[drats_users] Interfacing ICOM RP2C

[Jann Traschewski]

Hi,

I'd like to use D-RATS at my repeaters. What information does D-RATS need to
work properly for users on the repeater? I guess the plain serial data from
the DV stream will be enough on the RX side? The RX stream is already
available by TCP using "dstarmon" on a gateway.

What about the TX side? I assume D-RATS will set URCALL on a normal ICOM
radio using the serial line? On a standard ICOM G2 gateway the "dsgwd"
process will interface the RP2C. D-RATS could inject data using UDP Port
40000 on localhost (the common way). The first 5 "header" frames are with
length of 56 Byte containing the URCALL,RPT1,RPT2,MYCALL settings. Then
digital voice will follow with 27 Byte packets (which could be filled with a
precoded audio message like "D-RATS communication" :D) containing the serial
data bits as well. There are several open source tools with the information
how to construct the frames. I can assist with testing infrastructure.

If this is to much work, there might be some guys building an interface
between D-RATS and dsgwd.
73,
Jann


--
Jann Traschewski, Drosselstr.1, D-90513 Zirndorf, Germany
Tel.: +49-911-696971, Mobile: +49-170-1045937, E-Mail: jann at gmx.de
Ham: DG8NGN / DB0VOX, http://www.qsl.net/dg8ngn, ICQ UIN: 4130182