Hi Everyone,
I just attempted to key the transmitter from the same serial port that I
use to control the rig using the circuit in the manual. This keyed the rig
just fine but I lost control of the TS-440. TR would read the freq from
the radio on occasion. I'm using the MAX 232 interface described in the
ARRL Handbook, It has pins 1&7 (DB25) tied together to ground. I used this
same ground for the keying circuit. What do I need to change? I removed
the keying circuit and rig control is back to normal.
73...Jim Walter, wb0ola@compuserve.com
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