Abell A-80 - Page 38

A-80 UHF SERVICE MANUAL
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1．Measuring range：DC to 1GHz or more.
11．Standard Signal Generator (SSG)
1．Maximum frequency：500MHz or more.
2．Output：－133dBm/0.05μV to 7dBm/501mV
3．Output resistance：50Ω
12．Tracking Generator
1．Center frequency：50KHz to 500MHz
2．Frequency Deviation：±35MHz
3．Output voltage：100mV or more
13．Dummy Load
1．8Ω，3W or more
14．Audio Generator (AG)
1．Frequency range：100Hz to 100KHz
2．Output：0.5mV to 1V
15．Distortion Meter
1．Frequency range：30Hz to 100KHz
2．Input level：50mVto10Vrms
ADJUSTMENT FREQUENCY LIST
Destination
DL DH
Channel
TX f
(MHz)
Rx f
(MHz)
TX f
(MHz)
Rx f
(MHz)
Center 415.025 440.025
Low 400.025 455.025
High 429.975 469.975
Remark
·Connect the transceiver to the PC.
·Send the channel data to the transceiver, then backup the data.
·Program the adjustment frequencies which are on the list, into the transceiver.
Note：Remember to reload the backed up date after making the adjustment.
1．Jig (chassis) for adjustment
2．Use the jig as follow：
1．Insert the coaxial cable connector into the jig.
2．Place the unit on the jig and fix it with 11 screws.
3．Solder the antenna terminal to the terminal of unit.
Note：Supply power from an external power supply