Uniden UBC3000XLT manual 880@@, How Squelch Works

Page 12

How Squelch Works

The squelch circuit in your scanner is like a gate. If it is too Iow, everything gets through

... noise, weak signals, and strong signals.

Strong Signals

MediumSignals

 

.

WeakSignais::::::::: u

u

:

........................................................................

......--

-....--..--..

 

 

If the

gate is set too high, nothing gets

Setting the Squelch

through ... not even the strong signals.

Adjust VOLUME to a comfortable listening

When the gate is correctly set, strong

level.

 

signals get through, but weaker signals and

To set the Squelch, you must be in the

noise

are blocked.

.

Manual Mode. No signal should be present

 

 

 

StrongSignals-

when adjusting Squelch.

 

..

1. Press (.MANUA~untilyou do not hear a

 

 

 

MediumSignals- .

signal.

 

 

.

 

WeakSignals +

Noise-

-..---..--..

---..---....-.......

.

11 12 13

......

Noise. -- . . -- - . . --...

-.....--..--........

(OSCAN') 0 @ @

14 15 18

Strong Signals

Medium Signals---': .

WeakSignals

:

m

-

-...

 

 

,..

---..---..

 

 

 

Noise.

-..-

--. .

- - -

-..

- . ...

---..---

....

?ress (OIlANUA~ @ @ @

BSAVE 17 18 19

880@@

SFT 20

880@@

8

Image 12 Contents
UBC3000XL T Nickel-Cadmium Battery Warning Earphone WarningControls and Indicators Controls Indicators 8881 Si--M-ii-zContents Introduction UtilityReplacement Parts on Included with your Scanner 88888Power Installing/Removing the BatteryInstalling the Belt Clip Attaching the AntennaBanks and Channels Scanning Versus Searching880@@ 880@@How Squelch Works 81~ Keypad LockoutB30@@ @ @Manual Programming Select the channelB80@@ Press Be 07 @18@19Search Programming @ @ @~Enterthe88€@@ R380@@8E30@@ 88€@@BB 3~ Auto-Store ProgrammingWWfik~~.\~ ~~ 888.888 11Hz 7511Hz@ @,r-Enterthe @ @Transferring a Channel Frequency PressO@20@1-I Transfer the frequencyDeleting a Stored Channel Frequency Press E key Scan Modeon Manual Modeon Display the channel, press ~Scan Mode E380@@Begin Scanning Turning Banks On Or OffD.@2O@ Locking Out Channels8130@@ Unlocking a ChannelL330@@ SCAN0 @ @~Unlocking AllChannels Using Priority Scan B80@@E3 3 07 @18@19 §EJ dFT§2O@Using Scan Delay 8r3€@@ 88888 813?@@ 330@@JFT@/@ Scrolling FrequenciesUsing Turbo Search 38888Jsing Search Delay Press €30@@Locking Out Frequencies Locking Out a FrequencyPress €JEO@@ E33€@@Manual Mode 380@@Scrolling Channels 61 -150.312 511Hz88J0@@ @ @erSelecting a Specific Channel Using Data Skip R330@@88 3 8 E3 380@@ Changing The Frequency Step~S--8-- ~ ~S--8--8t@18@18 B80@@F313€@@ 80J 3 8 E38a888 Display LightQptional Accessories & Replacement PartsBattery Maintenance CleaningGeneral Use LocationTroubleshooting Technical Information UBC3000XLT Birdies SE!ecifications One Year Limited Warrant~ UBZZO1247AZ
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