User's Manual

4 Calibration Overview © Tait Electronics Limited 2005
Field Calibration
The following procedures can be carried out in the field.
Service Center Calibration
The following additional procedures may need to be carried out after a module
has been serviced.
Note: Replacing or repairing a board module may mean that the
module’s product code, product type (frequency band), serial
number, and/or hardware version need to be re-entered or altered.
To do this, your Calibration Kit needs a dongle. The Service Manual indicates
when a module detail needs re-entering or altering.
Reciter
Procedure Connection Equipment Required
Adjusting receiver lock band Outside subrack Tuning tool, CTU
Tuning the receiver Outside subrack Tuning tool (with fine metal
tip for UHF reciter), CTU
Adjusting exciter lock band Outside subrack Tuning tool, CTU
Adjusting the carrier frequency
offset
Depends on
reciter
Tuning tool, Frequency
counter, RF attenuator (only
if using PA)
Procedure Connection Equipment Required
Automatically tuning FCL Inside subrack None
Calibrating the FCL modulation Outside subrack Tuning tool, CTU,
modulation meter, RF
attenuator (only if using PA)
Calibrating the VCO modulation Outside subrack Tuning tool, CTU,
modulation meter, RF
attenuator (only if using PA)
Calibrating the RSSI Inside subrack RF signal source
Calibrating the balanced lines Inside subrack CTU, AC millivoltmeter
(perhaps with differential
input)
Calibrating the unbalanced lines Inside subrack CTU, AC millivoltmeter