¿ªÔÆÌåÓý

  1. Direwolf
  2. Topics

New Quadra APRS Installation

 

Greetings,
I am setting up a Quadra computer for APRS. I have the YAAC? client installed and working with? APRS-IS, now I need to connect a radio. I have installed direwolf for the modem. Now, I have two issues.

First, the audio interface. This is a no budget setup so something like Signalink is out of the question. I've got a couple cheap USB audio interfaces that have mic in and speaker out jacks. Will those work with direwolf?

Second is PTT. The Quadra has no I/O pins or serial port to trigger the PTT. The radio does not have VOX, which I would not use anyway.

Next, is direwolf usable with other digital modes than packet/APRS, like fldigi or WSJT-X?

Thanks for any suggestions/advice.

73,
Michael WA7SKG
 
Edited

Direwolf has an option to use the GPIO of a CM108 sound card.? It requires taking the sound card apart and adding a resistor coming off a pin of the chip, and transistor to control the PTT.
Look up CM108 PTT and you should find some instructions.? I don't bother with SQL as the Direwolf is much better at checking if a signal is coming in.

Another option would be a cheaper interface than a SignaLink-USB.?
DINAH is at least half the price, and there may be others.
-------
Rob KB8RCO
 

Have you looked at the Digirig???
$50 bucks!

Tyler Griffiths
N7UWX





On Wed, Sep 6, 2023 at 8:03?PM Michael WA7SKG <wa7skg@...> wrote:
Greetings,
I am setting up a Quadra computer for APRS. I have the YAAC? client installed and working with? APRS-IS, now I need to connect a radio. I have installed direwolf for the modem. Now, I have two issues.

First, the audio interface. This is a no budget setup so something like Signalink is out of the question. I've got a couple cheap USB audio interfaces that have mic in and speaker out jacks. Will those work with direwolf?

Second is PTT. The Quadra has no I/O pins or serial port to trigger the PTT. The radio does not have VOX, which I would not use anyway.

Next, is direwolf usable with other digital modes than packet/APRS, like fldigi or WSJT-X?

Thanks for any suggestions/advice.

73,
Michael WA7SKG

 

¿ªÔÆÌåÓý


Hello Michael,

First, the audio interface. This is a no budget setup so something like Signalink is out of the question. I've got a couple cheap USB audio interfaces that have mic in and speaker out jacks. Will those work with direwolf?

Can you give us some details of these "cheap devices"?? If they are what I think they are, they are CM108-based sound devices and should work for audio AND PTT with the addition of a few simple electronic components and some soldering.


Second is PTT. The Quadra has no I/O pins or serial port to trigger the PTT. The radio does not have VOX, which I would not use anyway.

Can you tell us which radio you're planning on using??


Next, is direwolf usable with other digital modes than packet/APRS, like fldigi or WSJT-X?

Direwolf only does AX.25 packet radio, AIS reception, and some DTMF stuff.? Fldigi, WSJT-X, etc are all entirely different programs supporting very different digital? modes.

--David
KI6ZHD
 

Thanks for your reply, David.

The audio adapters I have look like a thumb drive with a couple jacks on the end. Other than that, I'll have to wait until I find them again to tell you more :-)

I've got two radio options for this project right now, a Radio Shack HTX-242 and an Icom IC-2350. Neither have data ports, so the connection will be via RJ-45 mic jack and external speaker jacks.

I found some info on using the CM108 devices. I just have to find the ones I have to figure out if they will work.

Thanks,
Michael WA7SKG



David Ranch wrote on 9/7/23 8:32 AM:

Hello Michael,

First, the audio interface. This is a no budget setup so something like Signalink is out of the question. I've got a couple cheap USB audio interfaces that have mic in and speaker out jacks. Will those work with direwolf?
Can you give us some details of these "cheap devices"?? If they are what I think they are, they are CM108-based sound devices and should work for audio AND PTT with the addition of a few simple electronic components and some soldering.

Second is PTT. The Quadra has no I/O pins or serial port to trigger the PTT. The radio does not have VOX, which I would not use anyway.
Can you tell us which radio you're planning on using?

Next, is direwolf usable with other digital modes than packet/APRS, like fldigi or WSJT-X?
Direwolf only does AX.25 packet radio, AIS reception, and some DTMF stuff.? Fldigi, WSJT-X, etc are all entirely different programs supporting very different digital? modes.
--David
KI6ZHD

1 - 5 of 5