Repair procedures, tests, and adjustments
82
Manpack Transceiver 2110 series Repair Guide
Adjusting low output power
To adjust the low output power:
1
Select any frequency between 4 and 6 MHz.
1
Press
Tx PWR
until
Lo
is selected.
1
Switch on PTT on the 0208.
1
Adjust the output level of the 0208 until the RF output power of the transceiver stops
increasing, then increase the output level of the 0208 by 3 dB.
1
Adjust LO PWR (R124) for 5 W PEP (see
Figure 12 on page 30
).
1
Check that the two-tone waveform is clean and undistorted.
If it is not clean and undistorted, further analysis is required.
1
Switch off PTT on the 0208.
1
Press
Tx PWR
until
Hi
is selected.
1
Return to the Repair flowchart (see
Figure 29 on page 95
), if required.
PA & Filter PCB (08-06064-001)
(see
Figure 12 on page 30
)
NOTE
Before adjusting the low output power, set the high output power (see
page 81,
Adjusting high output power
).
Содержание 2110 series
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