[ao16aprs] Re: AO-16/APRS planning

["Schayk A.H. van" <A.H.Schayk@arcadis.nl>]

Hi bob

I have a 4) for you

take a linux computer and hook up a psk tnc to one com port and a 1k2 tnc to
another
put them both in kiss mode and attach them as you would any other tnc for
"normal" operation
using the program rxecho you can sendout all packets that come in on the sat
and have a wide as next digi on the aprs channel

i have tried this with a 1k2 tnc and a 9k6 tnc and it works great

73 de Andre PE1RDW

> -----Oorspronkelijk bericht-----
> Van:	Bob Bruninga [SMTP:bruninga@nadn.navy.mil]
> Verzonden:	dinsdag 31 augustus 1999 4:13
> Aan:	TAPR AO-16 APRS Special Interest Group
> Onderwerp:	[ao16aprs] Re: AO-16/APRS planning
> 
> How do we get the AO-16 packets over to the 144.39 network or to the
> internet APRServe?  Several methods.  None trivial.
> 
> 1) At my old fashiond work QTH, we have 9600 baud old dumb-terminal
> network which can establish a TCPIP connection to APRServe.  ALl I do is
> use dumb terminal to establish connection and then connect output of my
> TNC/PSK1 modem directly to this serial port.  Most of you cannot do this
> since you use more modern ISP's.
> 
> 2) Let the TNC digipeat.  This can work if you are using an external PSK
> modem connected to your TNC modem header.  The packet will be received via
> PSK and the TNC will digipeat it.  But if you jumper the modem disconnect
> header so that the TNC can still transmit AFSK instead of manchester, then
> just connect the original TNC output to any 2m radio on 144.39 and let it
> go out to the terrestrial network.  
> 
> I doubt this will work with all-in-one modems unless you can select PSK on
> downlink and separately select AFSK on the send side independently????
> Anyone know ????
> 
> 3) Software!  SOmeone write a program to take monitored packets and then
> turn them around and send them out your terrestrial TNC and 144.39 radio.
> The ONLY thing required is to insert the "}" at the start of each packet.
> THis is the APRS 3rd party protocol.  Trivial to do, but takes a program
> to do it.  I wrote such a thing for DOS, but everyone is using WISP...
> 
> 4) ANy other ideas???
> 
> 
> 
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