Hi Steve,
I configured direwolf to use DINAH as a sound device @ 1200 baud when I
initially received the kit. It was straight forward and easy to do.
I have been wanting a path to programatically switch between 1200 & 9600
baud packet for a while. I demonstrated how to do that manually, using
scripts running on a Raspberry Pi at the 'APRS Summer Gathering' (North
Bend, WA) a couple of years ago. Recently I wrote some scripts to
remotely change the baud rate of a gateway using Touch Tones. I just
finished that project
and will be updating the README some time today. I am now focused on
using PulseAudio and virtual sound devices to run both the 1200 & 9600
direwolf modems on the same audio channel. The hard part is virtualizing
the PTT method. I am fairly certain I can get this to work.
Both the Touch Tone method & the virtual sound device method could work
on DINAH after I make a cable that routes the radio discriminator output
(mDin 6 pin 4) to the DINAH input (mDin 6 pin 5)
There is a requirement that a 'good' digital capable radio must be
used. I am currently using a Kenwood TM-V71A. 1200 baud packet works
quite well using the radio's discriminator output which is usually
labeled 9600 baud. This means that when switching baud rates everything
is done in software and radio configuration does not need changing.
This is a long way around to saying YES to:
Would these changes be useful in order to use DINAH for DireWolf?
However, I think you might wait a bit until I make a cable that routes
mDin 6 pin 5 (1200) from DINAH to mDin 6 pin 4 (9600) on the radio to
get confirming data that this will work for the DIANH audio device.
I could also add another jumper that could be cut (normally connected)
so that COS could be disconnected
It is my experience that the Yaesu multi band radios (FT817/FT857/FT897)
do something different with the mDin6 pin 6 line (squelch) then iCom or
Kenwood radios. Removing mDin6 pin 6 fixed the problem with the NW
Digital Radio DRAWS audio codec device ()
/Basil n7nix
Alexander Moore <kitsforhams@...> writes:
JP1 was intended to either have a way to bring CTCSS into DINAH using
a custom cable or supply 5 VDC to something that DINAH was plugged
into. I could easily modify the layout so that JP1 selected 1200 or
9600 baud (normally connected for 1200 baud). I would then also delete
D2 and C10. I could also add another jumper that could be cut
(normally connected) so that COS could be disconnected. Here is what I
propose:
Would these changes be useful in order to use DINAH for DireWolf?
Steve - N8AR
Basil Gunn