in a wood shed (open at the eves) in the back yard of a ham’s relative’s house. Each time the battery died, the Raspberry PI also went offline and needed attention. It’s been 18 months since I put in the 4th battery.

The batteries cost $10 each so that’s been the cost of my education. The other sites are easier to get to, are all air conditioned, and have also never had an outage for more than an hour. Only the woodshed site has ever locked up and needed a visit.

All of my nodes use G8BPQ software running under Raspbian OS on a Raspberry PI.

None of them have a fan for ventilation except that which is in the power supply.

I’m in North Carolina where the humidity is high and the in-the-shade temperature is in the 90s during a summer day and in the low 30s during many winter night, below freezing rarely.

Tadd - KA2DEW

On Aug 30, 2021, at 3:21 PM, Don Ritchie <dritchie@...> wrote:

SORRY, THIS MAY GET LONG ...

while thinking about "vara FM " and realizing that involves a "computer"
at the site.

And not really wanting to put a computer at a "remote" site ( not that
far, but a PIA to access.

what would be the steps to make the Pi more "bullet proof" as a digi.

I am a bit confused about the differences between Vara FM and packet,
this is basically a winlink app.

Thanks

Don
Re: HARDENED pi

Mark Griffith
 

Don,

This will make your decision so much easier.? :)

VARA FM Only runs on Windows and the author has no plans to port it to another platform.

Mark
KD0QYN


On Monday, August 30, 2021, 02:21:24 PM CDT, Don Ritchie <dritchie@...> wrote:


SORRY, THIS MAY GET LONG ...

while thinking about "vara FM " and realizing that involves a "computer"
at the site.

And not really wanting to put a computer at a "remote" site ( not that
far, but a PIA to access.

what would be the steps to make the Pi more "bullet proof" as a digi.

I am a bit confused about the differences between Vara FM and packet,
this is basically a winlink app.

Thanks

Don
HARDENED pi

 

SORRY, THIS MAY GET LONG ...

while thinking about "vara FM " and realizing that involves a "computer"
at the site.

And not really wanting to put a computer at a "remote" site ( not that
far, but a PIA to access.

what would be the steps to make the Pi more "bullet proof" as a digi.

I am a bit confused about the differences between Vara FM and packet,
this is basically a winlink app.

Thanks

Don
Re: AirSpy based solution for RadioSonde decoding on Raspberry

 

Look into the [email protected] forum. Lots of knowledgeable folks dealing with receiving, tracking, and recovering radiosondes.

Michael WA7SKG

Gur Lavie wrote on 8/24/21 10:40 AM:

Hi,
my objective is to decode a single specific RadioSonde.
So I will set the SDR# for FM and the correct center frequency.
but I need a way to decode the telemetry.
anyone knows of such Rasoberry solution ?
thanks
Re: AirSpy based solution for RadioSonde decoding on Raspberry

 

I'd say take a look at?


On Tue, Aug 24, 2021, 1:40 PM Gur Lavie <gurlavie@...> wrote:

Hi,
my objective is to decode a single specific RadioSonde.?

So I will set the SDR# for FM and the correct center frequency.?

but I need a way to decode the telemetry.?

anyone knows of such Rasoberry solution ?

thanks
AirSpy based solution for RadioSonde decoding on Raspberry

 

Hi,
my objective is to decode a single specific RadioSonde.?

So I will set the SDR# for FM and the correct center frequency.?

but I need a way to decode the telemetry.?

anyone knows of such Rasoberry solution ?

thanks
Re: Quality USB-A to USB-C cable to avoid voltage drop

Christopher Rose
 

10 piece minimum and $20+ shipping?

On Jul 13, 2021 5:41 PM, "Tadd KA2DEW in NC via groups.io" <tadd@...> wrote:
I’m not sure there is NO noise, but there are 40 of them in use in our data network and I’ve heard no complaints. ?
They are $15 from Amazon?



and $40 for 10 of them from Alibaba.?


But I can’t figure out how to send Alibaba money. ?The web page is always broken in some way late in the purchase. ?

Can anybody buy from these people??
? ?Tadd


On Jul 13, 2021, at 4:27 PM, Dave R <daverickmers@...> wrote:

We see linear supplies that waste half the power as heat and smps supplies that raise the noise floor noticeably.

Can you detect any noise from the DROK? Their website isn't very technical. Amazon is famous for selling EMI plagued devices. 73

On Tue, Jul 13, 2021, 10:21 Tadd KA2DEW in NC via <tadd=[email protected]> wrote:
The acid test for all this is whether the Raspberry PI complains about under-volt.? If the PI doesn’t complain, EVER, you are probably in great shape. ?

Measuring the voltage at the PI makes sense.? Measuring the current doesn’t help much since the PI will draw what it draws. I don’t think longer cables change how much current the Raspberry PI needs and a bigger power supply on the source end won’t change the current the Raspberry PI needs. ?

My solution is to use a 5.2v regulator and a six inch cable to the USB-c plug.? There are a host of inexpensive (< $20) variable output, 8v to 37v input, adjustable output supplies out in the world.? DROK makes a good one which actually has a variable voltage output into a USB-A socket and that’s the one our local radio club uses.? We like that the PI comes on when the radios are powered up.? Having the PI powered up whenever the radios are on is a good thing.? Having the radios powered and the PI not powered can be bad because voltage enough to start up some of the PI’s peripherals can show up on connections between the radios and those peripherals.? So if the PI is powered down and the radios are up, you can get bad glitches in the peripherals. ?

The point is, you need 5.2v at the Raspberry PI.? You can measure the voltage at the 40-pin AUX connector.? Wires drop voltage when the current draw is > 0.? Longer wires drop more voltage and higher current draw causes more voltage drop.? Thinner wires also cause higher voltage drop. ?
So, ?if you have a voltage need, and a current need, and length of wire you want to keep the voltage high enough, the length short enough and the wire thick enough. ?

? ?Tadd





On Jul 12, 2021, at 10:15 PM, dwfunk4475 <dwfunk@...> wrote:

Measure the voltage and current at your Pi, don't guess.?

And FYI, power supplies according to? require 5.1 volts.

-david

On Mon, Jul 12, 2021, 16:15 Jeremy Utley <jerutley@...> wrote:

Hi all in the group!

?

Been doing lots of Google searches, and while years ago I found this kind of info for the old micro-USB cables, I haven’t found similar information for USB-C – and I figure the Pi Ham Radio group is my best bet.

?

I’ve got a Pi-4 8GB model, with an Argon One M.2 case and Samsung SSD as the boot device.? I’m building out this device for portable logging/digital mode usage when I’m on POTA activations – either by VNC from a tablet, or a small portable screen mounted in my radio case.

?

So the problem I have is with voltage drop – I power the Pi via a PowerWerx USB-Buddy – which provides 5v DC @ 3A, connected to a Bioenno LiFePo4 battery.? In my testing here at home, using a 1ft long USB-A to USB-C cable, it works without any problems.? But, I wanted a longer cable, so I went to a 3ft cable from the same maker.? Once I used that cable, I was immediately getting low voltage warnings – so obviously I’m getting voltage drop on the longer cable.? But I’m having trouble finding heavier USB-A to USB-C cables to avoid voltage drop across that length.

?

Anybody have knowledge of any good cables that fit the bill???

?

Thanks!

?

Jeremy, NQ0M
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