AR1500 op man book BODY
Contents
1. eesesseeesseseesseesseessesssesesseeesstesseesseesseeesseetssresseesseessseeesees Bed PeO eran aik T T a P E EE EET 8 0 Memory lockout neonne ena an a a E EEAS 8 9 Memory Dank l cko t ana a e E a a AE aes a E eiaa 18 19 20 21 21 21 22 23 23 24 24 AR1500 Operating manual Notes This procedure resets the microprocessor and clears the contents from the memory channels they will now be blank The search banks may differ from the defaults shown in this manual in this case you will need to reprogramme them You have instructed the operating system of the AR1500 to receive selected bands with selected Intermediate Frequencies IF if your keystrokes faithfully followed the above then you will have an unbroken coverage from 500 kHz to 1300 MHz without gaps If you receiver a lt Fr Err gt message you have probably made a mistake try again Note To ensure the best microprocessor stability never delete ALL memory channels from a scan bank it is a good idea to leave at least one active channel in each bank i e 000 100 200 etc Do not limit the scan range to a memory bank which is totally empty 12 Optional accessories DA3000 Wide band discone aerial 25 MHz 2 000 MHz WA7000 Active wide band compact aerial 30 kHz 2 000 MHz LA320 Longwave shortwave active desktop loop aerial NiCad pack Additional internal NiCad pack State if EX 3 Pin ABF125 VHF Airband filter Service information2. 1991 1992 1993 AOR UK Ltd 1 1 Accessories supplied DA900 single wide band whip aerial for VHF and UHF SW wire aerial wire terminated in a BNC plug for shortwave AC charger Internal NiCad rechargeable battery pack Dry battery case to house 4 x AAA Alkaline cells 12V DC lead fitted with a cigar lighter plug for mobile operation Soft case Belt hook Earphone Operating manual This manual covers the AR1500 AR1500E and AR1500EX models AR1500 Operating manual 2 Table of Contents 1 Introduction amp accessories cccccccccesccccssssececesssecececsesseceesssseeecessseeeceesseeees Tel Accessories Supplied co x 25 co ce sdasd ada cens nan ei a Gin edene maenteta ERE a 2 Table of contents this Pa e cis c cassssavatcesasassdesnrsnsnsasiacanssanctceostiatapesadacdess tendeaeadianss C3 Major LEAVE OS osaan aeaea ueaaaes a tecesta eae eee N A Precautions cinn es tote teeeesteetie et alls e a a et iteel attendee Gay Ng ADS GLENN 5 EE act E AEE E A EEE TT 4 2 LOOK AMER your TECCLV ED 2 catea ienna e a aa T a Ta s BES Power rere T S a aae a A O Ei A E ia 4 4 Aerial connection senao aE E EE a SS EE TE 5 Controls and functions eeeeeeeeeeeeeeeeeeseseseeseressesrrereesssssserereesessssesrreeeeeessesrrees Ded SIG ame E EEEE E EE E E AEE E Close up views Of the ARIS00 ccccccccccscccesnseseescesssscecsseeecsseeecseeessueseeseeeeseeensas Sade Frontpanelen sspe iaren a rises
3. jack socket 6 AR1500 Operating manual 1 Introduction amp accessories Thank you for purchasing the AOR AR1500 compact all mode hand portable receiver The ARI1500 is a highly sophisticated piece of equipment using the very latest in electronics design and technology It is important that you carefully read this handbook and familiarise yourself with the receiver before placing it into operation Every effort has been made to make this manual correct and up to date Due to continuous development of the receiver and by error or omissions anomalies may be found and this is acknowledged Most apparent faults are due to accidental misoperation of the receiver carefully read all of the manual before deciding to return the receiver for repair Although carefully designed the receiver like all receivers suffers from internal noises known as spurii They are a product of the receiver s circuitry and do not represent a fault The AR1500 is designed to be particularly sensitive for hand held operation for this reason strong signal mixing or overload may be experienced if used in strong signal areas or when connected to an externally mounted aerial such as a discone microprocessor noise may also be audible on certain frequencies and modes This manual is protected by copyright AOR UK Ltd 1992 1993 No information contained in this manual may be copied or transferred by any means without the prior written consent of AOR UK Ltd
4. BANK LOCKOUT For example to lockout search bank 3 SEARCH BANK 3 BANK LOCKOUT Note To release this facility requires the preview and unlocking of frequencies it is preferable to use program search bank to restrict the search process where required 27 AR1500 Operating manual Turning the DIAL rotary tuning control while scanning or searching causes the process to stop but leaves the receiver in memory select mode so that you may manually step through the memory channels using the rotary tuning control This is a very convenient feature SEARCH BANK 9 can only be searched on it s own it cannot be added to a group 9 2 Pre programmed search banks For your convenience the AR1500 search banks have been pre programmed at the factory so that you may use the facility without delay Of course you may reprogramme the limits and modes anywhere with in the coverage of the receiver 500 kHz 1300 MHz The factory defaults are as follows some sets may vary from the table shown below Bank 1 Shortwave 2 30 MHz 5 kHz step AM Bank 2 VHF FM 88 108 MHz 50 kHz step WEM Bank 3 VHF Air 108 138 MHz 25 kHz step AM Bank 4 UHF Air 225 400 MHz 50 kHz step AM Bank 5 VHF Amateur 144 146 MHz 12 5 kHz step NFM Bank 6 UHF Amateur 433 435 MHz 25 kHz step NFM Bank 7 VHF Marine 156 163 MHz 25 kHz NFM Bank 8 VHF PMR 165 174 MHz 12 5 kHz step NFM Bank 9 C Mobile 890 905 MHz 12 5kHz step NFM Bank 0 C Base 935 950 MHz 12
5. many forms such as an increase in background noise desensitising of the receiver or mixing of many stations together The attenuator switch may help in many cases to reduce or eliminate these effects Place the switch into the LOCAL position where the receiver is less sensitive switch Down This reduces the level of signals reaching the receiver s circuitry and helps the receiver cope with strong signals Reference is made earlier in this manual to the use of stub filters should you encounter interference or breakthrough of this type please refer to the earlier section 4 4 5 KEY LOCK switch This switch disables the keypad and rotary tuning control This prevents accidental change of frequency while the receiver is being carried around but is still in use Press once to activate the word LOCK appears on the LCD to confirm operation Press a second time to de activate the lock facility 6 BFO Beat Frequency Oscillator switch This switch only operates in the AM Amplitude Modulation mode and is used to resolve SSB Single Side Band transmissions SSB is used mainly on the shortwave bands by commercial services not broadcast such as Oceanic Airband Ship Shore and Amateur Band SSB generally enables longer range service than AM and is used for voice communications The switch as two positions Off switch Up and On switch Down Please refer to the SSB section for a fuller explanation Ts EAR Earphone socket This sock
6. NFM not WFM 29 AR1500 Operating manual 9 7 Releasing Search bank lockout or individually locked out frequencies Search bank lockout functions by locking out the first frequency in the search bank To release the lockout status requires this frequency to be released Note the frequency you are looking for if still using defaults refer to the table in section 9 2 The following process allows you to scroll through the list of locked out frequencies the first locked out frequency in the bank may be easily located SEARCH BANK PROG LOCKOUT The first of the locked out frequencies will appear on the display The lt L OUT gt indicator will be flashing on the LCD to show the status You must unlock frequencies one by one To unlock a frequency press LOCKOUT To skip over the frequency without altering it s lockout status press ENTER Locate the first frequency of the desired search bank and unlock it To escape from this procedure press MANUAL 9 8 Re programming search bank limits Before you change the pre programmes search bank limits it is a good idea to note the existing data section 9 2 so that they may be re programmed back to their original defaults at a later date In fact you may be happy with the defaults in which case you may choose not to alter their content Let s assume you wish to re programme SEARCH BANK 2 to cover a specific part of the 2m Amateur Band 145 600 145 775 MHz 25 kH
7. See the notes regarding aerials in section 4 4 13 Specification Model AR1500 Receiver coverage 500 kHz 1300 MHz Receiving modes AM FM Narrow FM Wide and SSB with the BFO switched On USB LSB amp CW 900 plus 100 reserved for auto memory in bank 9 1000 total 10 x 100 20 channels per second approx 10 total Bank 9 reserved for auto memory 2 seconds approx 9 standard search banks plus one search bank for the automatic search pair of bank 9 20 steps per second approx Programmable in 5 amp 12 5 kHz steps to a maximum of 995 kHz i e 5 10 12 5 15 20 25 50 etc Any one of the 1000 memories may be used as priority Sampling is every 2 seconds approx FM Narrow 0 5uV or better for 12dB across most of the range AM 3 0uV or better for 10dB S N across most of the range SSB 1 5 uV or better across most of the range Note Reduced sensitivity below approx 2 MHz all modes Continuous 4 6 kHz approx One 50 OHM BNC socket on top case gt 100mW 10 distortion Number of memory channels Scan rate Number of scan banks Scan delay time Search banks Search rate Search step size Priority channel AUX Receiver sensitivity BFO range Aerial connection Audio output 31 AR1500 Operating manual AR1500 Operating manual 11 Microprocessor reset 9 SCAU HN TINO cat tt os sta cctcillt xs coal a ea ake Adel tal oe ck se aah i
8. WFM 6 3 Basic manual operation 1 Entering a frequency through the keypad When the word lt MANUALS gt is displayed you may enter frequencies directly into the receiver via the keypad if the word lt MANUALS gt is not displayed press the MANUAL key now section 5 2 item 6 Enter the desired frequency via the keypad section 5 2 item 1 ensuring you enter the decimal point after the MHz position You don t have to enter any trailing zeros as they will be automatically added by the microprocessor once you have selected the decimal point followed by the enter key If you attempt to enter a frequency which is out of range a frequency error message 1s displayed lt Fr Err gt For example if you wish to select 131 000 MHz carry out the following keystrokes first ensure the word lt MANUAL gt is displayed see above 1 3 1 0 0 0 ENTER or 1 3 1 ENTER or even 1 3 1 ENTER 2 Clearing incorrect frequency input If you make a mistake while entering frequencies you may clear the input by pressing the key twice this key has a dual operation both of decimal and clear section 5 2 item 2 3a Changing mode Mode may be changed while in MANUAL or SEARCH modes when either the lt MANUAL gt or lt SEARCH gt indicators are displayed Most of the time you will want to change mode while in the MANUAL mode when tuning or entering frequencies into memory Ensure the word lt MANUAL gt
9. are exhausted usually the Liquid Crystal Display fails to operate in this condition NiCads are prone to memory effect as a result they may have to be cycled fully charged then used until flat 3 or 4 times before they provide a satisfactory period of operation Once first charged you should never again leave the NiCads in a flat condition Although you may charge the NiCads in order to top up their capacity if you have only used the set for an hour or two the NiCads should be cycled at least once per month to ensure continued long term reliability Important Do not over charge the NiCad pack 15 hours is sufficient from flat In severe cases of over charging high temperatures may can be generated this can result in damage to the NiCads and to the receiver If this point is ignored there is a small but potential danger of personal injury due to explosion Never short circuit NiCad batteries the effect is similar to over charging but happens very quickly Never attempt to charge dry batteries The internal NiCad pack is located in the battery compartment on the rear lower half of the receiver The NiCad pack connects to the receiver by a small cable and connector affixed to the NiCad pack although the connector is polarised be careful not to force reverse the connection An additional NiCad pack may be purchased and carried with you The internal pack may be replaced by a fresh pack or dry battery case within a few moments when
10. both frequency and mode into memory AM FM WFM but not SSB Memory banks are numbered from 0 to 9 and memory channels from 00 to 99 i e 00 01 02 99 This provides effective channels from 000 to 999 bank 0 channel 00 to bank 9 channel 99 Note Memory bank 9 is reserved for auto memory for this reason you should not manually enter memories into this bank channels 900 999 Refer to section 10 The memory location is displayed on the left hand side of the LCD as a single three digit number from 000 to 999 The first digit is the bank number and the last two digits the channel number so that bank six channel seven is shown as 607 During the manufacture and testing of the receiver various test frequencies are entered into the receiver s memory banks the memory locations are unlikely to be blank Note scan amp search It is important to understand the difference between scan and search modes In scan mode the contents stored in the memory channels may be reviewed very quickly for activity scanned In search mode the bottom and top frequency limits are specified along with the mode and search step When the search key is pressed the receiver starts stepping through the frequency range between the specified limits in the programmes step size looking for active frequencies 19 AR1500 Operating manual 7 Single Side Band Operation This advanced mode is a special form of communication used for point to point
11. contact mainly on shortwave this includes long range Oceanic Airband Marine and Amateur Band Amateur Band radio enthusiasts use SSB to increase the distance covered DX long distance on the shortwave VHF 144 MHz 2m band and 432 MHz 70cm band SSB is divided into two main types Upper Side Band USB and Lower Side Band LSB Morse code which is sometimes referred to as continuous wave CW may also be received while in the SSB mode Received audio may sound a little strange at first many people comment that it sounds like Micky Mouse or Donald Duck this is normal With a little practice you will soon get used to the tone results can be very surprising so stick with it A Beat Frequency Oscillator BFO is used in AM mode The BFO rotary tuning control section 5 1 item 2b is used to clarify the received signals once the BFO switch section 5 1 item 6 is depressed Although the receiver features no specific SSB filters the results can be very good especially on the less crowded Oceanic Airband frequencies 1 Press the MANUAL key to select manual tuning mode The lt MANUAL gt indicator will appear on the LCD 2 Ensure the BFO rotary control is centred in the 12 o clock position 3 Select AM mode using the AM key The lt AM gt indicator will appear on the LCD to confirm operation 4 Depress the BFO switch on the top panel There is now indicator to confirm the selec tion of the BFO the tone of the background noise
12. down arrow key is depressed for more than approx one second the search or scan will re start but in a downward direction 8 LIGHT Pressed momentarily this key activates a light behind the LCD This light in intended for night time operation or when the unit is located in areas of low level lighting The lamp automatically switches Off after about six seconds in order to reduce battery drain 9 PROG This key is used to select memory input while in manual mode and to initiate the programming of banks while in search mode 10 LIMIT This key is used in manual mode to select the AUX priority function It is also used in conjunction with the PROG key while programming search banks 11 BANK This key is used in manual mode to recall a memory channel It is also used to select the desired bank when in search or scan mode 12 STEP This key is used in manual mode to select the required step increment for the rotary tuning control The steps may be in multiples of 5 kHz or 12 5 kHz to a maximum size of 995 kHz Possible choices being 5 10 12 5 25 50 kHz etc 13 W FM Used to select the receiving mode of WFM Wide band Frequency Modulation while in manual search or scan modes This mode is used mainly by VHF FM broadcast stations and TV sound transmissions 14 AM FM Used to select the receiving mode of AM Amplitude Modulation this being used by shortwave broadcast services WHF UHEF airband and some PMR services It is al
13. is displayed you may change mode between AM FM narrow by pressing the AM FM key section 5 2 item 14 The selected mode is indicated on the display lt AM gt or lt FM gt To select WFM mode press the WFM key the lt WFM gt indicator appears on the LCD To select SSB mode press first select AM by pressing the AM key Now depress the BFO 15 AR1500 Operating manual switch on the top panel section 5 1 item 6 Ensure the BFO rotary control section 5 1 item 2b is centred at the 12 o clock position There is no BFO indication on the LCD For example to set the receiver to 131 050 MHz AM mode 1 3 1 0 5 ENTER AM Notes AM is used by broadcast services through medium and shortwave it is also used by VHF and UHF airband and some PMR Private Mobile Radio and public utility services FM narrow is used by most PMR and utility services WHF UHF Radio Amateurs and mobile phones WFM wide is used by VHF broadcast services between 88 108 MHz and TV sound in the UHF band SSB Single Side Band is used mainly in the shortwave bands between 1 6 MHz 30 MHz by point to point non broadcast services such as Oceanic Airband Ship to Shore Information Services VOLMET Search and Rescue Radio Amateurs etc The AR1500 is capable of resolving USB generally used by commercial non Radio Amateur services LSB used by Radio Amateurs below 10 MHz Radio Amateurs use USB above 10 MHz by Interna
14. is intended only to charge the NiCad battery pack while the set is switched Off and not to power the receiver Should you wish to use the set via the 12V DC input socket an additional regulated 11 18V DC regulated power supply should be used the current capacity should be 300mA or greater A full charge from when the NiCad pack is fully drained will take approximately 15 hours with the receiver switched Off A fully charged NiCad pack should provide a few hours of average use this will depend operational parameters settings such as volume will have great effect If an external regulated power supply is used or the DC lead supplied the set may be operated while the NiCads are still fitted If used only in the home or vehicle the AR1500 internal NiCad pack may be removed as long as an external regulated power supply or car battery is in use however the supplied AC charger cannot be used as a power supply The NiCad will only charge with the power switch turned Off Note Depending on tolerances the ARISOOEX may require the NiCad to be left in place while the set is powered via an external DC supply if the set fails to power up re fit the NiCad pack The low battery indicator lt BATT gt will provide little or no warning when used with the NiCad pack due the characteristics of NiCad cells Adequate warning should be provided when using Alkaline batteries Background noise may still be heard from the loudspeaker even though the batteries
15. search any frequency range you wish by simply reprogramming the parameters of search bank number 9 If you prefer you can still locate and store frequencies into the receivers vast memory store using conventional manual methods Lockout Memories and search banks may be locked out for the days when you don t wish to listen to something you have previously programmed The search banks may be programmed time and time again by the user In search mode up to 1000 continuously occupied frequencies 100 in each of the 10 search banks may be locked out so that annoying noises and unwanted signals can be eliminated Should you encounter noise mobile control signals or beacons they can be locked out with a single press of a button so that the frequency will be skipped when next searched Versatility The AR1500 can meet a number of requirements to satisfy Airband or Marine enthusiasts Professional off air monitoring and of course casual listening too The World s shortwave and Amateur bands can be monitored even the longer range Oceanic Airband and ship to shore The AR1500 is supplied with all the accessories required to enable you to start listening straight away The AR1500 is powered from an internal NiCad rechargeable battery pack supplied This pack can be recharged using the supplied AC charger or 12V DC lead and may be used over and over again Spare NiCad packs may be purchased and the internal pack replaced by a fully charged pack
16. the first pack becomes depleted this will enable extended operation when away from the home or vehicle The battery compartment cover is removed by a downward sliding motion Caution Do not attempt to charge amp operate the receiver if the NiCad is totally flat you must allow at least five minutes of charging before switching the receiver on even if you are using an external regulated power supply Failure to comply with this point may cause damage to the set s power regulator AR1500 Operating manual 4 4 Aerial connection The aerial input is of the standard BNC type allowing straight forward connection to almost any VHF UHF aerial There is also a top panel switchable attenuator to increase versatility in areas of strong signals Two aerials are supplied with the receiver One is the highly acclaimed DA900 wide band VHE UHF flexible whip The second aerial supplied is a 5m approx length of wire terminated in a BNC plug this is intended for reception on the shortwave bands The AR1500 is designed to offer maximum sensitivity in the hand held format and performs exceptionally well using the supplied aerials However in areas of strong signals or when connected to external aerial such as a discone cross modulation and overloading may be encountered Overloading of this nature will not damage the receiver s circuitry the top panel attenuator should help reduce these effects Active aerials and preamplifiers are not reco
17. will change though 3 Key in the required frequency to the nearest 5 kHz A good place to start listening is the 20m Amateur band 14 000 to 14 350 MHz USB as there is usually plenty of activity Although you may not be able to enter the exact frequency such as 5 616 MHz you must select 5 615 or 5 520 MHz the BFO rotary control will enable you to fine tune by approximately 4 6 kHz to effectively tune in between the gaps to provide continuous coverage throughout the receiver s range 6 Program a 5 kHz step size for tuning this is the smallest increment possible for the main tuning control STEP 5 ENTER 7 Open the squelch control section 5 1 item 2a by rotating fully anti clockwise until background noise is audible through the speaker 8 Use the main rotary tuning control to tune as close to the desired frequency as possible Clockwise rotation increases the displayed frequency anti clockwise rotation decreases the displayed frequency in this example by 5 kHz with each click 9 Rotate the BFO rotary control until a near natural pitch is achieved Clockwise rotation 18 AR1500 Operating manual Means press the MANUAL key followed by the BANK key followed by the three numeric keys 1 7 and 6 Words contained in angular brackets lt DELAY gt refer to indications displayed on the Liquid Crystal Display Where a mode of FM is referred to this indicates NFM Narrow FM WFM Wide FM is referred to as
18. within a few moments adding to the operational time when away from the home or vehicle When connected to a nominal 13 8V DC power source using the supplied lead in the car or at home the AR1500 may be operated with the NiCad pack still fitted A dry battery case is provided as a standard accessory 4 x AAA Alkaline cells may be fitted and carried with you as an assurance against flat batteries just when you need to use the receiver most Aerial input The aerial input is of the standard BNC type allowing straight forward connection to almost any VHF UHF aerial There is also a top panel switchable attenuator to increase versatility in areas of strong signals AR1500 Operating manual 4 Precautions 4 1 Location Do not use or leave the receiver in direct sunlight It is best to avoid locations where excessive heat humidity dust and vibration expected Always treat the receiver with care Take care to avoid spillage or leakage of liquids into the receiver and AC charger Special care should be taken to avoid liquid entering via the power jack 4 2 Look after your receiver Always keep the receiver free from dust and water Use a soft dry cloth to gently wipe the set clean Never use chemicals such as benzine of thinners which will damage the plastic outer case and parts 4 3 Power requirements The AR1500 is designed for operation only from an internal battery pack or a regulated DC supply connected to the charge jack sock
19. 5 kHz step NFM Bank 9 reserved for automatic memory facility Should you choose the programming of these search banks need not have any relationship to the factory defaults this ensures maximum flexibility As you can see from the above list each search bank can store lower and upper frequency limits step size used for searching and mode AM NFM WFM not SSB The step size may be programmed in multiples of 5 or 12 5 kHz to a maximum of 995 kHz i e 5 10 12 5 15 20 25 37 5 50 100 kHz etc 9 3 Searching all banks To search all search banks excluding those locked out and excluding bank 9 press SEARCH The receiver will start searching all search banks it will not try to search those locked out Searching all search banks may still take quite a while even though the receiver s scan process is very rapid You need to set the squelch control to cancel the background noise before the set can search The receiver may find it difficult to differentiate between weak signals and background noise so careful and occasional re adjustment of the squelch control may be necessary To start searching at a particular bank let s say search bank 3 press SEARCH 3 26 AR1500 Operating manual The NiCads are NOT factory charged and will have little or no energy when shipped from the factory The NiCads may be charged using the supplied AC charger or DC lead Note The AC charger should NOT be regarded as a power supply It
20. AR1500 Operating manual Power requirement Power consumption Size Weight Display 6V DC from built in NiCad battery pack or 11 18V DC from CHG jack or 4 x AAA dry cells dry case provided 100mA approx 55mm W x 152mm H x 40mm D approx excluding projections 360g approx including NiCad pack Liquid Crystal LCD with switchable light for areas of low level lighting Specifications subject to change without notice due to continuous 14 Index AC mains supply 6 accessories 31 Aerial 8 Aerial connection 8 Aerial input 10 Aerial Tuning Units 8 Airband 16 AM 15 16 AM FM 13 Amateur band 16 ANT 10 ARROW 13 20 attenuator 8 10 ATU 8 auto memory 19 Automatic memory input 29 AUX 21 22 BANK 13 21 Bank 9 26 banks 22 BATT 7 batteries 6 battery compartment 6 7 Beat Frequency Oscillator 9 BFO 9 10 breakthrough 8 Broadcast 16 cables 6 Charger 14 charger 6 7 CHG 14 clean 6 CLEAR 12 21 Clearing 15 Clearing memories 21 Controls 9 Conventions 14 32 development of the receiver E amp OE copyright 1 corruption 30 cross modulation 8 DA3000 31 DA900 8 10 defaults 26 DELAY 14 20 25 DELAY HOLD 14 DIAL 9 20 26 discone 8 DOWN ARROW 13 20 dry batteries 6 DX 10 EAR 10 Earphone 10 EARTH 6 EEPROM 19 ENTER 12 Entering 15 FM 15 16 Fr Err 15 Frequency list 16 Front panel 12 fuse 6 ground 6 HOLD 14 20 21 25 internal NiCad pack 7
21. ARCH 249 125 ENTER 4 PROG 420 LIMIT 606 995 SEARCH 249 125 ENTER 5 PROG 607 LIMIT 797 995 SEARCH 58 075 ENTER 6 PROG 798 LIMIT 1105995 DOWN KEY 249 125 ENTER 7 PROG 1106 LIMIT 1300 DOWN KEY 556 325 ENTER ARI500EX it s slightly shorter BANK 1 PROG 0 5 LIMIT 95 995 SEARCH 556 325 ENTER 2 PROG 96 LIMIT 299 995 SEARCH 556 325 ENTER 3 PROG 300 LIMIT 512 995 SEARCH 249 125 ENTER 4 PROG 513 LIMIT 797 995 SEARCH 58 075 ENTER 5 PROG 798 LIMIT 1105995 DOWN KEY 249 125 ENTER 6 PROG 1106 LIMIT 1300 DOWN KEY 556 325 ENTER 8 Switch Off the receiver and remove the NiCad pack 9 Carefully slide the switch into it s original position and replace the protective tape 10 Insert the NiCad pack once again and switch On 11 Test the receiver fully 30 3 AR1500 Operating manual 3 Major features The AR1500 is the World s first true hand held wide range receiver offering SSB as standard from the factory Coverage is from 500 kHz all the way to 1300 MHz without any gaps in the range Channel steps are programmable in multiples of 5 kHz and 12 5 kHz up to 995 kHz the BFO will allow tuning between these steps for SSB operation All popular modes are provided NFM WFM AM and SSB USB LSB amp CW with the BFO switched on A rotary tuning control is fitted to the top panel to further incr
22. Ea Ea T E O ae Ma aAa aoei 923 CHG Charger input SOC KEL c 5 ests shu acess coe causes enaa a Nra iie 6 SB ASIC OPERATION iacsstia ce5 caciccaisl ecstoiseneeteaina e i E a RS Ged o 1e 321010 I PARIET A EIE E PEE EEEE E EE AE EE ss 6 2 CONVENE OMS cies ae ges a e a a a S 6 3 Basic manual Cer ALLOU sca 5c secs s was goes das sa ds ganic dae sods ames odgu ssc saciec ease genes 1 Entering a frequency through the keypad eee eecceeceeeeeceeeeeeeteeeeeeeeeeneeeee 2 Clearing incorrect frequency AnpPUl eyes ces ysegeacsvese oes scesea ws ecoasessecassesvesnseosnaetce Bas Changms BOS zs 3 4s aa olhczse an baa dzctots sacs lt aoezecs ne zy acevn semis E 3b Frequency list audible from various parts of the UK oe eeeeeeeeeeeeteeeenteeees At TURING INE TECCIVER aeee a a a a a SAES EA 7 Single Side Band Operation cccccccccceessecesscecessceceseeeceeeecsseeecseseeseeeesaees 8 Scan mode memories c ccc cc cscececsesseseescsessessssssscessssssssssessceseusssessssesessess 8 1 Storing frequencies to MeEMOry ss sssessesssesessseesstessttssersseessseeesseesstesseesseessseesseese 8 2 Recalling previously stored memory channels eseeesseseeeesseesseseresressrsrresresseseresreses 8 3 Clearing Memory Contents ioen erae e Ea e REA E aiiai Bete Pionty AUX channel isdie e a E E TRS et 8 5 Scanning memory channels and DankS eeecceceeeeeeeeececeeececsceecseeeeeneeeeseeeenaeeees 8 6 Problems with scanning
23. OLD facility The DELAY HOLD key toggles between the two settings and the status in indicated on the LCD as lt DELAY gt or lt HOLD gt If set to DELAY the scan or search will stop on a busy frequency but will automatically resume scan or search approximately 2 seconds after the frequency has become quiet when the squelch closes If set to HOLD the scan or search will stop on a busy frequency and stay there until you tell the receiver to move on by pressing the SCAN or SEARCH keys depending upon which you are using If the DOWN ARROW key is pressed during scan and search the process stops Further presses of the DOWN ARROW causes the receiver to step one channel backward this is particularly useful for taking a second look a channel which has just been passed 25 AR1500 Operating manual Using the same method you may program the receiver to scan the contents of 1 memory bank only without actually locking out the other banks this being the preferred method To scan only memory bank 3 over and over SCAN BANK PROG 3 LIMIT 3 ENTER 8 8 Memory lockout If you wish to lock out a specific memory channel this may be achieved by two methods 1 When scanning and the receiver stops on an unwanted busy channel press LOCKOUT The receiver will immediately move onto the next channel and continue scanning 2 Select the memory channel in MANUAL mode as per section 8 2 then press LOCKOUT i e to se
24. Oscillator control is the inner knob of the dual concentric rotary controls The knob only functions in AM mode when the BFO mode switch 6 is depressed The control is used to clarify SSB Single Side Band transmissions by Radio Amateur Oceanic Airband Marine and other services mainly found on the shortwave bands Without this control the audio from these services may sound very distorted this is quite normal The usual position for this control is 12 o clock The control shifts the BFO by approximately 4 kHz 6 kHz Please see the section on SSB operation for further information 3 DIAL tuning control The DIAL or rotary tuning control is located on the top face of the cabinet This control changes the received frequency up and down in manual amp search mode and changes the channel in scan mode The control has a convenient click style operation the tuning step size may be programmed from the keypad AR1500 Operating manual 4 LOCAL DX switch attenuator The attenuator switch has two positions marked LOCAL and DX For most situations the DX or long distance position is used switch Up where the receiver is at it s most sensitive When operating in the presence of strong signals such as TV or FM broadcast Amateur Radio CB PMR some interference may be experienced This is also true when the receiver is used in lofty locations such as hill tops or in built up areas This interference may manifest itself in
25. and is caused by the internal switching of circuitry 21 AR1500 Operating manual During scan and search when a busy frequency is found the scan or search will stop What happens next will depend upon the setting of the DELAY HOLD facility The DELAY HOLD key toggles between the two settings and the status in indicated on the LCD as lt DELAY gt or lt HOLD gt If set to DELAY the scan or search will stop on a busy frequency but will automatically resume scan or search approximately 2 seconds after the frequency has become quiet when the squelch closes If set to HOLD the scan or search will stop on a busy frequency and stay there until you tell the receiver to move on by pressing the SCAN or SEARCH keys depending upon which you are using If the DOWN ARROW key is pressed during scan and search the process stops Further presses of the DOWN ARROW causes the receiver to step one channel backward this is particularly useful for taking a second look a channel which has just been passed Turning the DIAL rotary tuning control while scanning or searching causes the process to stop but leaves the receiver in memory select mode so that you may manually step through the memory channels using the rotary tuning control This is a very convenient feature Note To ensure the best microprocessor stability never delete ALL memory channels from a scan bank it is a good idea to leave at least one active channel in each bank
26. attery compartment is located on the lower rear side of the cabinet and may be easily accessed by sliding open the compartment cover using a downward sliding motion 6 AR1500 Operating manual 9 4 Problems with searching If for some reason your receiver refuses to search the bank you select and jumps to another bank you have probably accidentally used PROGRAM SEARCH BANK To clear the apparent problem key in the following SEARCH BANK PROG 0 LIMIT 8 ENTER Search all banks except bank 9 which must be searched individually It is also worth checking that all the frequencies are not locked out section 9 7 and that the start and end programmed frequency limits are different section 9 8 9 5 Program search bank When you grow tired of searching all search banks you may program the receiver to search only one bank or a range of banks by programming a start and finish bank For example if you wish to search banks 5 to 8 inclusive SEARCH BANK PROG 5 LIMIT 8 ENTER Using the same method you may program the receiver to search bank 2 only without actually locking out the other banks this being the preferred method To search only bank 2 over and over SEARCH BANK PROG 2 LIMIT 2 ENTER 9 6 Search bank lockout Should you wish to lock out a specific search bank it is best to first open the squelch control to stop the set from searching The format is SEARCH BANK BANK NUMBER
27. can and Search There are 1000 memories in total arranged in 100 memories x 10 banks there are also 10 additional programmable search banks Each memory will store frequency and mode NFM WFM or AM not SSB the search banks will also store the step increment There is a massive EEPROM store for all memories and search banks so that no memory backup battery is required The memories may be over written time and time again Automatic memory The AR1500 has a new automatic memory feature which automatically stores busy channels found when hunting for activity using search bank number 9 into the 100 memory channels of scan bank number 9 900 999 4 AR1500 Operating manual Press ENTER the bank indicator will flash 6 the channel indicator will start flashing 73 you don t press enter that s it It is sometimes worth pressing the DELAY HOLD key so that lt HOLD gt is indicated on the LCD this prevents the set from continuing it s search and gives you plenty of time to enter the memory details 10 Automatic memory input The AR1500 features an Automatic memory function Search and Memory Bank 9 is reserved for this special function For this reason you should not manually enter frequencies into bank number 9 To perform the automatic memory function you first need to program a pair of frequencies mode and step size into bank 9 as shown in section 9 8 Carefully set the squelch threshold to allow the receiv
28. characteristic is quite normal and does not constitute a fault the effect is greatly limited by bearing the above points in mind when programming the memory channels and banks Memory channels and banks may be locked out if for some reason you do not wish to scan them To sean all memories excluding those locked out press SCAN The receiver will start scanning all 1 000 memory channels it will not try to scan unoccupied channels or those locked out Scanning all 1 000 memory channels could still take quite a while even though the receiver s scan process is very rapid You need to set the squelch control to cancel the background noise before the set can scan or search The receiver may find it difficult to differentiate between weak signals and background noise so careful and occasional re adjustment of the squelch control may be necessary To start scanning at a particular bank let s say memory bank 4 press SCAN 4 8 6 Problems with scanning If for some reason your receiver refuses to scan the bank you select and jumps to another bank you have probably accidentally used PROGRAM BANK SCAN To clear the apparent problem key in the following SCAN BANK PROG 0 LIMIT 9 ENTER Scan all banks 8 7 Program bank scan When you grow tired of scanning all memory channels you may program the receiver to scan only one memory bank or a range of banks by programming a start and finish bank For example if you
29. compartment of most BUT NOT ALL 10 Automatic memory input cee eeeeeeeecneeceaeeeeeeeeaeecaeceseeneeeeeaeeesaeens 29 AR1500 receivers This switch is covered by a protective tape and is connect to a short length of wire If you cannot locate the switch and are not comfortable with lots of button pressing 11 Microprocessor reset croa tee ea ea eagle a 30 please contact your dealer 12 Opti nal accessories ion G aici ssa ses eG RG ade se iain iei Resa cota dhs 31 l Switch the AR1500 Off and remove the battery cover and NiCad pack Remove the protective tape from the slide switch 13 Specification r Geiss E r I a A EE SA A ae A aE SSA S EA tease 31 3 The switch has two positions carefully slide the switch from the first to the second position 14 Mdee aea RED RI UAE DE SPREE a E E EARS GE CERT O E E ARE RAPE 32 4 Insert the NiCad pack and switch on the receiver 5 The display should be blank at this time 6 Carry out the following key strokes very carefully take your time If you make a mistake switch the receiver Off On and start again If the first sequence of BANK PROG has no effect repeat these key presses as required The key strokes should appear on the LCD as you progress o n Z Execute exactly as shown ignore the separator AR1500 amp AR1500E BANK 1 PROG 0 5 LIMIT 1 995 SEARCH 556 325 ENTER 2 PROG 2 LIMIT 299 995 SEARCH 556 325 ENTER 3 PROG 300 LIMIT 419 995 SE
30. d before you press the PROG key If by chance the existing priority channel is busy at that moment then the receiver will jump to the original priority channel preventing you from re programming it The first way to avoid this scenario is simply to ensure you press the AUX PROG sequence in less than 2 seconds which is quite easy Of course if the priority channel isn t busy then there is no problem anyway The second method is to activate the priority facility using the AUX key before reassigning the priority channel number ensure the lt AUX gt indicator is visible confirming operation Because the priority mode is active when you start programming pressing the AUX key during the sequence switches the facility Off instead of On thus avoiding the problem 8 5 Scanning memory channels and banks Manually changing frequency is a slow process In order to catch brief bursts of communica tions such as those from air traffic control towers requires a faster method of frequency change For this reason and to increase the pleasure of operation the memories may be automatically scanned at a relatively high rate under the control of the receiver s microprocessor The receiver is capable of scanning a maximum of about 20 channels per second this is much faster than you can achieve manually 22 AR1500 Operating manual Close up views of the AR1I500 DISPLAY q 10 11 12 a 14 15 3 i 4 4 5 6 T 8 I
31. diocommunications Agency Waterloo Bridge House Waterloo Road London SE1 8UA ENGLAND 4 Tuning the receiver In MANUAL mode you may tune the receiver much like a conventional receiver by use of the rotary control on the top face of the cabinet section 5 1 item 3 Rotating the control clockwise advances the displayed frequency while anti clockwise operation lowers the displayed frequency The display will show an Up or Down arrow as appropriate It is possible to select the size of the channel step used by the tuning control this being selected via the keypad The step size increment may be selected between the limits of 5 kHz 995 kHz in multiples of 5 or 12 5 kHz steps i e 5 10 12 5 15 20 25 37 5 50 100 kHz etc The step size may be selected in MANUAL and SEARCH modes The MANUAL default is a 12 5 kHz step size for most of the range of the receiver however you may change the current size at will First ensure you are in manual mode For example to select a 25 kHz step size STEP 2 5 ENTER The selected step size is indicated on the left hand side of the LCD When selecting 12 5 kHz steps you must use the decimal point in the appropriate position STEP 1 2 5 ENTER 17
32. ease operating pleasure convenience and versatility SSB Single Side Band SSB is a general term given to two additional modes of operation SSB is used by many services especially those on shortwave including oceanic airband to increase the operational coverage of their radio transceivers It s inclusion on the AR1500 adds a new dimension in listening potential to the receiver The two forms of SSB are Upper Side Band USB and Lower Side Band LSB it is also possible to receive Morse code CW using this method The BFO control allows selection of either side band and tuning in between the 5 kHz channel steps All Mode As well as SSB the AR1500 can receive all other popular modes AM Amplitude Modula tion used by broadcast stations airband and some other services NFM Narrow band Frequency Modulation used by VHF Marine band Amateur band and most other services WFM Wide band Frequency Modulation used by Band 2 VHF broadcast stations and TV sound Any mode can be selected on any frequency within the receiver s operating range High sensitivity The AR1500 has been designed to provide maximum VHF UHF sensitivity in a hand held format The unit should easily compare or better other hand held wide band receivers on the market place today in this respect A top panel attenuator is provided to help combat cross modulation and mixing effects in areas of strong signals such as built up areas or hill top locations Memories S
33. er to search then press SEARCH 9 As soon as an active frequency is detected the AR1500 stops searching and automatically writes the frequency to the first indexed channel of memory bank 9 The receiver waits for about 2 seconds then resumes searching even if there is still activity on the frequency and continues until another active frequency is located When all of the 100 memory channels of bank 9 are filled the process starts all over again As the receiver will search in this mode even if there are constant signals the unit may be left unattended building a library of activity The same busy frequency may however be Auto saved a number of times When you are sure plenty of active channels have been located you may place the receiver into SCAN mode and select bank number 9 All the active frequencies located during automatic mode will be quickly scanned to ensure that nothing is missed Lockout may be used to remove unwanted channels from the list of channels to be scanned Memory contents may also be copied to other memory banks for later scanning this reduces the risk of them being accidentally over written For example let s say memory channel 912 has an interesting frequency which we wish to copy to memory channel 123 First recall memory channel 912 MANUAL BANK 9 1 2 then copy it PROG 1 2 3 easy This will save hours of searching and button pressing Note Auto memory only operates in AM and
34. et 11 18V DC Always use the supplied charger supplied DC lead or regulated DC power supply Note The charger jack socket 1 3mm dual concentric is wired positive centre The chassis of the receiver is negative ground The supplied DC lead is fitted with a cigar lighter plug ready for mobile operation For you information the cable is colour coded the plain black wire being negative while the stripe signifies the positive connection If powered from a regulated DC power supply the output should be a nominal 13 8V DC with a current capacity of 300mA or greater The acceptable input voltage is 11 18V DC The UK charger has two cables attached One is terminated in the appropriate power jack plug to fit the charging socket of the AR1500 The second has two bared wires ready for connection to a standard 3 pin mains plug A 3 Ampere fuse should be used in the plug and the cable is colour coded as follows Brown Live Blue Neutral There is no connection to the EARTH connection of the mains plug Always disconnect the charger from the AC mains supply when not in use Warning Never connect the AC charger or DC power supply when dry batteries are fitted in the receiver Dry batteries cannot be charged serious damage may occur if this point is ignored Always remove dry batteries when the set is not being used to avoid leakage which could seriously damage the receiver NiCad pack The AR1500 is fitted with an internal 6V NiCad pack The b
35. et is located on the top face of the cabinet The socket accepts a standard 2 5mm mono jack plug Either an earphone one being supplied as a standard accessory headphone or small external speaker may be connected the impedance should be 8 OHMS or greater When the socket is used the internal speaker is automatically disconnected 8 ANT Aerial input socket Antenna The aerial input is via a high quality BNC connector It s operation is like a bayonet push and twist and is mounted on the top face of the cabinet Two aerials are supplied with the receiver as standard accessories DA900 wide band VHF UHF flexible whip SW wire aerial wire terminated in a BNC connector for use on the shortwave bands Please refer to section 4 4 of this manual for further information and suggestions regarding aerial connection 10 AR1500 Operating manual It is usually convenient to group all similar frequencies and modes together within a memory bank This has two positive benefits firstly it enables you to select one range of frequencies memory channels separately from other programmed channels Secondly it ensures the receiver has as little work to do as possible moving a relatively small frequency from channel to channel and only changing more occasionally This will ensure the fastest possible scanning rate Occasionally when changing mode the receiver will appear to hesitate before moving on even though no signal is present This
36. h mode 5 SCAN This key is used to start the memory scan facility which will cause the receiver to rapidly check the occupied channels of it s memory content for activity busy channels The key is also used to manually advance the scan process if stopped on an unwanted memory channel Of course it is possible to lock out unwanted memory channels to prevent them from being scanned 6 MANUAL This key is used to engage the manual mode of the receiver In this mode and interesting frequency may be directly entered into the keypad or memory channel directly recalled When the receiver is first switch On itis a good idea to press this key so that the receiver enters a known state of operation 12 AR1500 Operating manual When in search mode you may find an interesting frequency which you wish to store for later listening Let s assume that the receiver has stopped on 133 700 MHz AM during search and you wish to store the information to memory bank 6 channel 73 Press ENTER the bank indicator will flash 6 the channel indicator will start flashing 7 3 you don t press enter that s it It is sometimes worth pressing the DELAY HOLD key so that lt HOLD gt is indicated on the LCD this prevents the set from continuing it s search and gives you plenty of time to enter the memory details 8 2 Recalling previously stored memory channels It is possible to store frequencies into any memory location howeve
37. i e 000 100 200 etc Do not limit the scan range to a memory bank which is totally empty 8 1 Storing frequencies to memory While in MANUAL mode it is possible to store the currently displayed frequency and mode into memory by using the PROG PROGRAM key For example let s assume the current display is 126 65 MHz AM and you wish to store it into memory bank 2 channel 41 PROG 2 4 1 you do not press ENTER You will note that after pressing the PROG the bank number started flashing after pressing 2 the channel number started flashing to prompt your input of information Any memory band and channel may be entered in this way To store a totally new frequency and mode into memory you first select the frequency then mode and finally the memory location For example enter 145 600 MHz FM into memory bank 0 channel 23 1 4 5 L 6 0 0 ENTER FM PROG 0 2 3 or 1 4 5 6 ENTER FM PROG 0 2 3 as the zeros trailing the decimal six will be automatically entered by the microprocessor 20 AR1500 Operating manual 7 DOWN ARROW Initially the receiver searches and scans from lower to higher frequencies or from low channel numbers to higher If when searching or scanning the down arrow key is pressed the search or scan stops and the down arrow is displayed on the LCD Subsequent short presses on the down arrow key will step the search or scan downward by one increment If the
38. l increases the received frequency by up to about 6 kHz while anti clockwise rotation lowers the received frequency by a maximum of about 4 kHz It does take a bit of getting used to USB Clockwise rotation of the tuning and BFO control increases frequency but lowers the pitch LSB Clockwise rotation of the tuning and BFO control increases frequency and pitch If a signal sounds particularly distorted and impossible to clarify rotate the BFO control 1 or 2 divisions in each direction and try again Some practice will be necessary You should be very liberal with the use of the attenuator control to prevent signal overloading sections 4 4 amp 5 1 item 4 It is not possible to store SSB frequencies into memory You may store them as AM but fine tuning and switching On Off of the BFO control will be required each time they are recalled 8 Scan mode memories The AR1500 has 1 000 memory channels arranged as 100 memories x 10 banks The 100 memory channels of bank number 9 are reserved for a special automatic memory facility described later in this manual The information stored in the memory channels scan banks and search bank is permanently held in a chip component called an EEPROM Electrically Erasable Programmable Read Only Memory No backup battery is required In the extremely unlikely event you should encounter problems with memory loss or corruption please refer to section 11 It is possible to enter
39. l AR1500 Operating manual 5 2 Front panel 1 NUMERIC KEYPAD 0 9 amp The numeric keypad is located on the front panel underneath the Liquid Crystal Display LCD The keypad is laid out in a logical manner and is split into numeric and command areas The numeric keys are used for entering a frequency step size increment memory channel number bank number etc The key is used as a separator when entering frequency in MHz or the step size in kHz The same keys are used in search mode to select bank number in which case the numbers 0 9 correspond to the ranges specified in the search section of this manual or those programmed by the user 2 CLEAR amp Press the key once to act as a decimal point separator when entering frequency in MHz or the step size in kHz i e 145 5 ENTER MHz frequency entry 1 2 5 ENTER kHz step entry Press the key twice to clear an incorrect entry 3 ENTER Used to ENTER accept a frequency of step size following input from the keypad Itis also used to complete other programming operations such as memory changes 4 SEARCH This key is used to start the frequency search facility which will hunt for signals between two programmed frequency limits in whatever mode and channel step increment is programmed The key is also used to manually advance the search process if stopped on an unwanted fre quency Of course it is possible to lock out unwanted busy frequencies in searc
40. lect memory bank 1 channel 23 BANK 1 2 3 LOCKOUT Take note of the lt L OUT gt indicator A steady lt L OUT gt indicator and lt BANK gt means that the channel is locked out no indicator means the channel is not locked out and may be scanned This is different from that of a specific locked out frequency which uses a flashing lt L OUT gt indication Pressing the LOCKOUT key toggles the status Each time MANUAL is pressed the memory channel advances by one channel This is particularly useful for rapidly locking out or unlocking a number of channels within a bank Method number 2 is used to unlock a memory channel 8 9 Memory bank lockout You may lock out an entire memory bank in one go This can be particularly useful for tempo rarily removing banks from the list of available banks to scan Banks locked out in this fashion may be easily reinstated The format is MANUAL ANY CHANNEL NUMBER IN BANK BANK LOCKOUT For example to lockout memory bank 5 MANUAL BANK 5 0 0 BANK LOCKOUT The lt L OUT gt and lt BANK gt indicators appear on the LCD to confirm operation Bank number 5 will now be skipped when the SCAN key is pressed 24 AR1500 Operating manual 5 Controls and functions The AR1500 receiver is housed in an attractive strong plastic cabinet Controls for operation are located on the top and front face of the cabinet A soft case is provided as a standard accessory to help p
41. mmended the extra gain offered by these aerials can easily overload the AR1500 Should you encounter breakthrough when using an external aerial and the attenuator does not help a simple stub filter placed in the coaxial cable may help This comprises of a T connec tor with an open circuit 50 OHM cable length the stub attached to the T piece A rough calculation for the stub length is as follows 234 Freq in MHz x 0 67 Stub length in feet i e To reduce the strength of BBC Radio 2 on Band 2 234 88 3 x 0 67 1 77 feet or 1 foot 9 inches approx ABF125 A VHF commercial AIRBAND FILTER is now available from AOR to help minimise the potential level of breakthrough when listening to VHF airband in high signal areas or when connected to external aerials Please request the descriptive leaflet for further details Aerial Tuning Units ATU can greatly benefit the shortwave section of the receiver when connected to long wire aerial other than the 5m of aerial wire provided Valuable extra selectivity is provided by the ATU enabling the receiver to single out one band of frequencies while rejecting unwanted transmissions This type of ATU is usually constructed in a small box with about three controls on the front panel The disadvantage is the need to constantly retune the ATU when changing frequency An ATU of this type has no active circuitry it is known as a passive device Active desk top loop aerials for
42. nes toate deltas oo 25 9 1 N tes n sean amp search eatin tales eae ia e acinar nein ences 25 The information stored in the memory channels scan banks and search bank is permanently 9 2 Pre programmed search banks eesseeesseessessseeessstesstessresseesseeesseetsseesseesseessseesssees 26 held in a chip component called an EEPROM Electrically Erasable Programmable Read Only 9 3 Searching FT el 6 21 01 see Re Ai aN Ea RO RSE AD REE RY APR DOERR AR SRO 26 Memory No battery backup is required 9 4 Problems with Se ate Mins 4 ct to scan lt aseGad saccascannands cAansGedesavacuaad pcacaaancsbastwascatncseenees 27 9 5 Progr msearch bank cornia astern ycad gusasde ae E E uses EE S IR RRS 27 In the extremely unlikely event you should encounter problems with memory loss or corruption 9 6 Search bank locko ts umainn a a aE a A T a 27 it may be possible for you to RESET the microprocessor This scenario may occur due to static 9 7 Releasing Search bank lockout or individually locked out frequencies 28 discharge from mobile operation connection to an external aerial shipping in plastic amp 9 8 Re programming search bank limits eee eee eeeeeeeeeeceeeceeeeeceesaeecaecneeeseeeeneees 28 polystyrene materials or from noise on the power feed to the receiver 9 9 Storing search frequencies into MEMOTY ceescecesececeeeeeceeeeeceeeeeceeeeeceeeeesteeeenaeees 28 A small RESET slide switch is located in the battery
43. ptable input voltage range is 11 18 V DC Please refer to section 4 3 of this manual for further information 6 Basic operation 6 1 Background After unpacking the receiver the NiCad pack will require charging You may alternatively connect the receiver to an external DC regulated power supply using the supplied DC lead The receiver should be switched On by rotating the volume control in a clockwise direction from the Off position With the squelch control turned fully anti clockwise to allow sound from the speaker the volume should be adjusted to a comfortable level It is never a good idea to switch on the receiver with an earphone connected there may be an audible click when the unit is switched On or the volume may be set uncomfortably high The squelch control should be rotated clockwise until the background noise is just cancelled This is known as threshold and is the most sensitive setting for the squelch control Do not rotate the control too far clockwise or only the stronger local signals will be heard If you find setting the squelch control difficult try removing the aerial from the receiver It is best to press the MANUAL key at this time to place the receiver in a known state of operation 6 2 Conventions Where text appears in BOLD UPPERCASE the keys are to be pressed exactly as shown Characters are separated by the symbol For example MANUAL BANK 1 7 6 14 AR1500 Operating manua
44. r it is only possible to recall frequencies from banks which are included in the list to be scanned Let s assume while in MANUAL mode we wish to recall the contents frequency amp mode of bank 0 channel 23 you must have something stored in the memory first BANK 0 2 3 You cannot recall memories from memory banks which are locked out If this represents a problem at this time refer to section 8 6 8 3 Clearing memory contents Although you may lockout specific memory channels so that they will not be scanned you may wish on occasion to remove the contents of a memory channel completely This procedure is carried out while in MANUAL mode Let s assume you wish to clear the contents of bank 1 channel 23 CLEAR ENTER PROG 1 2 3 8 4 Priority AUX channel This feature enables you to carry on scanning searching or monitoring another frequency while the AR1500 checks one of the 1 000 memory channels every 2 seconds approx for activity If this channel is found to be active the AR1500 will stop it s current function and switch to the priority channel until the channel clears or you instruct it to do something else The priority facility is particularly useful for keeping an eye on a distress frequency while scanning or searching another frequency band Depending on the frequency and mode stored in the priority channel an audible click may be heard when the facility is active this is quite normal
45. rotect the receiver while in use 5 1 Top panel 1 VOL amp PWR Volume control amp power switch The volume control and power switch is located on the top face of the cabinet next to the aerial input Itis used to set the required audio output from the receiver When turned fully clockwise the volume is at maximum when rotated fully anti clockwise the volume is reduced to mini mum At the fully anti clockwise position the power On Off switch is activated with a click 2 SQL amp BFO Squelch control amp BFO 2a The Squelch control and BFO Beat Frequency Oscillator is located on the top face of the cabinet The SQL squelch control is the outer knob of the dual concentric rotary controls The control is used to eliminate unwanted background noise on unoccupied frequencies Itis also used by the receiver s microprocessor to decide when to stop during scan and search modes The squelch control needs careful setting to achieve optimum operating performance Rotate the control clockwise until the background noise just disappears threshold this is the most sensitive setting of the control In practice the control is usually rotated a little further clockwise beyond the threshold point to prevent the receiver from stopping on noise or very weak and unreadable signals If the control is rotated too far clockwise then weaker signals will be totally lost and only local strong signals will be heard 2b The BFO Beat Frequency
46. so used for SSB reception in conjunction with the BFO Pressing a second time toggles FM narrow band Frequency Modulation used by most point to point communications 15 LOCKOUT Press once to lockout the currently displayed memory channel or frequency You may unlock the channel at a later time refer to the scan and search sections of the manual Up to 100 frequencies in each of the 10 search banks may be locked out a total of 1 000 frequencies 13 AR1500 Operating manual It is possible by miss operation to inadvertently lock out an entire search bank instead of a single frequency Once a complete search bank is locked out it s release requires a degree of further key pressing use sparingly There are other ways to limit the banks omitted in search and scan mode please refer to the respective sections 16 DELAY HOLD This key toggles between DELAY and HOLD while in search and scan modes When HOLD is displayed the search and scan process stops on a busy channel and remains there even when the channel becomes clear When DELAY is displayed the search and scan process stops on a busy channel and but automatically resumes approximately 2 seconds after the channel becomes clear 5 3 CHG Charger input socket left hand side This 1 3mm dual concentric is located on the left hand side of the cabinet Connect the supplied AC charger or DC lead to this socket The socket is wired centre positive and is negative ground the acce
47. the shortwave bands such as the AOR LA320 have the advantage of small size when compared to long wire aerials As the loop is within easy reach of the operator it can be rotated to provide directivity The circuitry offers a small level of gain with the advantage of selectivity similar to an ATU 8 AR1500 Operating manual Unlocking memory bank lockout The locked out memory bank may be re instated using a similar method to lockout For example to unlock memory bank 5 which has been locked out using memory bank lockout MANUAL BANK 5 0 0 LOCKOUT The lt L OUT gt and lt BANK gt indicators disappear from the LCD to confirm the process has been successful 9 Search mode There are 10 search banks available search bank 9 has a reserved function of automatic memory store 9 1 Notes on scan amp search It is important to understand the difference between scan and search modes In scan mode the contents stored in the memory channels may be reviewed very quickly for activity scanned In search mode the bottom and top frequency limits are specified along with the mode and search step When the search key is pressed the receiver starts stepping through the frequency range between the specified limits in the programmes step size looking for active frequencies During scan and search when a busy frequency is found the scan or search will stop What happens next will depend upon the setting of the DELAY H
48. tional convention CW which is used by many organisations CW is continuous wave or Morse Code dah dah di dah etc section 5 1 item 2b amp 6 3b Frequency list audible from various parts of the UK AM Airband 118 85 119 10 119 20 119 50 119 40 120 225 121 50 123 75 125 55 125 875 126 65 128 85 129 55 129 90 131 05 131 325 131 80 132 60 132 80 133 70 133 60 134 75 231 625 243 00 249 475 275 475 292 525 299 975 383 475 Broadcast 5 975 5 995 6 005 6 045 6 075 6 110 6 125 7 135 7 160 9 505 9 555 11 805 15 160 17 835 21 590 FM Marine 156 000 156 050 160 650 156 100 160 700 156 300 156 800 156 375 2m Amateur band 145 450 145 475 145 500 145 525 145 550 145 575 145 600 145 625 145 650 145 675 145 700 145 725 145 750 145 775 70cm Amateur band 433 000 433 050 433 100 433 150 433 200 433 250 433 300 433 325 433 350 433 375 433 450 433 500 433 525 16 AR1500 Operating manual WFM VHF broadcast 88 300 92 700 97 900 98 900 99 500 etc SSB Airband 4 742 5 505 5 516 5 649 8 824 8 864 10 051 11 200 Amateur band 3 600 3 800 7 050 7 100 14 150 14 325 21 250 21 450 28 450 28 550 144 300 4 432 200 432 3 Many good frequency books and guides are available from dealers Of course theoretically many services are not intended for general reception by the public Further information regard ing the legality of listening in the UK such as RA169 ISBN 1855 69 071 3 can be obtained from Licensing Section Ra
49. wish to scan banks to 5 inclusive SCAN BANK PROG 1 LIMIT 5 ENTER 23 AR1500 Operating manual The priority mode is automatically suspended during entry of frequencies from the keypad and while manually tuning with the rotary control This prevents the receiver from changing frequency while you are busy programming Let s assume you wish to assign memory bank 1 channel 56 as the priority channel don t forget to first program something into the memory channel Select MANUAL mode AUX PROG 1 5 6 ENTER The lt AUX gt indicator appears on the LCD to confirm operation To switch the priority facility Off first enter MANUAL mode press AUX the lt AUX gt indicator disappears to confirm operation Next time you wish to activate the same priority channel just press AUX to toggle the facility On Off To check which channel is assigned to the priority facility fully open the squelch and enable the priority facility Obviously when the priority channel is checked for activity in after about 2 seconds it will be found active as the squelch circuit is open You can now note the channel number assigned It is important to note that priority programming cannot be executed while the unit has stopped on the priority channel If you have previously programmed a priority channel and now wish to reassign it to another channel the sequence of key presses including AUX will activate the priority for a brief perio
50. z steps in NFM The format is SEARCH PROG START FREQUENCY LIMIT END FREQUENCY ENTER STEP ENTER MODE ENTER BANK NUMBER ENTER SEARCH Example SEARCH PROG 1 4 5 6 LIMIT 1 4 5 7 7 5 ENTER 2 5 ENTER FM ENTER 2 ENTER The previous stored frequency will be permanently over written Press SEARCH 2 to start searching the new programmed band 9 9 Storing search frequencies into memory When in search mode you may find an interesting frequency which you wish to store for later listening Let s assume that the receiver has stopped on 133 700 MHz AM during search and you wish to store the information to memory bank 6 channel 73 28 AR1500 Operating manual For example imagine you wish to store all active VHF airband channels automatically into memory First program search bank number 9 with the lower and upper frequency limits of the VHE airband 118 138 MHz the required step size 25 kHz and mode AM Press search then key number 9 the AR1500 quickly locates active channels and automatically stores them into the 100 memory channels of scan bank number 9 900 999 After a short while you need only scan the contents of scan bank number 9 knowing that all active local channels have been automatically stored there for you This makes the job of locating and storing active channels easier and the use of the receiver more pleasurable Of course you can choose to
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