B3.4
T855 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
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 & 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
CH2
GND
PGM800Win
Serial
Com
via module programming interface
(e.g. T800-01-0004)