WJ-8711A DIGITAL HF RECEIVER
LOCAL OPERATION
3-7
3.2.9
THE STEP TUNE KEY
The STEP TUNE key is used to place the front panel in the Step Tune mode. When in the
Step Tune mode, the tuned frequency can be adjusted in steps that correspond to the step size previously set
with the STEP SIZE key and indicated in the Memory/Scan display. (See
paragraph 3.2.22
for details on
setting the step size with the STEP SIZE key.)
When the Step Tune mode is entered, the LED in the STEP TUNE key is lit. If the TUNE
LOCK key LED is lit when the Step Tune mode is entered, it is turned off. If the tuned frequency display has
a highlighted digit (indicating decade tuning) when the Step Tune Mode is entered, the highlighting of that
digit is discontinued. Also, when the Step Tune mode is entered, the STEP SIZE key LED in the
Memory/Scan section is lit. The Memory/Scan display is overwritten and appears as follows:
MEMORY/SCAN
S T E P x x . x x x k
where xx.xxx is the step size parameter value currently in effect. The most significant digit of this display is
highlighted, when the Step Tune mode is entered, indicating that it can be adjusted. Therefore, entering the
Step Tune mode automatically selects the step size parameter entry mode.
3.2.10
THE AUXILIARY PARAMETER DISPLAYS
The Auxiliary Parameter section of the front panel contains two, 12-character alphanumeric
displays. The upper display normally shows, from left to right, the gain control mode, the beat frequency
oscillator (BFO) frequency, and the noise blanking interval. The lower display normally shows, from left to
right, the IF bandwidth, the detection mode, and the squelch level.
3.2.11
THE IF BW KEY AND LED
The IF BW key is located below the lower display in the Auxiliary Parameter section. This
key serves two functions: IF bandwidth select and IF bandwidth enter. IF bandwidth select identifies, from
the 66 available IF bandwidth filters, those to be included as available filter choices. The IF bandwidth enter
function enters the desired IF bandwidth for the receiver.
Courtesy of http://BlackRadios.terryo.org
Summary of Contents for WJ-8711A
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Page 19: ...1 i SECTION I GENERAL DESCRIPTION Courtesy of http BlackRadios terryo org...
Page 33: ...2 i SECTION II INSTALLATION Courtesy of http BlackRadios terryo org...
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Page 47: ...3 i SECTION III LOCAL OPERATION Courtesy of http BlackRadios terryo org...
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Page 93: ...4 i SECTION IV RS 232 REMOTE OPERATION Courtesy of http BlackRadios terryo org...
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Page 123: ...5 i SECTION V CSMA REMOTE CONTROL Courtesy of http BlackRadios terryo org...
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Page 143: ...6 i SECTION VI CIRCUIT DESCRIPTION Courtesy of http BlackRadios terryo org...
Page 157: ...7 i SECTION VII MAINTENANCE Courtesy of http BlackRadios terryo org...
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Page 241: ...FP i FOLDOUTS Courtesy of http BlackRadios terryo org...
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