Bendix/King KTR 909A Panduan Pilot - Halaman 11

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Remote Channel Request

This switch, when momentarily pressed, will perform one of two functions. If the

KFS 599A is in the manual frequency mode, it will change to the preset channel

mode. If the KFS 599A is already in the preset channel mode, it will change the

channel to the next higher programmed channel.

Program Disable

This line will disable and enable the programming function of the KFS 599A. The

Program Disable line is read only during the power-on sequence; any changes

made after power-on are not read.

ADF Enable

This line will enable and disable the ADF mode of the KFS 599A. The ADF

Enable line is read only during the power-on sequence; any changes made after

power-on are not read.

Semi-Duplex Inhibit

This line will disable and enable the use of the semi-duplex feature of the KFS

599A. Any channels programmed as semi-duplex will transmit on the receive fre-

quencies while semi-duplex is disabled. The Semi-Duplex Inhibit line is read only

during the power-on sequence; any changes made after power-on are not read.

Remote Guard Select

While in the Main mode, pressing this switch will select the guard channel.

Pressing this switch while in the Guard mode will select the last active Main fre-

quency.

Faults and Tests

Transmission Time-out Fault

If the transmitter is active for more than 90 seconds, a transmit time-out fault

occurs. This is indicated by the flashing of every illuminated segment of the dis-

play. The transmitter will go inactive until the fault is found or an interruption

occurs in the DC power supply. In most cases, the transmission time-out is

caused by the microphone PTT button being stuck or if a transmission exceeds 90

seconds (including 1kHz Tone Test).

1kHz Tone Test

Pressing the PUSH TONE button modulates the signal with a 1kHz tone. This ver-

ifies the operation of the transmitter and the audio system. This feature is disabled

while the unit is in the BOTH receive mode.