Is something required in the text status field for the parrot repeater to
operate? If not, there should be...
7177 can get a lot of traffic on Sunday mornings after the FreeDV
broadcast, and having a parrot repeater chiming in could get a bit
difficult!
73
Mark VK5QI
On Tue, Jul 17, 2018 at 9:53 PM, Alan Beard <bear...@unixservice.com.au>
wrote:
> Hi all,
>
> With the lack of signals on 14236KHz I've moved to 7177 LSB
> and Hil VK2AZ has proved it working though he gets only three seconds of
> his voice coming back, then garbled stuff.
>
> This code, hacked from "freebeacon.c" takes the generated "from_radio"
> file, runs this script:
> #!/bin/bash
> # Process recorded audio, called with
> # $1 recFileFromRadioName, $2 recFileDecDataName, $3 recFileToRadioName
> # and $4 recFileDecAudioName
> ~/bin/ofdm_demod $1 $2 --ldpc --interleave 1 > /dev/null 2>&1
>
> ~/bin/ofdm_mod $2 - --ldpc --interleave 1 > $3y 2>/dev/null
> cat $3y | raw2wav16 $3 > /dev/null 2>&1
> aplay -D rconvUSB txaudio.wav $3 > /dev/null 2>&1
> sleep 9
> #mv $1 $2 $3 $4 done/. > /dev/null 2>&1
> echo `date` " Play $1 $2 $3 $4" >> ~/parrot/txlog
> stty 9600 < /dev/ttyUSB0
> stty 0 < /dev/ttyUSB0
> ---------------- end of script ---------
>
> For those looking at the script, the last line sets DTR and RTS low,
> a quirk, a deliberate quirk from the really early days of unix.
>
> Another quirk: With Fedora 28 (+ updates) , two processes cannot open the
> one sound device so I have to use a second sound card.
>
> System: Dual core Pi, 1Gb ram, 120Gb SSD on SATA, Fedora 28 ARM.
> (Banana Pi original)
>
>
>
>
> On Tue, 17 Jul 2018 10:15:33 +1000, Alan Beard wrote
> > Hi all,
> >
> > In developing code for a repeater (parrot for now) that will "blow away"
> > the performance of our current FM repeaters, using SSB transceivers
> > or SDR, a "standard" mode would be good.
> >
> > We all have a "love-hate" relationship to AMBExxx but, it being
> > stable, we have been able to develop repeaters for modes P25, D-Star,
> > Fusion, DMR and NXDN. This gets us all involved in this new
> > technology in both the software and RF areas. A good thing.
> >
> > So, not to be pushy, do we have any idea when these new modes will
> > be in an app to use them over air? When will the code be ready for
> > me to use in my parrot repeater?
> >
> > (full duplex isn't hard in software but is hard at the RF end,
> > a transmitter running yet not interfering with the receiver)
> >
> > Alan VK2ZIW
> >
> > Evil flourishes when good men do nothing.
> > Consider the Christmas child.
> > ------------------------------------------------------------
> ---------------
> > Alan Beard Unix Support Technician from 1984 to today
> > 70 Wedmore Rd. Sun Solaris, AIX, HP/UX, Linux, SCO, MIPS
> > Emu Heights N.S.W. 2750 Routers, terminal servers, printers,
> > terminals etc.. +61 2 47353013 (h) Support Programming, shell
> > scripting, "C", assembler 0414 353013 (mobile) After uni,
> > electronics tech
> >
> > ------------------------------------------------------------
> ------------------
> > Check out the vibrant tech community on one of the world's most
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>
>
> Alan
>
> Evil flourishes when good men do nothing.
> Consider the Christmas child.
> ------------------------------------------------------------
> ---------------
> Alan Beard Unix Support Technician from 1984 to today
> 70 Wedmore Rd. Sun Solaris, AIX, HP/UX, Linux, SCO, MIPS
> Emu Heights N.S.W. 2750 Routers, terminal servers, printers, terminals
> etc..
> +61 2 47353013 (h) Support Programming, shell scripting, "C",
> assembler
> 0414 353013 (mobile) After uni, electronics tech
>
>
> ------------------------------------------------------------
> ------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> Freetel-codec2 mailing list
> Freetel-codec2@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/freetel-codec2
>
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