MULTIMODE Notes/Links/Diagrams

MixW - program for running PSK31, RTTY, packet and others (shareware - expires in 15 days requiring registration).

PSK31 - winpskse - program for running PSK31 (freeware).

Simple PTT - To allow the computer to key the radio. Ron - N4XQN

An interface to isolate the audio in the PC from the radio. This is the interface I used in Costa Rica.

Another keying interface. This is the one I used in Costa Rica.

A keying interface using an opto isolator to completely isolate the radio from the computer

DB-25 pin DB-25 pin DB-9 pin DB-9 pin 2 TxD 3 RxD 3 TxD 2 RxD 3 RxD 2 TxD 2 RxD 3 TxD 4 RTS 5 CTS 7 RTS 8 CTS 5 CTS 4 RTS 8 CTS 7 RTS 6 DSR 20 DTR 6 DSR 4 DTR 7 GND 7 GND 5 GND 5 GND 20 DTR 6 DSR 4 DTR 6 DSR

Null modem (crossover cable) for connecting two serial devices in various applications. (This kind of cable is used for such things as networking CT Log)

Last update November 20, 2006