Re: Looking for PSK31/Other Digital Pipe
Hi Benjamin,
>>>>> On Sat, 26 Apr 2008 21:23:13 -0400, Benjamin Seidenberg <benjamin@debian.org> said:
> [Please CC me, I'm not on debian-hams!]
> I was wondering if someone could point me in the right direction for
> some software, I wasn't having much luck using debtags.
> I'm looking for either a PSK31 Library or a program that I can use as a
> pipe to do PSK31 I/O. My end goal is an acoustic modem for an underwater
> robot, using some kind of radio-based digital encoding. I was hoping I
> could find something where I could pipe input/output on the server side
> and use a standard PSK31 terminal on the other end to start testing.
> Can anyone point me at anything like this? I'd settle for a library to
> do the text<->audio translations.
What a great opportunity for you to start such a project! You have an
itch to scratch, and there are existing implementations of psk31 and
many other modems in gmfsk and fldigi :-)
To answer your question: fldigi has a POSIX message queue interface that
can probably do what you want. I'm not sure if this interface is
documented anywhere, but I know that it's used by flarq and, probably,
pskmail.
Of course, fldigi isn't an easily embeddable text<->psk31
translator. Take a look at the Java-based znudigi by Leigh, WA5ZNU:
http://wa5znu.org/2008/01/znudigi-rpsk/
This may be axactly what you're looking for. Unfortunately, I seem to
recall that it's receive-only at the moment. Maybe you can motivate
Leigh to complete the other half :-)
73,
Stelios, M0GLD.
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