Listen LR 400, Руководство по дизайну и инструкция

Страница: 63 / 84

57
LR-400/500
Squelch
The purpose of squelch is to mute the audio output of your receiver when the signal from the
transmitter is turned off or is too weak to be received. Without squelch you would hear radio noise
in your earphone. The squelch on your receiver can be adjusted so that it will mute the audio on
GLIIHUHQW5)VLJQDOVWUHQJWKV7KLVLVXVHIXODVIROORZV
LR-400/500 Operating Instructions
Set the squelch setting to the highest level
7RHQVXUHWKDWXVHUVGRQ·WKHDUWUDQVPLVVLRQVIURPRWKHU
transmitters, set the squelch setting to the highest level that
GRHVQ·WVTXHOFKWKHUHFHLYHU
If the receiver is close to the transmitter, set the squelch high
,IWKHUHFHLYHULVJRLQJWREHFORVHWRWKHWUDQVPLWWHULHLQ
DFODVVURRPVHWWKHVTXHOFKVHWWLQJKLJKVRWKDWZKHQWKH
transmitter is turned off it immediately squelches and ignores
transmitters in other rooms.
If in an area that has a lot of interference, set the squelch high
,I\RXDUHLQDQDUHDWKDWKDVDORWRILQIHUHQFH\RXPD\ZDQWWR
set the squelch setting to a high setting to ensure the
interference is not picked up by the receiver.
Squelch
Setting
Squelch
0
1
2
3
GHIDXOW
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
No Squelch
Loose Squelch
0RVW5DQJH
Tight Squelch /HDVW5DQJH
For maximum amount of range, set the squelch to a low level
,I\RXQHHGWKHPD[LPXPDPRXQWRIUDQJH\RXPD\ZDQWWR
FRQVLGHUVHWWLQJWKHVTXHOFKVHWWLQJWRDORZOHYHORU
NOTE: Default squelch setting is 3
CAUTION: When setting the squelch level low the reliability of squelch
function is compromised. This will cause radio noise to be heard in
the earphone and there is a possibility of hearing damage.