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ALIGNMENT PROCEDURES
This transceiver is completely aligned at the factory and does not require any adjustments for installation.
However it is considered as good practice to verify that none of the adjustments have changed.
The test equipment listed below are used for the test setup shown in Fig. 3.1.
This test setup used either partially or totally during the following adjustments.
A.TEST EQUIPMENT
1)
DC Power Supply (7.2V DC)
0 - 15V 3A max.
2)
RF Power Meter
10 W 50 Ohm 100-200 MHz
3)
RF Signal Generator
100-200 MHz, 50 ohm termination
4)
FM Linear Detector (FMLD)
100-200 MHz
5)
Frequency Counter
1-500 MHz
6)
Oscilloscope
20 MHz
7)
Distortion Meter
8)
SINADDER (Trademark of Helper Instruments Co.)
9)
Audio Oscillator
10) Toggle Switch (for use as PTT switch).
Fig. 3.1
RF POWER
METER
DC POWER
SUPPLY
AUDIO OSC
PTT
SWITCH
UNIT
UNDER TEST
OSCILLOSCOPE
SINADDER
FMLD
FREQ
COUNTER
DISTORT
METER
RF SG
SPEAKER
JACK
MIC
ANT
RX
RY
COUPLER
9
Содержание MR HH475 FLT BT/EU
Страница 11: ...WIRING DIAGRAM 11 ...
Страница 12: ...PRINTED CIRCUIT BOARD Main PCB Top View VR2 VC1 12 ...
Страница 13: ...PRINTED CIRCUIT BOARD Main PCB Bottom View L18 L20 13 ...
Страница 14: ...PRINTED CIRCUIT BOARD Cradle Charger PCB View Top View Bottom View 14 ...
Страница 16: ...EXPLODED VIEW for HH475 Main Part 16 ...
Страница 17: ...EXPLODED VIEW for Battery and Antenna 17 ...
Страница 54: ...U4 U5 324 NJM V 54 ...
Страница 60: ...U401 HT1621 DICE 60 ...