ICOM-TNC

FROM:N6QOG 
SUBJECT:MFJ TNC to ICOM RADIOS


TNC                  ICOM 4 PIN

PIN 1                PIN 1
PIN 3                PIN 2
PIN 4                SPEAKER +
PIN 2                PIN 4



TNC                  ICOM 8 PIN

PIN 1                PIN 1
PIN 3                PIN 5
PIN 4                SPEAKER +
PIN 2                PIN 6,7



TNC                  ICOM HTs

PIN 1                Small Tip (*)
PIN 3                Small Tip (*)
PIN 4                Large Tip
PIN 2                Sleeves


(*)NOTE: Some Icom HTs key the trans-
         mitter by completing the
         ground connection on the
         microphone. If your HT is
         one that is noted above,
         consult a manual or the
         manufacturer.