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5. Repeatedly press s or t until
USr
appears.
6. Press
DATA
.
7. Repeatedly press s or t to select
the size code for the first block,
then press
E
. The next available
block appears.
8. Repeat Step 7 until you have
selected a size code for each
block you want to work with.
9. Press
SEARCH
. The scanner exits
the trunking programming mode,
tunes the data channel, then
begins to search using the map
you programmed.
Note:
If you select size code S12,
S13, or S14, these restrictions apply:
• S12 can only be assigned to
Blocks 0, 2, 4, or 6.
• S13 can only be assigned to
Blocks 0 and 4.
• S14 can only be assigned to Block
0.
Since these size codes require multi-
ple blocks, you will be prompted for
the next available block when pro-
gramming a fleet map. For example, if
you assign Block 0 as an S12, the
scanner prompts you for
b2
, the next
block available, instead of
b1
. And if
you assign Block 0 as an S14, you
would not see another prompt be-
cause it uses all available blocks.
PROGRAMMING A
HYBRID SYSTEM
A hybrid system is simply a Type I
system with some of its blocks desig-
nated as Type II blocks. To program a
hybrid system, follow the steps listed
in “Programming a Fleet Map.” How-
ever, if you want a block to be Type II,
select size code
S0
in Step 7.
20-430.fm Page 37 Wednesday, August 4, 1999 1:29 PM