Furuno FM-8800, Service Manual

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4.4 System Setting: Option Menu
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4.4.7 SP MUTE
This setting is effective in FM-8800D. This sets up whether you want the Transceiver
unit’s audio output from speaker to go off or not during transmission through Duplex
channel. This function is in relation with the setup by [SYSTEM] -> VOLUME -> OFF
HOOK SPKR.
Table 4.4.2 FM-8800D SP MUTE function
Setting for SP MUTE
ON OFF
ON SP (No Output)
SP (Output)
Transmission by
DUP CH
OFF HOOK
SPKR
OFF SP (No Output) SP (No Output)
ON SP (No Output) SP (No Output) Transmission by
SIMP CH
OFF HOOK
SPKR
OFF SP (No Output) SP (No Output)
You have to set OFF HOOK SPKR to ON and SP MUTE to OFF if you want
Transceiver unit’s audio output from speaker to go off during a transmission through
Duplex channel.
Procedure
1. Set [MENU] -> VOLUME -> OFF HOOK SPKR to ON.
2. Set [MENU] -> SYSTEM ->SP MUTE to OFF.
4.4.8 TIMEOUT TIMER
This is a setup that automatically stops the transmission after it was continuously sent
out for longer than 5 minutes. This function is effective in USA channel.
Procedure
1. Select [MENU] -> SYSTEM -> TIMEOUT TIMER.
2. Bring a cursor onto a mode to set up and press [ENT] key to set up ON/OFF.