>>> Continued from previous message
   Delay
Let's take a hypothetical group ID of 2368. In TrunkTracker search
mode, as soon as this (or any) ID comes up active, you'll be able to
listen in on that talk group's conversation. In delay mode, after a
transmission ends, the scanner will hold that particular talk group ID
in the display for five seconds, waiting for a reply. Numerous other
groups on the system may be communicating, but TrunkTracker will be
looking at the data coming off the control channel for the delayed ID
to become active again. If the ID is not active within five seconds,
the 235 will return to trunk search or scan.
   Hold
Just as with HOLD in conventional scan mode, HOLD in trunking mode
allows you to sit on a conversation indefinitely. Rather than holding
on a frequency, however, you're holding on a group ID. This is where
the trunk tracking effect is particularly noticeable. You can sit and
hold on a group, such as EMS on-scene operations, and not hear any
other group on the system. No matter which frequency the EMS
conversation hops to, you'll follow. Again, frequencies become
as meaningless to the TrunkTracker user as they do to the actual system
user. It will appear as though EMS tactical has a frequency all to
itself.
Let's say you have your BC-235 with you and you suddenly see an
ambulance race down the street. You don't have the ambulance ID placed
into memory of any sort (SCAN LIST memory is described below), but you
know the ID for EMS is 2368. To place an ID into temporary memory,
users can follow these keystrokes: HOLD, ID (2368), HOLD. The HOLD icon
will flash and TrunkTracker will only listen for the activity of this
group.
   Channel Activity Indicators
When you think of conventional scanning, you think of a radio which
sequentially checks for activity on one memory channel after another.
If your scanner passes channels 1 through 14 during a scan and finds no
activity until channel 15, and you then begin to listen to the
activity on channel, or frequency, 15, you have no idea whether or not
there is now activity on channels 1 through 14 (with the exception of a
possibly priority check on channel 1).  With TrunkTracker, this concept
is turned on its ear. If you have the unit in HOLD, SCAN, or other
modes, TrunkTracker will display for you the actual activity of the
system. Here's how it works:
Every frequency you enter for a trunked system correlates to a
"channel activity" indicator.These small square icons in the BC-235
display are the same icons used to indicate which banks are active
during conventional scan, except there are double the number of icons
available (20) in the trunking mode. While frequencies become
meaningless once you begin trunking, the activity lights provide a
second-by-second snapshot of system activity by displaying active
frequencies viathe channel indicator icons. It's a kick to watch the
activity of a busy system as the lights flash on-and-off across the
screen. If you're holding on one ID, waiting for activity from that
group, you can see how much you're missing by watching the channel
indicators. This is a completely unique,new way to scan!
Note: If more than 20 channels are programmed for a particular trunked
system, for example 29, then activity on the 21st through 29th channels
are shown on activity lights 1 through9. There is no way to discern
whether it is channel 1 or 21, or both, that is active. The
BC-895,with its larger display, has 30 indicator lights.
   Search/Monitor Mode
With the SEARCH/MONITOR mode, you can not only watch the channel
indicators to see how active the system is, you can also view the IDs
which are currently on-the-air. Press and hold the SEARCH key for 1.5
seconds and you'll receive a double-beep tone. You will no longer hear
transmissions from the groups, but your TrunkTracker will flash the
active ID numbers (along with the indicator lights), approximately one
per second. IDs which are locked out will also flash in the display
with the L/O icon. This is a good way to discover which are the
predominate users of a system.
   Scan Lists
Each of the 10 banks of a BC-235 scanner can be a trunking bank and
these banks can be scanned conventionally if so desired. Each active
trunking bank contains five SCAN LISTS of ten memories each (50 total
per system, 500 maximum for 10 systems). In any trunked bank, you could
assign Lists One as your police list, List Two for fire, etc.. Once
you determine your favorite IDs, you can manually enter them into SCAN
LIST memory by putting the radio into MANUAL mode and entering an ID,
just as you would enter a frequency in conventional mode.
You can also enter an ID into SCAN LIST memory location on-the-fly, as
interesting IDs become active in SEARCH mode. Here's how this would
work. Let's say that you have TrunkTracker in SEARCH mode. An ID of
5226 becomes active and it's the police detail at a college football
game. You decide that this would be an interesting ID to place in
memory for future weekend monitoring. You can enter this ID into
memory two ways:
* Simply hit the "E" (ENTER) key while there is activity on the ID.
This will place the ID in to the first available memory location.
* Hit the PRIORITY key. You can now use the UP and DOWN arrow keys
to scroll through all 50 memory locations and select the location
into which you would like to place this ID. Once you hit the
PRIORITY key, the ID that interests you will remain in the
display, even if the conversationon the group ends, until you've
selected the memory location and have hit the ENTER key.
Note: The PRIORITY key is also used to toggle the display between
showing which SCAN LIST banks are active--since you can turn banks
one through five on or off individually,just as in conventional
scan mode--or showing the channel indicators described above.)
   LOCKOUT
Trunk lockout works similar to lockout in conventional scanning;
however, instead oflocking out a frequency, you use the LOCKOUT key to
lock out a group ID. If you don't want to hear the sanitation group on
the system, just lock out that ID as soon as it becomes active, or,
if you know that ID in advance, you can enter it while in the HOLD mode
and lock it out manually.
There are two types of conversations that you will not hear on
TrunkTracker. Telephone interconnect calls, which generally always
occur on the same one to three channels of a trunked system, are not
trackable, although they are in conventional scan mode, since they are
not known to change frequency once an interconnect call has been
initiated. Private calls, which are one-to-one direct communications
between two units, are also not tracked. Unscientific studies have
shown that these types of calls represent a small fraction of all the
calls broadcast over typical trunked systems.
>>> Continued to next message
 * SLMR 2.1a * 
--- WILDMAIL!/WC v4.10 
---------------