Standard Horizon Quest-X GX1500S, Руководство по обслуживанию

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12
Alignment
Reference Frequency Adjustment
Setup the test equipment as shown below.
Set the channel to CH16.
Adjust
TC1002
so that the DC voltmeter reading is
1.5 V ± 0.1 V.
Set the channel to CH16.
With the PTT switch pressed, adjust TC1001 so that
the DC voltmeter reading is 3.0 V ± 0.1 V.
Release the PTT switch.
Transmit Power Adjustment
Setup the test equipment as shown below.
Set the channel to CH16.
Use the [ H/L
(
NAV
)] key to set the transceiver to “LOW”
power.
With the PTT switch pressed, adjust TC1003 so that
the Frequency Counter reading is 156.800 MHz ± 100
Hz.
Release the PTT switch.
Receiver VCV Adjustment
Setup the test equipment as shown below.
Sub Receiver/Transmitter VCV Adjustment
Setup the test equipment as shown below.
GX1500S
Frequency
Counter
50-ohm
Dummy Load
Sampling
Coupler
ANT
DC Voltmeter
TP1010
GX1500S
GX1500S
50-ohm
Dummy Load
ANT
DC Voltmeter
TP1007
Set the channel to CH16.
Use the [ H/L
(
NAV
)] key to set the transceiver to “HI”
power.
With the PTT switch pressed, adjust VR1001 so that
RF output power is 24 W ± 0.3 W.
Release the PTT switch, then set the transceiver to
“LOW” power by the [
H/L
(
NAV
)] key.
With the PTT switch pressed, adjust VR1002 so that
RF output power is 0.8 W ±0.1 W.
Release the PTT switch.
50-ohm
Dummy Load
ANT
Inline
Wattmeter
GX1500S
MAIN UNIT A
LIGNMENT
P
OINT
L
1013
/ L
1010
L
1027
/ L
1014
L
1028
/ L
1015
L
1031
/ L
1016
TP
1006
TC
1002
VR
1001
VR
1003
VR
1002
VR
1004
TC
1001
TP
1011
JP
1001