DAC Monitoring and Control System
User Manual Data Logger and Tower Meter
DL-PDL_General-User-Manual
_ve_2-0-2.docx
Page 48
Step 6: Disable “Display measured voltage” in the Configuration
Mask of the DL/PDL – General.
Use the button “Reset Calibration Data” to re-adjust to the “Default” values.
Other calibration data:
Set the calibration offset for the return loss (RL) measurement results of this individual
sensor acc. to the specification of the System Supplier, if no data is provided the offset is
zero.
Set the Rx compensation value in case the rf-system with the sensor is used together
with other rf-system (other frequencies) in the same tower. Procedure:
Switch off (amplifier/transmitter) the rf-system with the related sensor
Switch on (amplifier/transmitter) all other rf-systems
Consult dashboard, read Rx value (=cross noise of the other rf-systems)
Enter the value red in the dashboard as an absolute
value
. Example: Rx value=
0.08, noise compensation value: 0.08
Caution
For accurate power value measurement, calibration is tuned for
modulated
signals:
FM: FM - Radio
VHF: for TV signals – in case it is DAB modulated a correction is required
UHF: for TV signals
Measurements with constant wave (CW) in UHF range will be 2.48 dB higher
Measurements with constant wave (CW) in FM range will be 0.2 dB higher