Alinco DX-SR9 E, Руководство по обслуживанию

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43
5) RX Test Specification
TEST ITEM
RX Sensitivity
SSB
RX Sensitivity
AM
RX Sensitivity
FM
RX Distortion
FM
S Meter
Squelch SSB
Noise Blanker
NOTE
S/N is 10dB or more
The test standard nothing entry is
omitted so that confirmation in same
BPF is made.
S/N is 10dB or more
SINAD is 12dB or more
SSG Output 40dBu
Decrease SSG level and decrease
S Meter level
The noise is reduced in Noise
Blanker SW ON, and there is not S
meter indication.
CONDITION
1.0000MHz LSB
1.9000MHz LSB
3.6000MHz LSB
7.1000 MHz LSB
10.1000 MHz USB
14.1000 MHz USB
18.1000 MHz USB
21.1000 MHz USB
24.9000 MHz USB
28.1000 MHz USB
RF : +10dBu
1.0000MHz
14.1000MHz
MOD 1KHz 30%
RF : +10dBu
28.1000MHz
MOD 1KHz
1.75KHz/DEV
RF : +10dBu
28.1000MHz
MOD:1KHz
1.75KHz/DEV
RF : +10dBu
14.1000MHz
MODE : USB
RF : 0dB
SG : OFF
SG : 20dBu
SG : 40dBu
14.1000MHz
MODE : USB
RF : 0dB
SG : OFF
SG : 30dBu
SQL VOL: MAX
14.1000MHz
MODE : USB
RF : +10dBu
SG
：
40dBu
MOD 20Hz
100KHz/DEV
Noise Blanker ON
(FUNC
→
9 key)
TEST STANDARD
Less than +6dBu
Less than -6dBu
Less than -6dBu
Less than -6dBu
Less than -6dBu
Less than -6dBu
-
Less than -6dBu
-
Less than -6dBu
Less than +26dBu
Less than +12dBu
Less than 0dBu
Less than 5%
Disappear
S 1 〜 2
S 8 〜 9.5
When the position of
squelch volume is
about 9 to 11,
Squelch Close.
Squelch Close
Confirm
TEST ITEM
AGC
RF GAIN
FILTER Switching
NOTE
Switch AGC-S. When SG is turned
OFF, the meter moves slowly.
Switch AGC-F. When SG is turned
OFF, the meter moves fast.
Change RF GAIN, and the
oscillation of the S meter change.
Switch the FILTER in every mode,
the noise sound should be changed.
CONDITION
14.1000MHz
MODE : USB
RF : +10dBu
SG
： +40dBu
Switch AGC-F/S
(FUNC
→
MHz key)
14.1000MHz
MODE : USB
SG
： +40dBu
14.1000MHz
MODE : CW, AM
SG
： OFF
Switch the FILTER
(FUNC
→
RF key)
TEST STANDARD
Confirm
Confirm
Confirm