Uniden UH-055 - Manual (Page 5)

4. DUPLEX/SIMPLEX SWITCH: Allows the transceiver to operate via a repeater
station when switched to channels 1,2.3,4.5,6,7 or 8. The set receives on these
channels but automatically transmits on channel 31,32,33,34,35,36,37 or 38 re­
spectively. When this switch is on the "simplex" position the set receives and trans­
mits normally on the same channel (simplex transmission).
5 ANTENNA CONNECTOR: Connect the flexible antenna provided with the UH-055.
Fit the connector tip of the antenna to the connector on the top panel then press and
rotate it clockwise till it stops with a click sound. An external antenna can be used in
the same manner as the flexible antenna.
6. CHANNEL INDICATOR: LCD indicates the channel number in use.
During NORMAL Mode; Displays the channel selected by the CHANNEL SELEC­
TOR Switch.
During SCAN Mode; Displays the channel currently being scanned.
7. SQUELCH CONTROL: This Squelch Control is rotated to cut off or eliminate
received background noise in the absence of an incoming signal. For maximum re­
ceive sensitivity, it is desired that the control be rotated only to this point where the re­
ceive background noise or ambient background noise is eliminated. Turn the control
fully counterclockwise, then slowly rotate clockwise until the receive noise disap­
pears. Any signal to be heard must now be slightly stronger than the average re­
ceived noise. Further clockwise rotation will increase the threshold level which a
signal must overcome in order to be heard. Only strong signals will be heard at the
maximum clockwise setting.
8. OFF/VOL. CONTROL: Turn clockwise to apply power to the radio and to set the au­
dio volume to the desired listening level. Fully counterclockwise to turn the radio
OFF.
9. CHANNEL SELECTOR SWITCH: This switch selects the desired channel for trans­
mission and reception. All channels, except channel 11 may be used for Call Chan­
nel. Channel 11 has been reserved by the D.O.C. for emergency communications
involving the immediate safety of individuals or immediate protection of property.
Channel 11 also may be used to render assistance to a motorist. This is the D.O.C.
rule and applies to all operators of citizens band radios.
10. MEM SWITCH:
In the NORMAL mode; Press the MEM switch to program or disable channels in the
selected scan memory.
In the GROUP SCAN mode: When scanning, press the MEM switch to HOLD the
channel currently being scanned. Press again to resume scanning.
In the OPEN SCAN mode: When scanning, press the MEM switch to SKIP over a busy
channel you do not wish to listen to.
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