About Protection Indications - Icom IC-7800 Instruction Manual

13
MAINTENANCE

■ About protection indications

Check the temperature
13-8
The IC-7800 has a 2-step protection function to protect
the power amplifiers as follow.
The protector detects the power amplifier temperature
and activates when the temperature becomes ex-
tremely high.
• Power down transmission
Reduces the transmit output power to 100 W.
"LMT" appears beside the transmit indicator during
transmit.
• Transmission inhibit
Deactivate the transmitter.
The transmit indicator is displayed in gray during
transmit.
When the protector is activated, wait until the power
amplifier cools down using the transceiver stand-by
condition.
NOTE: DO NOT turn the transceiver power OFF.
The internal cooling fan does not function, so it will
take longer to cool down.
The power amplifier temperature can be confirmed in
multi-function meter, TEMP gauge.