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AJ-8718-19/FE HF RECEIVER
INSTALLATION AND OPERATION
The following procedure restores a previously locked out sector to establish
a two sector scan.
Example 20 shows a typical scan sector restoration command.
o
Return Previously Locked Out Sector - Procedure
1)
Enter designated sector channel number on keypad (17
or 18 for Sector A, 19 or 20 for Sector B).
2)
Terminate command by pressing LOCK OUT termination
switch
twice.
Example 20:
Return previously locked out Sector B.
[2]
[0]
(1)
Data entry; "20" displayed in
FREQUENCY/MHZ display window.
[LOCKOUT] [LOCKOUT]
(2)
Termination command; Sector B
returned to the scan.
Sector lockout and sector return commands may be made at any time.
If a
sector lockout command is made while the receiver is scanning the designated lockout
sector, the scan will continue until the sector's f frequency is reached.
At that
time, the lockout command will take effect.
2.4.6.3
Sector Scan Receiver Register Data
The receiver register parameters (except for RF tuned frequency) should be
set prior to initiating a sector scan.
This may be done manually, or by recalling
receiver register data previously stored in any of the 99 memory channels.
The
procedures in the following paragraphs can be used to initially a single sector scan or
a two sector scan.
If the microprocessor receives a sector scan command and the
other sector is not locked out, the receiver first scans the desired sector and then
scans the other sector.
2.4.6.3.1
Sector Scan/Receiver Register Data Source - Manual
The following procedure manually sets the receiver register parameters, and
then initiates a sector scan.
Example 21 shows a typical sector scan command
sequence.
o
Sector Scan Command - Procedure 1
1)
Set receiver register parameters as desired.
2)
Enter designated channel number (17 for Sector A, 19
for Sector B) on keypad.
3)
Terminate command
by
pressing
AUTO SCAN
termination switch.
2-29
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