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USER CALIBRATIONS
RECEIVE
Counter
5.00 USER CALIBRATIONS
Several features of the COM3010 can be calibrated by the user: The RSSI Meter, the Master
Time Base, and the Modulation Bargraph Meter.
When displaying the calibration screens items surrounded by '[ ']' indicate user functions,
where the '<' '>' indicate password functions. Password functions are reserved for
technicians with proper equipment only.
5.10 Calibrate the RSSI Meter
Calibrating the RSSI Meter allows the user to "Null-out" cabling losses. This ensures that the
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interface cable's response is not part of the RSSI measurement. When the unit is finished
calibrating it will perform numerous calculations and produce a table for reference. This table
will then be stored in the COM3010's Flash Memory for later use. The RSSI meter can display
any level between –40dBm and -120dBm to an accuracy of ± 1 dB.
Do not reproduce or distribute.
1.
Set the Squelch Control fully counterclockwise.
2.
Select a Cable or series of cables and connectors to be used for testing.
3.
Press
4.
Press
to select RSSI Meter Cal.
5.
Remove any cables from the RECEIVE IN jack. This allows the Meter to get a baseline
calibration with no signal.
6.
Press
to continue.
7.
Connect your selected cable between the RECEIVE IN jack and the RF OUT jack.
8.
Press any key to start the automatic RSSI calibration. The COM3010 will now run
through a series of frequencies and levels taking measurements for each.
9.
When complete the unit will beep and display "Changes saved!" in the Receive screen.
This process will take approximately 2 ½ minutes.
10.
Press any key to return to the Main Calibration Screen.
11.
Press
to EXIT and return to normal operation mode.
Level Meters
Freq Meters
to enter the Main Calibration Menu.
GENERATE
Modulation
72
TX Level
Seq/Reg
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