WJ-8611 DIGITAL VHF/UHF RECEIVER
3-8 LOCAL
OPERATION
STEP TUNE/TUNE LOCK
CONTROL
KEY
The STEP TUNE / TUNE LOCK control key is a dual function control,
with the numeric keypad’s SHIFT key determining the key function.
When the SHIFT key is pressed at the keypad (SHIFT LED illuminated),
the TUNE LOCK function is selectable. When the TUNE LOCK key is
pressed, an LED to the right of the key illuminates, indicating that the
tuning wheel is disabled. Rotation of the tuning wheel will have no affect
on the receiver’s tuned frequency. This function affects the tuning wheel
only. Direct entry of frequencies from the numeric keypad may still be
performed. The tune lock function may be disabled by pressing the left (<)
or right (>) arrows on the keypad. The SHIFT LED must be extinguished
before the left and right arrow keys are enabled. This may be
accomplished by pressing the SHIFT key to extinguish the LED.
When the receiver front panel is in the unshifted mode (SHIFT LED
extinguished), the STEP TUNE function is selectable. Pressing the STEP
TUNE key illuminates the key’s LED and replaces a parameter display
with a STEP TUNE SIZE display. When in this mode, the size of the
tuning increments may be set to any value ranging from 000.01 kHz
(10 Hz) to 100.00 kHz, using direct keypad entry or by using the EDIT
knob. The resolution of the EDIT knob tuning is set by pressing the STEP
TUNE key as required to place the flashing digit on the digit representing
the desired tuning resolution (.01 kHz to 100.00 kHz resolution). Rotation
of the EDIT knob sets the step size to the desired value. Once the step size
is set, rotation of the tuning wheel changes the receiver’s tuned frequency
by the programmed step tune size. If the receiver front panel is placed in
the shifted mode (SHIFT LED illuminated), the numeric keypad’s left (<)
and right (>) keys may also be used to step tune the receiver. When the
front panel is in the unshifted mode (SHIFT LED extinguished), pressing
the numeric keypad’s left (<) or right (>) keys disables the step tuning
mode and restores normal tuning.
3.2.9 NUMERIC KEYPAD
The numeric keypad, located in the center of the receiver front panel,
provides a means for direct entry of numeric parameters into the receiver.
The following entries may be performed using the numeric keypad:
•
Receiver Tuned Frequency, when terminated with the MHz key
•
BFO Offset Frequency, when terminated with the BFO key
•
Step Tune Size Frequency, when terminated with the STEP TUNE
key
Courtesy of http://BlackRadios.terryo.org
Summary of Contents for WJ-8611
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