Alinco DR-235, Service Manual

Page: 31 / 40

4) RX Test Specification
TEST ITEM CONDITION ADJ. STANDARD
TEST STANDARD
NOTE
RX Signal
Sensitivity
216.05MHz
223.50MHz
250.05MHz Less than -7dBu
Less than -8dBu
Less than -3dBu
Less than -6dBu
Less than -7dBu
Less than -2dBu
12dB SINAD
223.50MHz
NARROW
Less than -8dBu Less than -7dBu
223.55MHz Less than 6dBu Less than 7dBu AM 10dB S/N
RX Distortion 223.50MHz
WIDE
NARROW
Less than 4% Less than 5%
SSG Output 30dBu
RX S/N 223.50MHz
WIDE
More than 40dB More than 38dB SSG Output 40dBu
0.3~ 3K H z BPF OFF
223.50MHz
NARROW
More than 34dB More than 32dB
Squelch
Sensitivity 223.50MHz
Indication 02
Squelch Open Squelch Open SSG Output -1 OdBu
Squelch Close Squelch Close SSG Output OFF
S Meter 223.50MHz
1KHz
3.5KHz/DEV
All appears at
20dBu
All appears at
25dBu
Decrease SSG level and
decrease S Meter level
AF Output 223.50MHz More than 2W More than 2W SSG Output 30dBu
CTCSS
Sensitivity 223.50MHz
WIDE
Open at
500Hz/DEV
Open at
500Hz/DEV
SSG Output OdBu
88.5Hz
223.50MHz
NARROW
Open at
250Hz/DEV
Open at
250Hz/DEV
DCS Sensitivity 223.50MHz
WIDE Opens when Test
Equipment is in TX
Opens when Test
Equipment is in TX
255 Code
223.50MHz
NARROW
Opens when Test
Equipment is in TX
Opens when Test
Equipment is in TX
Drain Current 223.50MHz Less than 0.65A Less than 0.65A
Max volume
Power off Current 223.50MHz Less than 10mA Less than 10mA Power off
Howling
223.50MHz Don’t occur Don’t occur SSG Output 60dBu
Mod off, Max volume
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