B3.4 T855 Initial Tuning and Adjustment M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
3.3 Test Equipment Required
You will need the following test equipment:
• computer with PGM800Win installed
• T800 programming kit
• module programming interface (e.g. T800-01-0004 – optional)
• 13.8V power supply
• digital multimeter
• audio signal generator
• RF signal generator
• audio voltmeter
• sinad meter
• oscilloscope
• distortion meter
• T800-01-0010 calibration test unit (optional)
• 4Ω speaker (not needed if the calibration test unit is used)
Figure 3.1 T855 Test Equipment Set-up For Short Tuning Procedure
Figure 3.2 T855 Test Equipment Set-up For Full Tuning and Adjustment Procedure
or RF test set (optional)
not needed for short tuning procedure
Receiver
RF In
RF Signal
Generator
Audio Signal
Generator
PSU
+13.8V
-Ve
External
Modulation
Sinad
Meter
Audio
Voltmeter
Line
Line
T800
Calibration
Test Unit
PGM800Win
Figure 3.1 and Figure 3.2 show
typical test equipment set-ups
(with and without a T800-01-0010
calibration test unit).
Receiver
RF In
RF Signal
Generator
Audio Signal
Generator
PSU
+13.8V
-Ve
External
Modulation
GND
Distortion
Meter
Sinad
Meter
Audio
Voltmeter
Oscilloscope
Line
Line
600Ω
Speaker
Output
Probe
4Ω Speaker
(Or 4Ω Resistor)
CH1
C
H2
G
ND
PGM800Win
Serial
Com
via module programming interface
(e.g. T800-01-0004)