[TenTec] CAT control of Argonaut II

[Bob Towers]

Many thanks to:

a) Joe, W2QID, for the tip on how to access and change the TX/RX address

b) to Paul, WD4EBR, at Ten-Tec for the default address (04h) and the 
note about the ICom35 command codes.

But I'm still having problems interfacing the PC to the Argonaut II. The protocols are 1200 8 N 1. There seems to be some
doubt about the connections between the PC COM1 DB9 connector and  the DB25 connector on the Argonaut II. Currently they are:

        DB9                     DB25

        pin 2           to      pin 3
        pin 3           to      pin 2
        pin 5           to      pin 7 (earth)

Which is not what the manual says! The DB9_2 to DB25_2 and DB9_3 to DB25_3 connections don't work at all ie no codes going out from the PC and no acks back. 

I've tried a cable with:

a) no handshaking

b) loopback handshaking (RTS-CTS and DSR-DTR on the DB9)

c) full handshaking (both CTS/RTS and DSR/DTR)

but all I get is an acknowledgement (FDh) back from the Argo II, irrespective of which control codes I send.

I'm using the 305 interface between the PC and the TX/RX. The PC COM1 port protocols are 1200 8 N 1. The TX/RX address is set to 04h, the same as the PC address. I use Ham Radio Deluxe Tester set for either Ten-Tec or ICom 735. This gives me a listing of all the codes going out from the PC and the codes coming back from the TX/RX.

Any help would be much appreciated.

73

Bob Towers
2M0KDZ

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