Icom IC-M91D Instruction Manual page 76

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DSC OPERATION
D DSC Loop Test
The DSC loop test function sends transmit DSC signals to
the receive AF circuit to compare and check the TX and RX
signals at the AF level.
q Enter "DSC LOOP TEST" in the DSC Settings menu.
➪
❮MENU❯
(Push [MENU])
w Push [ENTER] to start the DSC loop test.
• Push [BACK] to cancel and return to the DSC Settings menu.
• When the transmit DSC and receive DSC signals are matched,
"OK" appears.
e
Push [EXIT] to return to the normal operating mode.
If "NG" appears in step w, either or both TX and RX DSC
circuits has a problem. In that case, you will have to send
the transceiver to your nearest dealer for repair.
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➪
❮DSC Settings❯ ❮DSC Loop Test❯
(Push [Y]/[Z], then push [ENTER].)
D Channel 70 Watch function
Select whether or not the transceiver monitors Channel 70.
q Enter "CH 70 Watch" in the DSC Settings menu.
➪
❮MENU❯ ❮DSC Settings❯
(Push [MENU]) (Push [Y]/[Z], then push [ENTER].)
w Push [] or [] to set the Channel 70 Watch function to
"OFF with Power Save," "OFF," "Busy" or "Standby," then
push [ENTER].
• Push [BACK] to cancel and return to the DSC Settings menu.
➪
❮CH 70 Watch❯
(default)
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