Uniden UH8080S Owner's Manual

Also see for UH8080S: Manual

47UNIDEN UH8080S UHF CB TransceiverUHF-CB Channel GuidelinesNOTEAlways listen on a channel (or observe the receive signal level meter) toensure it is not already being used before transmitting.Channels 5 and 35 are used for emergency channels.CTCSS, DCS, TSQ and SELCALL will not operate on these channels.Please follow these guidelines for channel use in Australia:• Channels 05 and 35 are Emergency Channels.• Channel 11 is a Calling Channel.• Channels 22 and 23 are for telemetry and telecommand applications,channels 61, 62 and 63 are for future use and TX is inhibited on thesechannels.General communication is accepted on all other channels with theseguidelines:• Channel 40 - road channel (Australia).• Channels 01-08 (and 31-38), and Channels 41-48 (and 71-78) arerepeater channels.NOTEImportant information - 80 Channel UHF-CB channel expansionTo provide all users additional channel capacity within the UHF-CBBand. The ACMA will change the majority of the current wideband 40channel use to narrowband channel use. This allows for additionalchannels to be added, up to 80 Channels.This simply means that the new narrowband radio you have purchasedwill have more channels than older radios. Please refer to the guidelinesabove and the channel chart for further channel information.A list of currently authorised channels can also be obtained from theACMA website in Australia and the MBIE website in New Zealand.Interference / Poor AudioWhen a new narrowband radio receives a signal from an olderwideband radio the speech may sound loud - however the radio’s built-in AVS (Automatic Volume Stabilizer) circuitry will detect and manageincoming audio to comparable levels.Narrowband radios operating on CH41 - CH80 may encounterinterference from a nearby wideband radios transmitting on high poweron an adjacent channel (frequency).When an older wideband radio receives a signal from a newnarrowband radio the speech may sound quiet - the wideband radiouser simply adjusts their radio volume for best performance.The above situations are not a fault of the radio but a symptom of mixedwideband and narrowband radios in current use. It is expected that asolder wideband radios are phased out this issue will be eliminated.