Commercial In Confidence
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6.11.3
SET RX FREQUENCY
This adjusts the receiver’s frequency by varying the voltage to the VCTCXO.
It is normally set to the mid point +/-2.5V and the frequency is then set up with
the variable capacitor in the VCTCXO. This enables later electronic adjustment to be carried
out via a PC or over the radio link.
6.11.4 CALIBRATE
POWER
Following the menu, the operator adjusts the power output via the arrow keys and enters
requested levels. These levels are used to calibrate the particular RF power profile of the
individual product. This profile is then used to accurately select the required RF power level
via the PC program or over the air.
6.11.5 SET PEAK DEVIATION
Using the up/down arrow keys the peak deviation level is set for the required channel
spacing.
6.11.6 INTERNAL
MOD
LEVEL
The internal modulation level adjustment sets the normal modulation level for the product.
6.11.7 SET LINE INPUT LEVEL & SET LIN OUTPUT LEVEL
These options allow the line input and output levels to be adjusted between –20 and +3dBm.
6.11.8 CAL
RSSI
In the same way as the RF power calibration profile is built up, so the RSSI profile is built. Once the
profile is in the product, a calibrated RSSI level can be observed on a connected PC or over the radio
link.
6.11.9 RSSI
TEST
Will read a calibrated -15 to +30dBuV for antenna alignment and range testing
6.11.10 TEMP/PSU
TEST
This function measures the internal temperature of the radio and the input voltage level
of the connected power supply.
6.11.11 RETURN TO MAIN MENU
Simply returns the user to the Main Menu
