20 Calibrating the Reciter © Tait Electronics Limited February 2007
Calibrating the Balanced Line
This procedure is carried out on the analog line if the reciter network board has
been replaced or repaired. It adjusts the gain, so that when you set line levels
using the CSS, the actual line level correctly reflects the CSS settings. (Refer to
the TB9100 Customer Service Software User’s Manual for further information.)
Equipment ■ CTU
■ AC millivoltmeter
Setup for Line Out
Setup for Line In
To calibrate the analog input and output lines
1. Make sure that the equipment is set up and that the Calibration Software is
connected to the reciter.
2. Select the Reciter Calibration tab, and double-click Balanced Line
Calibration. The Balanced Line Calibration Wizard appears.
3. Attach an AC millivoltmeter and terminate the output in 600 ohms (either
using the load on the CTU or looping the balanced output to the balanced
input), and then click Next.
4. Adjust the slider in the dialog box until the audio level on the millivoltmeter
reads 1 V
PP (0.354 VRMS).
PC
Power
supply
BASE STATION
CALIBRATION TEST UNIT
RS-232
RJ45
CTU
Reciter
ETH
AUD
Power cable
DIG
AC milli-
voltmeter
Line
output
Power
supply
BASE STATION
CALIBRATION TEST UNIT
RS-232
RJ45
ETH
AUD
Power cable
DIG
AC milli-
voltmeter
Line
output
Line input