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Trunking Setup
39
Trunking Setup
Base and Offset Frequencies
To receive Motorola VHF and UHF system transmissions, you must
program applicable base and offset frequencies. In the 800 MHz
trunking band, you can select a base frequency (normal or offset),
but in the 900 MHz trunking band, you do not need to set the base
frequency.
You can get information about base and offset frequencies from
www.radioreference.com.
UHF-Lo (406-512 MHz)
To program Motorola base and offset frequencies:
1. Press PROG then TRUNK to enter the ID program mode.
2. Press FUNC, then press S or T. The bank number increases or
decreases by one. If you hold down S or T, the bank number
increases or decreases continuously.
3. If necessary, repeatedly press MODE to select
“Motorola.”
4. Press FUNC then 2. The screen displays the Base, Offset, and
Step with the
B
in Base blinking.
5. If necessary, use the number keys to enter a new Base
frequency and press ENT. The
O
in Offset blinks.
6. If necessary, use the number keys to enter a new Offset
frequency and press ENT. The
S
in Step blinks.
Note: If you try to program an offset frequency in the UHF-
Hi bands (806-960 MHz), the scanner ignores the entry.
7. While the
S
in Step blinks, repeatedly press S or T to select
the step number: 5.0, 6.25, 10.0, 12.5, 15.0, 18.75, 20.0, 25.0,
30.0, 31.25, 35.0, 37.5, 40.0, 43.75, or 50.0 kHz, then press ENT.
8. Press PROG.
UHF-Hi (806-960 MHz)
To program 800 MHz Motorola trunking:
1. Press PROG then TRUNK to enter the ID program mode.
2. Press FUNC, then press S or T. The bank number increases or
decreases by one. If you hold down S or T, the bank number
increases or decreases continuously.
3. If necessary, repeatedly press MODE to select
“Motorola.”
4. Press FUNC then 3.
“NORMAL”
appears.
5. Press S or T to select
NORMAL
or
SPLINTER
and press ENT. If
you are uncertain about the base frequency, use NORMAL.
The base frequency in NORMAL is 851.0125 MHz. The base
frequency in SPLINTER is 851.0000 MHz. . If you cannot receive
with the NORMAL setting, change to SPLINTER.
EDACS Trunking Setup
EDACS (GE/Ericsson) systems transmit Talk Group ID data on a
dedicated control channel. Scanning requires clear reception of the
control channel at all times, so EDACS systems generally have a
smaller usable area. You can manually select the data channel, but
an external antenna can greatly improve EDACS scanning.
If you are programming frequencies for an EDACS system, you
must store them in the Logical Channel Number order (usually
listed as LCN#).
Note: For information about saving frequencies into
channels, refer to “Defining a Channel” on page 17.