LOCAL OPERATION
3-84
Tones ON/OFF control
When the RF DTMF ENCODER screen or the AF DTMF ENCODER screen is displayed, the tone is
turned
ON or OFF by the orange [ON/OFF] function key.
If the DTMF tone is
ON and the Tx TEST, Rx TEST, Dx TEST or AF TEST mode selected, the
DTMF tone will continue to be generated.
If the tones out routing has been set to give RF tones, these are provided by modulation generators
1 and 2. The legend
--Tones-- will be displayed against both MOD1 FREQ and MOD2 FREQ on
the
RECEIVER TEST or DUPLEX screens. If MOD1 or MOD2 is selected, the DTMF tones can be
controlled by repeated presses of the orange [ON/OFF] function key. If
MOD1 FREQ or MOD2
FREQ is selected, the DTMF tones are still controlled by the [ON/OFF] key, but if a frequency is
entered using the data keys or if the variable control is adjusted, the DTMF tones will cease. They
can then be re-started only when the
RF DTMF ENCODER screen or the AF DTMF ENCODER
screen is displayed.
If the tones out routing has been set to give AF tones, this is provided by audio generators 1 and 2.
The legend
--Tones-- will be displayed against both AF1 FREQ and AF2 FREQ on the
TRANSMITTER TEST, DUPLEX or AF TEST screens. If AF1 or AF2 is selected, the DTMF tones
can be controlled by repeated presses of the orange [ON/OFF] function key. If
AF1 FREQ or AF2
FREQ is selected, the DTMF tones are still controlled by the [ON/OFF] key, but if a frequency is
entered using the data keys or if the variable control is adjusted, the DTMF tones will cease. They
can then be re-started only when the
RF DTMF ENCODER screen or the AF DTMF ENCODER
screen is displayed.
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