28
out talk group IDs”.
scanning type I and hybrid trunked systems
Your scanner is preset to scan Type II system IDs. When you scan trunked frequencies,
each Type II user ID you see appears as an even number without a dash (example 2160).
Your scanner can also scan Type I trunked systems. Each Type I ID appears as a three- or
four-digit number, followed by a hyphen, followed by a one- or two-digit number (example
200-14).
If you notice a mix of odd- and even-user IDs (examples 6477, 2160, 6481, 6144, and
1167), then you are probably monitoring either a Type I or hybrid (a combination of Type I
and Type II user IDs) system with the S-Bit function turned off (see “turning the status bit
ignore (S-Bit) on or off”).
Subfleet information is included with the frequency list for a Type I system. To enter the
provided map, see “programming a fleet map”.
Note:
To locate suitable fleet map information, review the contents of website
www.trunkscanner.com.
If you do not already know the size codes used, you will have to guess. Since you do not
have to figure out all the blocks at one time, this is not as hard as it might seem.
Select a size code for a block, then press
SCAN
and listen to the conversations. If you are
receiving most of the replies, then you have probably selected the right size code and can
program the next block of the map. There are 16 preset fleet maps to choose from, and it is
best to start with these when setting up a Type I or hybrid trunk scanning bank.
If none of the following preset fleet maps allow you to follow complete conversations, then
you probably need to program your own fleet map (see “Programming a Fleet Map”).
preset fleet maps table
Block
Size Code
E1P1
E1P
2
E1P
3
E1P
4
E1P
5
E1P
6
E1P
7
E1P
8
0
S11
S4
S4
S12
S4
S3
S10
S1
1
S11
S4
S4
(S12)
S4
S10
S10
S1
2
S11
S4
S4
S4
S12
S4
S11
S2
3
S11
S4
S4
S4
(S12)
S4
S4
S2
4
S11
S4
S4
S4
S4
S12
S4
S3
5
S11
S4
S4
S4
S4
(S12)
S4
S3
6
S11
S4
S12
S4
S4
S12
S4
S4
7
S11
S4
(S12)
S4
S4
(S12)
S4
S4
Block
Size Code
E1P
9
E1P
10 E1P 11 E1P 12 E1P 13 E1P 14 E1P 15 E1P 16