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*LOCKOUT This is a dual function key which stops the*LOCKOUT This is a dual function key which stops the reception of unwanted signals in the scan or manual.,modes. It also selects the frequency steps in the search mode. *[INC reception of unwanted signals in the scan or manual.,modes. It also selects the frequency steps in the search mode.long as desired. This gives the user a chance tolong as desired. This gives the user a chance to make a note of the frequency or put it directlyinto one of the memories simply by pressingENT followed by the memory location (e.g. Co9). Searching resumes on pressingSEARCH. W This selects AM or FM during initialprogramming (generally speaking everythingoutside the Air Band is FM). THE In the search mode, it is possible to obtain RED 4 manual operation, stepping up or down by and 7 repeatedly pressing one of these keys, oraltering direction of the search, resuming bypressing the search key. CLEAR If an error is made when programming afrequency, the clear key may be used to eraseit. 0 - 9 Frequency entry keys. ENT Enters a frequency into the memory frommanual, scan, or search programme modes. A - E Selects from one to five memory banks. DISPLAY In addition to the frequency, the display showsthe memory bank or banks in use (A - E), thesearch increment (5,10,12.5 or ZSkHz), mode(manual MAN, scan SCAN, search SRCH orsearch programme PROG), delay (DLY) 01'hold (HLD), priority (PRY),Direct access(DIR-ACC), AM or FM mode, lockout of ascan channel (L/O), low battery indicator(Bat-low), memory bank and channel number. OPERATION. SEARCH To look for active frequencies within a chosen MODE. range press SEARCH PROGM, one of theletters A - E, AMFM to select mode (UsuallyFM outside the Airband). the lower limitfrequency may now be entered (the decimalpoint may be ignored) followed by pressing theENT key. To enter the upper limit, press thePRY LL/UL key followed by the frequency andthen ENT. The search increment may now beselected by pressing LOCKOUT/IN C followedby ENT then press SEARCH. The AR900 willstart searching the selected frequency range.Note that recommended search increments are incorporated in the Band Plan and that it iswise to limit the search to about IMHz to avoidmissing anything. Also Note the use of the holdfacility - an active frequency may be held andentered into a memory simply by pressing ENTand then a memory channel (e.g. DIZ) pressingSEARCH to restart. 77w only problem is that itwill replace anything that is already in D12which is then lost, so it is essential to keep trackof what memories are used. Also Note the useof the red 4 and 7 keys described above. Theonly other point to remember is always to enterthe upper and lower limit frequencies by pressing O . ENT even if they are already displayed.SCAN Assuming that you have found a fewMODE. frequencies or know frequencies which youwould like to scan, press MANUAL; selectbank and channel by ENT, A,B,C,D, or E,(note that DIR ACC appears on the displaybecause this is how channels are directlyaccessed in the manual mode) followed by anumber 01 - 20. The frequency displayed isthat which is already in the memory, so besure it is no longer needed because it will belost when a new frequency is entered. If it isneeded, simply re-enter a different channelnumber. If the AR9OOUK is new, thefrequencies entered are merely those used forour pre - sales check and are of nosignificance. Enter the desired frequency bythe numeric keys (the decimal point and final 0or 00 may be ignored), select AM or FM(Airband AM) and press ENT. Repeat thisprOcess for other channels. Scanning is started(or restarted) by pressing SCAN. Whilstscanning, banks may be temporarily added ordeleted by one or more of the letter keys AB. These act as an on/off switch - press onceto switch from on to off, or vice versa, andagain-to reverse the process. Channels not ofcurrent interest may be locked out by the useof LOCKOUT/INC, and the lockout removedby accessing the channel in the manual modeand again pressing the LOCKOUT/INC key.The DELAY HOLD key, if pressed willactivate the delay of about 6 seconds, a secondpress removing it. For correct operation of