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press removing it. For correct operation ofpress removing it. For correct operation of SCAN and SEARCH modes, Wshoulialmaysbesct.The scan may be stopped by pressingMANUAL, and stepping through the memorychannels achieved by repeatedly pressingMANUAL. Ao1 is the priority channel and isswitched in or out by the PRY LL/UL key.Remember that the AR9ooUK must besquelched before it will scan but that everysynthesized receiver has certain “birdies”which cannot be silenced by the squelchcontrol, and it may be necessary to restart thescan by pressing the SCAN key. MANUAL Virtually every aspect of this mode has already MODE. been covered, so nothing can be added. Thiscompletes the operating of the AR9ooUK, butthe following one or two notes may be ofinterest. ==AERIALS== There are two aerials supplied, the thinner moresuitable for frequencies above 4ooMHz and the thicker forbelow this. If you are scanning a mixture of frequencies, it isa question of trying both aerials to see which performs best.Slightly greater range will result by using an extending whipaerial, trying it at different lengths, but with the snag that itis more prone to damage both itself and anyone close-by.Although connection of an outside aerial system such as adiscone or ground plane on the house roof will oftenproduce better signal strengths, such aerials will generallyproduce bloeking or overloading effects on the AR9ooUK,which is designed to operate with the aerials supplied. YourDealer will be able to advise and supply suitable aerials, orreading any of the books on scanners (our own littlepamphlet makes sound sense) will aid your understanding ofthe factors involved. Some form of roof aerial is to berecommended when using the AR9ooUK in the car - if youhave a favourite band, an aerial for that band is a good ideaand again your Dealer can advise.