Watkins-Johnson Company WJ-8718-19/FE Instruction Manual page 33

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INSTALLATION AND OPERATION WJ-8718-19/FE HF RECEIVER
2.4.2.7 BFO OFS/THRS LVL Display
This display is used to display the BFO. offset frequency in kHz when in
CW mode. This display is also used to display threshold level and dwell time.
2.4.2.8 Fault Indicators
The DATA fault indicator illuminates when incorrect data is transferred
during remote operation. The ENTRY fault indicator illuminates when an invalid entry
is attempted. The RCVR fault indicator illuminates when a receiver power supply or
LO fault is detected.
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2.4.2.9 Tuned Frequency Readout
This seven-digit readout displays the tuned frequency of the receiver. Each
digit is a seven-segment LED. The least-significant digit, at the far right, indicates
10's of Hz. Tuned frequency is displayed for both local and remote control of the
receiver.
2.4.2.10 Tune Switches
The TUNE switches in conjunction with the TUNE knob (see paragraph
2.4.2.11) are used to adjust the receiver tuned frequency. Tuning steps of 1 kHz, 100
Hz or 10 Hz are selected with the FAST, MED and SLOW switches.
2.4.2.11 Tune Knob
Rotating the knob clockwise increases tuned frequency; counterclockwise
rotation decreases tuned frequency. Continuing to tune past the end of the range
causes the receiver to step to the opposite end of the band and to continue tuning in
the same increasing or decreasing frequency direction. The receiver tunes from
00.00000 MHz to 99.99999 MHz, usable above 5 kHz.
2.4.2.12 General Purpose Keypad
The general purpose keypad permits direct entry of RF Frequency, BFO
Offset Frequency and numerical data input required during other control operations.
2.4.2.13 Memory Operations Switches
These switches are used during storage or recall of data stored in the 100
memory channels.
2.4.2.14 MEM APRS Display
This display indicates the channel address currently in used for storage or
recall of stored data.
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