Copyright TEL
31/01/96
4.1
Current Consumption
Connect the T836/837 to a 13.8V power supply.
Connect an RF power meter to the T836/837 output socket.
Check that the current in the 13.8V power cable is less than 120mA.
Key the T836/837 (the "Carrier On" LED should light).
T836 Only:
Adjust &RV356 (power control) to obtain 25W output power.
Check that the current is as follows:
T836
<4.5A
T837 <600mA.
4.2
Output Power
Connect an RF power meter to the T836/837 output socket.
Key the T836/837.
Check that:
T836
the output power adjusts to >30W with &RV356 turned fully
clockwise
T837
the output power is 800mW +200, -100mW.
4.3
Output Frequency
Connect the T836/837 output to a frequency counter via an attenuator pad:
T836
40dB pad
T837
20dB pad.
Measure the output frequency and, if necessary, adjust the TCXO (IC1) to trim to
the nominal frequency (±100Hz).
4.4
Tail Timer
Adjust RV202 fully anticlockwise.
Connect the key line to earth, then disconnect, and check that the T836/837
remains on for at least 3 seconds.
Содержание T830 Series
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