Icom IC-2GA Service Manual page 21

6-2 RECEIVER ADJUSTMENT
(2) STANDARD SIGNAL GENERATOR (555)
з Frequency range :0,1--180 MHz
= Output level : =1277=17 dBm (0.1 uY--32 mY)
: 13.2 V DC
: ЗА ог more
DT kHzti10 НЕ
:1-—10055.
(4) EXTERNAL SPEAKER
+ Impedance :80
| (5) DC VOLTMETER
* Input impedance : 50 КОЛОС or batter
Fen
Fen
ET
to BATTERY
TERMINAL
| STANDARD
| SIGNAL
| GENERATOR
to ANTENNA |
CONNECTOR |
on p. &-1 (fold-out).
NOTE: When tha sensitivity is batter than 0.25 ум (12 dB SINADI on all frequencies, tha following
sansitivity adjustment is unnecessary. Skip ta Wn SRF level indicator adjustment (balew].
= Frequency; 145.00 MHz
è Receiving
è Apply an RF signal to the ANTENNA
CONNECTOR,
Frequency : 145.00 MHz
Level :o-118 dBm (0,25 им)
Modulation : 1 kHz
Deviation : #35 kHz
s Squelch control: maximum countar-
clockwise
Same as above,
SRF LEVEL
INDICATOR
è Apply an RF signal tó the ANTENNA
CONNECTOR:
Lave) : —101 dBm (2.0 им)
Modulation : 1 kHz
Deviation 1 343.5 kHz
RF UNIT
SENSITIVITY
ADJUSTMENT
[Connaet the voltmatar ta Ја,
pin 7.
Connect the distortion meter
to tha EXT. SP JACK with an
80 load,
FLINCTIOM DISPLAY
Minimum
distartion
А26
БІНЕ LEVEL
INDICATOR ADJUSTMENT
42, pin 7
S/RF LEVEL
INDICATOR ADJUSTMENT
SENSITIVITY
110 | ADJUSTMENT