
12 UHF CB RadioUNIDEN UH507SX-2NB
NOTE
Alwayslistenonachannel(orobservethereceivesignallevelmeter)to
ensureitisnotalreadybeingusedbeforetransmitting.
Channels5and35areusedforemergencychannels.
CTCSS/DCS will not operate on these channels.
PleasefollowtheseguidelinesforchanneluseinAustralia:
•Channels05and35areEmergencyChannels.
•Channel11isaCallingChannel.
•Channels22and23arefortelemetryandtelecommand
applications,channels61,62and63areforfutureuseandTX
is inhibited on these channels.
General communication is accepted on all other channels
withtheseguidelines:
•Channel40-roadchannel(Australia).
•Channels01-08(and31-38),andChannels41-48
(and 71-78) are repeater channels.
NOTE
Important information - 80 Channel UHF-CB channel expansion
ToprovideallusersadditionalchannelcapacitywithintheUHF-CBBand.
TheACMAwillchangethemajorityofthecurrentwideband40channel
use to narrowband channel use. This allows for additional channels to be
added,upto80Channels.
Thissimplymeansthatthenewnarrowbandradioyouhavepurchasedwill
havemorechannelsthanolderradios.Pleaserefertotheguidelinesabove
and the channel chart for further channel information.
A list of currently authorised channels can also be obtained from the
ACMA website in Australia and the MED website in New Zealand.
Interference / Poor Audio
Whenanewnarrowbandradioreceivesasignalfromanolderwideband
radio the speech may sound loud.
NarrowbandradiosoperatingonCH41-CH80mayencounter
interferencefromanearbywidebandradiostransmittingonhighpower
on an adjacent channel (frequency).
Whenanolderwidebandradioreceivesasignalfromanewnarrowband
radio the speech may sound quiet - the wideband radio user simply
adjuststheirradiovolumeforbestperformance.
Theabovesituationsarenotafaultoftheradiobutasymptomofmixed
wideband and narrowband radios in current use. It is expected that as older
wideband radios are phased out this issue will be eliminated.
UHF Channels Guidelines