Abell S1, Руководство по обслуживанию

Страница: 39 / 43

S1 Service manual
39
10
．
Spectrum Analyzer
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 ： 50 Ω
12
．
Tracking Generator
1
．
Center frequency
：
50KHz to 500MHz
2
．
Frequency Deviation
：
±35MHz
3 ． Output voltage ： 100mV or more
13
．
Dummy Load
1
．
16 Ω
，
1W 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
：
50mV to10Vrms
3
．
ADJUSTMENT FREQUENCY LIST
Destination
DH DL PMR446
Channel
TX
(MHz) RX
(MHz) TX
(MHz) RX
(MHz) TX
(MHz) RX
(MHz)
Centre 460.050 410.05 446.00
Low 450.050 400.05 446.05
High 469.950 419.95 446.10
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 12 screws.
3
．
Solder the antenna terminal to the terminal of unit.