User's Manual

68P8100XYXX-O APRIL 2003 3-9
PRELIMINARY
Internal Review (First Draft - 50% to 60% Complete)
SIMULCAST CONFIGURATION ILLEGAL CARRIER DETERMINATION AND BASE RADIO MEASUREMENT
MEASURING CHANNEL INTERFERENCE
The STR 3000 Simulcast Base Radios log interfering carrier levels that surpass the RF threshold
value to the station error log. These logs can be used to determine periodic interfering carriers
that are not present long enough to trigger the Carrier Malfunction Timer.
These logs should also be checked after any changes are made to the site that affect the site noise
floor. An example of this type of change would be seen when a new customer in the immediate
area is using the same frequency band.
SETTING THE STR 3000 SIMULCAST BASE RADIO RF
T
HRESHOLD VALUE FIELD
The RF Threshold Value field appears on the Station Configuration tab of the STR 3000
Simulcast Base Radio window.
This field defines the level (in dBm) above which the received signal is considered to be an
illegal carrier, if this STR 3000 Simulcast Base Radio is not assigned to a call.
Procedure 3-1 describes the steps to set the RF Threshold Value field.
P
ROCEDURE 3-1 HOW TO SET THE STR 3000 SIMULCAST BASE RADIO RF THRESHOLD
V
ALUE FIELD
1 In the CSS application, select STR 3000 Simulcast Base Radio.
Result: The STR 3000 Simulcast Base Radio window appears (Figure 3-10).
F
IGURE 3-10 STR 3000 SIMULCAST BASE RADIO WINDOW SCREEN
Exhibit 9C