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20-427 Owner's Manual Draft
406–512 MHz
806–823.9875 MHz
849–868.9875 MHz
894– 960 MHz
Memory channels
Channel memory banks
Sensitivity (20 dB S/N):
FM/AM(aircraft band):
28–54 MHz
108 –136.99166 MHz (AM)
137–174 MHz
406–512 MHz
806–960 MHz
Selectivity:
‒6 dB
‒50 dB
Spurious Rejection (at 154.1 MHz FM)
Scanning Rate
Search Rate
Delay Time
Intermediate Frequencies (IF):
1
st
2
nd
3
rd
Priority Sampling
Operating Temperature
IF Rejection:
380.8 MHz at 154.1 MHz
21.4 MHz at 154.1 MHz
Squelch Sensitivity:
Threshold (FM and AM)
Tight (FM)
Tight (AM)
(in 6.25 kHz steps)
(in 6.25 kHz steps)
(in 6.25 kHz steps)
(in 6.25 kHz steps)
300
10
0.3 µV
1 µV
0.5 µV
0.5 µV
0.7 µV
±10 kHz
±18 kHz
40 dB
Up to 60 Channels per Second
Up to 75 Steps per Second
2 seconds
380.8 MHz
21.4 MHz
455 kHz
2 seconds
–4 to 140° F (–20 to 60° C)
60 dB
100 dB
0.5 µV
25 dB
20 dB
Page 32 of 36
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