LOCAL OPERATION
WJ-8711A DIGITAL HF RECEIVER
3-26
3.2.42
THE POWER SWITCH
The POWER switch is a rocker-type switch located on the top left-hand corner of the front
panel. This switch is used to turn the receiver on and off. When the bottom-half of the switch is pushed in,
the receiver is off. Pushing in on the top-half of the switch turns the unit on and starts the power-up and
initialization routine (refer to
paragraph 3.3
).
3.3
TURNING ON THE RECEIVER
The receiver is turned on when the top-half of the POWER switch is pushed in. From the off
state, turning the receiver on causes it to go into its power-up and initialization routine. During initialization,
the receiver lights all front panel lights with the exception of the Memory/Scan display. This display, shown
below, provides the unit (WJ8711A) and the software version (Vx.xx). The Memory/Scan display performs
this in receivers with internal control software versions 1.40 and later only.
MEMORY/SCAN
W J 8 7 1 1A V x. xx
After approximately one second, initialization is complete, and the receiver automatically
returns to the last selected mode, displaying the last set parameters.
The WJ-8711A is equipped with battery backed-up memory. When the receiver is turned off,
all current receiver parameters (including channel set-ups) are saved in memory. When the receiver is
powered up, the receiver parameters that were set and displayed, prior to the receiver being turned off, are
reset in the receiver and redisplayed on the displays as applicable.
3.3.1
PERFORMING A COLD START AT POWER-UP
NOTE
When a cold start is performed at power-up, all setups in
memory are cleared. All scan setups, memory channel
contents, and receiver parameters are reset to their default
conditions.
The receiver can be cycled through a cold start at power-up. A cold start provides a means of
clearing the receiver of all previous settings saved in memory and possible front panel errors. This is
performed by pressing and holding the CE (clear entry) key while turning on the receiver, then releasing the
CE key. At cold start power-up the MEMORY SCAN display shows "COLD START" for approximately two
seconds while clearing memory then goes through its normal initialization routine. When the power-up
routine is completed, the auxiliary parameter displays and the tuned frequency window displays their default
settings.
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...
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Page 241: ...FP i FOLDOUTS Courtesy of http BlackRadios terryo org...
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