This explained in the Radio Interface Guide, section 7.7.


73,
John WB2OSZ

What is the best way to address or point the direwolf.conf to a specific cm108 for PTT as I have three. ?I have the hid for it but not sure how to address it in the conf. Pic for example.


Using windows and 1.7

w

It's working now. I think that the problem was that i had squelch on. I let all of the noise in and now get this. Thanks to everyone for the help.

direwolf -a 10 -t 0 -n 1 -b 16 -B 1200 -r 48000 udp:7355

Dire Wolf version 1.7 (Oct 24 2023) BETA TEST 7
Includes optional support for: ?hamlib cm108-ptt dns-sd

Reading config file direwolf.conf
Audio input device for receive: udp:7355 ?(channel 0)
Audio out device for transmit: default ?(channel 0)
Channel 0: 1200 baud, AFSK 1200 & 2200 Hz, A+, 48000 sample rate.
Note: PTT not configured for channel 0. (Ignore this if using VOX.)
Ready to accept AGW client application 0 on port 8000 ...
Ready to accept KISS TCP client application 0 on port 8001 ...
DNS-SD: Avahi: Announcing KISS TCP on port 8001 as 'Dire Wolf on lenny'
DNS-SD: Avahi: Service 'Dire Wolf on lenny' successfully registered.

ADEVICE0: Sample rate approx. 48.0 k, 0 errors, receive audio level CH0 95
ADEVICE0: Sample rate approx. 48.0 k, 0 errors, receive audio level CH0 106
ADEVICE0: Sample rate approx. 48.0 k, 0 errors, receive audio level CH0 155

KM4BLG-15 audio level = 44(7/8) ? ?_|_______
[0.1] KM4BLG-15>APTT4,WIDE1-1,WIDE2-1:!3553.23N/08233.41W#Big Knob Digipeater/A=004062
Position, Generic digipeater, Tiny Track
N 35 53.2300, W 082 33.4100, alt 1238 m (4062 ft)
Big Knob Digipeater

ADEVICE0: Sample rate approx. 48.1 k, 0 errors, receive audio level CH0 44
ADEVICE0: Sample rate approx. 48.0 k, 0 errors, receive audio level CH0 165
ADEVICE0: Sample rate approx. 48.0 k, 0 errors, receive audio level CH0 163
ADEVICE0: Sample rate approx. 48.0 k, 0 errors, receive audio level CH0 142

Digipeater WIDE2 (probably KM4BLG-14) audio level = 78(13/14) ? ?||||||___
[0.2] SHOJCT>APMI06,NC4HC-15,KM4BLG-14,WIDE2*:@091241z3420.27NG08219.35W&WJ4X iGate... Passin' on the packets...
Position with time, I=Igte IGate R=RX T=1hopTX 2=2hopTX w/overlay G, SQ3PLX http://microsat.com.pl/
N 34 20.2700, W 082 19.3500
WJ4X iGate... Passin' on the packets...

ADEVICE0: Sample rate approx. 48.0 k, 0 errors, receive audio level CH0 167
ADEVICE0: Sample rate approx. 48.0 k, 0 errors, receive audio level CH0 168

It's a 'work in progress'. I don't mind sharing it.? It is 6 python files and source for a web page to control the 'engine'. (index.php, css, javascript). It basically works for audio listening, but now I'm trying to get it to work with direwolf. It is written for using my rspdx, but uses Franco Venturi's sdrplay3 OOT gnu radio source block which handles all sdrplay devices. so it could be generalized for those devices? 'easily'.

I wanted radio software? without a GUI that I can control 'remotely' and automate. I use it on a raspberry pi5 and on Ubuntu.

I could zip it up. Is it OK to post here as an attachment?

Andrew, excellent and fair point, I am in a pretty rural location, I have been able to decode packets in the past using my Openwebrx setup but lately not at all, the previous decode was using a long wire in the trees.
openwebrx can see the packets but not decode them because they are so weak, this may be the whole issue.? I did an apt-get update and upgrade and lots of things upgraded, so I booted and now it will just run and I will see what happens.

many thanks for the help.? Joe

Just out of curiosity, are there any packets to be heard in your neighborhood? You said you were in Alberta; that's a pretty big province. Where in Alberta are you? A big city like Calgary?

You might want to tune in a regular 2-meter radio and listen for the characteristic squawks of live packets. Otherwise, you may be on the start of building an entire APRS infrastructure from scratch.

Andrew, KA2DDO

________________________________________
From: [email protected] <[email protected]> on behalf of WB2OSZ <wb2osz@...>
Sent: Wednesday, May 8, 2024 8:42 PM
To: [email protected]
Subject: Re: [direwolf] iGate rx only for pi3B - instructions or walkthrough needed

In the documentation directory, , you should find a file called Raspberry-Pi-SDR-IGate.pdf.

If you run into issues, let us know exactly how far you got.

73,
John WB2OSZ

i wasn't getting any packets so I added the gain =g 21.0 is it necessary to that?? I know that the iGATE is talking to the server because my icon shows up on but never any packets come through, I have changed the freq to 144.39.

rtl_fm -f 144.39M ?-g 21.0 - | direwolf -c /home/pi/sdr.conf -r 24000 -D 1 -

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Hello runcer,

Looking at that original article you posted, that's dated from 2017 running Direwolf 1.4 which are both very old.? I would recommend that you start with a newer OS such as Bookworm (newest) or Bullseye and build up from there.?
To get a RX-iGate working, there are a lot of guides out there but it's not clear how much instruction you need.? I would recommend to start with this doc:

??

Let us know if you're looking to follow a document step by step to build things yourself (best way to learn) or maybe you want to download a pre-created Raspberry Pi image. Once you tell us your desired approach, we can recommend some URLs to check out.

--David
KI6ZHD

In the documentation directory,? , you should find a file called? Raspberry-Pi-SDR-IGate.pdf.

If you run into issues, let us know exactly how far you got.

73,
John WB2OSZ

I have this hardware and I want to build a RX only iGate for my pi3B which I can leave on always.? Can you suggest a set of instructions or walkthrough? FYI I am in Alberta Canada.? Thank you.
- raspberry pi 3b
- nooelec rtl-sdr v5
- 144MHz antenna

I followed some older instructions and got things running but it never gets a packet
these are the instructions:
https://qso365.co.uk/2018/04/updated-guide-to-setting-up-an-aprs-rx-only-igate-using-a-raspberry-pi-rtl-sdr-dongle-and-a-pre-built-image/

Is the UDP audio stream going to the correct port?
Is the SDR radio producing 16 bit (LE) audio samples at 48,000/second?
Try putting "-a 10" on the direwolf command line.?

73,
John WB2OSZ

I meant to type narrow fm.

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Hello Bob,

That software should work though it is old as v1.7 was released on October 28th:

??

Since then, the new DEV branch is tracking the v1.8 code.? I don't think there is anything there that would benefit you yet as most of it is for GPIO signalling, etc.? As for troubleshooting Direwolf, make sure:

?? - Your GnuRadio flowgraph isn't doing any squelch - make sure all static is making it to Direwolf
?? - While running for a while, Direwolf should periodically send updates to STDOUT.? Are you seeing that output?? What does it say?
?? - You should also double check that your GnuRadio output samples are really 16bit.?

--David

Hi Bob,

I have a non-gui gnu radio python program that tunes into 144.39 MHz, narrow side band

I'm surprised by "narrow side band", shouldn't GNU Radio be configured with a NBFM (Narrow Band Frequency Modulation) demodulator for this purpose ?

Do you mind sharing your python script ?

Thanks
Thomas
KK6FPP

This is on Ubuntu 22.04. I have a non-gui gnu radio python program that tunes into 144.39 MHz, narrow side band and sends 48k audio to an audio sink and also to the UDP sink. I can control the app via a websocket interface. I'm using a Diamond 2 meter / 70 cm antenna into a rspdx. The signal is strong. The audio sounds great. I used netcat to verify that there is data on port 7355 ( nc -l -u 7355 ).

Bob,

I would like to do something similar. Can you explain your hardware and software configuration such that I might attempt to reproduce it.

..jpw J P Watters

Dire Wolf version 1.7 (Oct 24 2023) BETA TEST 7
Includes optional support for: ?hamlib cm108-ptt dns-sd

Reading config file direwolf.conf
Audio input device for receive: udp:7355 ?(channel 0)
Audio out device for transmit: default ?(channel 0)
Channel 0: 1200 baud, AFSK 1200 & 2200 Hz, A+, 48000 sample rate.
Note: PTT not configured for channel 0. (Ignore this if using VOX.)
Ready to accept AGW client application 0 on port 8000 ...
Ready to accept KISS TCP client application 0 on port 8001 ...
DNS-SD: Avahi: Announcing KISS TCP on port 8001 as 'Dire Wolf on lenny'
DNS-SD: Avahi: Service 'Dire Wolf on lenny' successfully registered.

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Hello Bob,

Can you show the output of when you start Direwolf?

--David
KI6ZHD