Ham Radio question

Hound-Dog

I have received a black box which contains a TNC220+, and several PCB's which appear to form a transmitter, and a PCB receiver.
The only id I can see is DSE ZA-1480
Can anyone point me in the direction of schematics for these devices?

CuriousOne

First result from google works....

KB3JJG

here
http://www.radio-active.net.au/web/ham/tnc/tnc220p.tif

I do not know that particular TNC, but generally they are not xmit/rec devices, they sit inline and encode/decode protocols like AX25 or APRS.

Bob Lawrence (VE1RLL)

Packet radio

http://en.wikipedia.org/wiki/Packet_radio


Probally a version of this: Pac-Comm Packet Radio 9600 Baud TNC-220

http://www.ebay.com.au/itm/Pac-Comm-Packet-Radio-9600-Baud-TNC-220-Adapter-Controller-Ham-Shortwave-Modem-/300928823532?pt=LH_DefaultDomain_0&nma=true&si=DysEAvjp17I%2FoVh%2F3EWaXgZf7VA%3D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557


I used to have a AEA pk232