RF Technology Eclipse Series Provozní pokyny Strana 13
- Strana / 21
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
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RF Technology R800 Page 13
6.1 Standard Input Signal 6 ALIGNMENT PROCEDURE
TCXO calibration may be required periodically due to crystal aging. The aging should be
less than 1ppm/year.
6.1 Standard Input Signal
RF Signal Generator
50? output impedence
Frequency range 806-950MHz
FM modulation at 1KHz
1.5KHz peak for 12.5KHz channel spacing
3.0KHz peak for 25KHz channel spacing
6.2 RF Alignment
Step Input Measure Adjust
1 Select alignment
frequency channel
dc Volts on TP3 (next to
FL4)
FL4 for maximum dc
volts
2 Signal generator on
centre frequency
channel to J1.
Modulation off.
dc Volts on test socket
pin 7 to pin 1
Generator level to
read 2-3Vdc
3 As above As above FL1,FL2,FL3 for
maximum reading.
Reduce generator
output to keep below
3Vdc.
- R800 Receiver 1
- 2
- 1 Operating Instructions 4
- 2.8 JP11 EPROM Type 7
- 3 Receiver I/O Connections 8
- 4 Frequency Programming 8
- 5 Circuit Description 9
- 5.3 V.C.O Section 10
- 5.4 P.L.L. Section 10
- 5.5 Audio Signal Processing 10
- 5.8 External Squelch 11
- 6 Alignment Procedure 12
- 6.1 Standard Input Signal 13
- 6.2 RF Alignment 13
- 6.4 Line Level Adjustment 14
- 6.3 IF Alignment 14
- 7 Specifications 15
- 7.2 Physical Configuration 16
- 7.5 Connectors 20
LG LZ-H200GBA2 manuales
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