CommPact Control system, Installation Manual

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4 Advanced System Operation
CommPact Installation Manual
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The second utility, TX Test, enables you to identify transmitters and test their signal strength. In TX
Test mode, each time a transmission is received, the activated transmitter is displayed. If you enter
this function using the Master code, a chime is sounded every time a transmission is received. If you
enter this function using the Engineer code, a sequence of tones is sounded indicating the
transmitter’s signal strength – see Table
4-2. This feature helps you to determine the best location to
install a transmitter.
The lowest recommended signal strength for any installed transmitter is 5. If the received
signal strength is lower than 5, relocate the transmitter.
Table 4-2: Signal Strength Tones
Signal
Strength Strength Tones
0-2 1Tone
3-5
2 Tones
6-7
3Tones
8-9
4 Tones
To initiate TX Test mode:
1.
From the Service menu, select Transmitters, TX Test [7072].
2. Activate a transmitter; the transmitter’s details are displayed.
3. When you have finished, press ‘Χ‘ to exit TX Test mode.
4.7.8. Audio Volume
To adjust the sensitivity of the microphone and the volume of the speaker:
1.
Establish a two-way audio connection – see 5.1.4 Telecontrol Call Procedure.
2. From the Service menu, select Audio Volume [708].
3. Using the arrow keys on the Front Panel keypad, adjust the setting according to the
following table.
Table 4-3: Voice Level Adjustment
Key Function
1 Increases microphone sensitivity
4 Reduces microphone sensitivity
3
Increases speaker volume
6
Reduces speaker volume
4. Press ' √ʹ; the new settings are stored in the memory.
4.7.9. GSM Signal Strength
You can measure the GSM signal strength. This function and the RF RSSI level (see below) enable
you to calculate the optimal location to install the Control System.
To view the GSM signal strength reading:
•
From the Service menu, select RF & GSM level, GSM Signal [7091]; the signal strength
of the cellular network is displayed.
In severe cases of low GSM signal consider using external GSM antenna.