Table of Contents
Advertisement
WJ-8718A/MFP
INSTALLATION AND OPERATION
The
*
key is also used to clear the contents of the numbered memory channels. To
perform this function, the activation of the
*
key must be preceded by entry of 9, 9, 9 on the
general purpose keypad.
2.4.4.7.2
lOOth
Memory Channel
A 100th memory channel needs no keypad entry to be addressed. The channel is
accessed by engaging the STORE or RECALL switches only (no numbered address). The MEM
ADRS display goes blank· to indicate the 100th channel access.
The 100th memory channel
provides the operator with a rapid access memory channel.
2.4.4.7.3
Scan Mode
The MFP memory scan capability allows the receiver to sequentially scan a
selected group of memory channels. The memory locations are pre-loaded with receiver data
(see paragraph 2.4.4.7.1).
During scan operation, the stored parameters of each memory channel are
automatically recalled and transferred to the receiver.
As each channel is recalled, the
received signal strength is compared to a selected threshold level stored in that channel. When
a channel is located where signal strength equals or exce·eds the threshold level, the scanning
operation stops for a selected dwell time, and then restarts automatically.
Pressing AUTa SCAN initiates a sequential scan of the memory channels. If none
of the memory channels are locked out of the scan, the receiver scans through all channels
except those reserved for frequency sector scan data storage (channels 87 through 99).
To omit a memory channel from the scan, enter the memory address on the keypad,
then press the LOCK OUT key.
To remove a group of locations, enter the first and last
numbers of the group on the keypad, separated by a decimal point.
To restore a channel or
channels, use the same procedure, except press LOCK OUT twice.
2.4.4.7.4
Signal Level Threshold
The threshold level is a level selected for scan modes, which is compared to signal
strength.
The comparison determines whether a signal is strong enough to be monitored.
Threshold level is selectable from 0 to 9. To establish threshold level, the number is entered on
the keypad and terminated with THRS. The threshold level will be displayed in the LSD of the
BFa OFS/THRS LVL display. Threshold level must be selected and stored independently in each
memory channel.
2.4.4.7.5
Dwell Time
If AUTO SCAN mode is to be utilized, a dwell time must be selected. Dwell time
is selectable from 0.1 to 8 seconds. A zero entry to the keypad selects 0.1 seconds, a 1 selects
1 second, a 2 selects 2 seconds, etc.
The desired number is entered on the keypad and
terminated with the DWELL push button. The selected dwell time is automatically transferred
to each memory channel.
If dwell time is not selected, the 0.1 second dwell time will be
assumed. In automatic scan mode, the pre-loaded memory channels are sequentially scanned
2-11
Advertisement
Chapters
Table of Contents
