SYMBOL Initial Cond DISCRIPTION/USE
A Connected:

Cut here to apply the voice signal from microphone to optional unit on J1.
It is for using UT-109/UT-110.

 

B Disconnected   

Solder here, the de-emphasis filter is applied to AFOUT signal from J1 (Using UT-109/UT-110).

 

C Connected

Cut here to control the PTT signal from optional unit installed on J1.

 

D Disconnected

Solder here, the de-emphasis filter is not applied to AFOUT signal from J1 (except using UT-109/UT-110).

 

F Connected

Cut here to apply the DISC sinal from demodulator to optional unit on J1.
It is for using UT-109/UT-110.

 

Q Connected

Cut here disconnect CTS signal from the radio. It is for non hand-shaking with the radio and PC at RS-232c serial connection. [R-pattern] must solder.

 

R Disconnected Solder here making RTS to CTS connection. It is for non hand-shaking with the radio and PC at RS-232c serial connection. [Q-pattern] must cut.