PRO-90 300-Channel Trunk Tracker Scanner
(200-0520)                 Special Features           Faxback Doc. # 45396

Delay

Many agencies use a two-way radio system that might have a period of 2 or
more seconds between a query and a reply. To keep from missing a reply, you
can program a 2-second delay into any channel or frequency. The scanner con-
tinues to monitor the frequency for 2 seconds after the transmission stops
before resuming scanning or searching.

To program a 2-second delay:

  If the scanner is scanning channel-storage banks and stops on an active
  channel where you want to store a delay, quickly press DLY before it
  continues scanning again.  DLY appears.

  If the desired channel is not selected, manually select the channel,
  then press DLY.  DLY appears.

  If the scanner is scanning service banks, press DLY while the scanner is
  scanning. DLY appears and the scanner automatically adds a 2-second delay
  to every transmission it stops on in that band.

To turn off the 2-second delay, press DLY while the scanner is monitoring
the channel or scanning the service banks. DLY disappears from the display.

Turning Channel-Storage Banks On and Off

You can turn each channel-storage bank on and off. When you turn off a bank,
the scanner does not scan any of the 30 channels in that bank.

While scanning, press the number key that corresponds to the bank you want
to turn on or off.  If the bar under the bank number is on, the bank is
turned on and the scanner scans all channels within that banks that are not
locked out. If the bar is off, the scanner does not scan any of the channels
within that bank.

Notes: You can manually select any channel within a bank, even if that bank
       is turned off.

       You cannot turn off all banks.  One bank is always active.


Locking Out Channels and Frequencies

You can scan existing channels or search frequencies faster by locking out
channels or frequencies that have a continuous transmission, such as a
weather channel.

Note:  If you just want to skip over a lengthy transmission (such as a
       modem signal), see "Skipping Data Signals" below.

Locking Out Channels

To lock out a channel while scanning, press L/O when the scanner stops on
the channel.  To lock out a channel manually, manually select the channel
and hold down L/O until L/O appears.

Notes:  You can still manually select locked-out channels.

        To remove the lockout from a channel, manually select the channel
        and hold down L/O until L/O disappears from the display.

        To unlock all channels in the banks that are turned on, press
        MANUAL to stop scanning, then hold down L/O until the scanner
        beeps twice.

Locking Out Frequencies

To lock out a frequency during a limit search or service bank scan, press
L/O when the scanner stops on the frequency.  The scanner locks out the
frequency, then continues searching.  To lock out a frequency manually,
manually select the frequency and hold down L/O until L/O appears.

Notes: The scanner does not display locked-out frequencies during a search.

       You can lock out as many as 20 frequencies during a search.  If you
       try to lock out more than 20 frequencies, the first locked-out freq-
       uency is automatically unlocked.

Follow these steps to remove the lockout from a frequency.

1.  During a search, select the frequency you want to remove the lockout
    from.

2.  Press L/O.  L/O disappears from the display.

To remove the lockout from all frequencies, while searching, hold down L/O
until the scanner beeps twice (about 2 seconds).

Priority

The priority feature lets you scan through channels and still not miss
important or interesting calls on specific channels.  You can program one
stored channel in each bank as a priority channel (for up to a total of 10
stored channels). As the scanner scans the bank, if the priority feature is
turned on, the scanner checks the priority channels for activity every 2
seconds.

The scanner automatically designates each bank's first channel as its
priority channel.  Follow these steps to select a different channel as the
priority channel for a bank.

1.  Press MANUAL.

2.  Enter the channel number you want to select as the priority channel,
    then press MANUAL again.

3.  Hold down PRI until the scanner beeps twice, P appears to the left
    of the channel number.

4.  Repeat Steps 2-3 for the channel in each bank you want to program as a
    priority channel.

To turn on the priority feature, press PRI during scanning.  PRI appears.
Every 2 seconds the scanner checks the priority channel in each bank that
is turned on, starting from the lowest to the highest-numbered priority
channel.

To turn off the priority feature, press PRI.  PRI disappears.

Notes: The priority feature must be turned off to use the data skip feature
       (see "Skipping Data Signals" below).

       You can lock out priority channels.  If you lock out all priority
       channels, P ch Loc Out appears when you turn on the priority feature.

Using The Keylock

Once you program your scanner, you can protect it from accidental program
changes by turning on the keylock feature.  When locked, the only controls
that operate are SCAN, MANUAL, LOCK/(symbol), VOLUME/OFF, and SQUELCH.

Note:  The keylock does not prevent the scanner from scanning channels.

To turn on the keylock, hold down LOCK/(symbol) until (key symbol) appears.
To turn it off, hold down LOCK/(symbol) until (key symbol) disappears.

Using The Display Backlight

You can turn on the display backlight for easy viewing at night.  Press
LOCK/(symbol) to turn on the display backlight for 15 seconds.  To turn off
the backlight before 15 seconds elapse, press the button again.

Changing Search Speeds

The PRO-90 has two search speeds for a limit search.

Normal Search                   HyperSearch

100 steps/seconds               300 steps/second

To switch between normal and HyperSearch speeds, during a limit search,
press SPEED/PRI.  SRCH flashes during HyperSearch.

Note:  You can use HyperSearch only in the 5 kHz step bands (29-54 MHz and
       137-174 MHz).

Battery Save

To save battery power when a channel is manually selected, the scanner's
battery save function automatically sets the scanner to a standby mode if
the scanner does not receive any signals for more than 1 minute. During the
standby mode, the scanner repeatedly turns off the internal power for 1
second then turns on the internal power for about 1/3 of a second to check
for a transmission.

Note:  The scanner's battery save function does not work if the priority
       function is on, even if a channel is manually selected.

Skipping Data Signals

You can set the scanner so it skips nonmodulated or data signals (such as
modem transmissions) during a search.

Note:  This feature does not work in the air band.

To turn on the data skip feature, be sure the priority feature is turned
off (see "Priority" above), then press DATA.  DATA appears.  To turn off
the feature, press DATA again.  DATA disappears.


(LB/EB 11/14/97)