aor_ar1500_manual.pdf

AR1500 Operating manual

Power requirement...

6V DC from built-in NiCad battery pack or 11 - 18V DC

from CHG jack or 4 x AAA dry cells (dry case provided)

(1) Introduction & accessories

Power consumption...

100mA approx

Size...

55mm (W) x 152mm (H) x 40mm (D) approx excluding

projections

Thank you for purchasing the AOR AR1500 compact all mode hand portable receiver. The

AR1500 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.

Weight...

360g approx including NiCad pack

Display...

Liquid Crystal (LCD) with switchable light for areas of

low level lighting

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.

** Specifications subject to change without notice due to continuous

development of the receiver. E&OE.

(14) Index

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.

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

corruption 30

cross-modulation 8

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.

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

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.

EAR 10

Earphone 10

EARTH 6

EEPROM 19

ENTER 12

Entering 15

1-1 Accessories supplied

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

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

FM 15, 16

Fr.Err 15

Frequency list 16

Front panel 12

fuse 6

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

cables 6

Charger 14

charger 6, 7

CHG 14

clean 6

CLEAR 12, 21

Clearing 15

Clearing memories 21

Controls 9

Conventions 14

ground 6

HOLD 14, 20, 21, 25

This manual covers the AR1500, AR1500E

and AR1500EX models.

internal NiCad pack 7

jack socket 6

AR1500 Operating manual

(2) Table of Contents

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.

( 1) Introduction & accessories ....................................................................................

1-1 Accessories supplied................................................................................................

(2) Table of contents (this page)...................................................................................

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

<Fr.Err> message, you have probably made a mistake - try again.

(3) Major features ........................................................................................................

(4) Precautions .............................................................................................................

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.

4-1 Location...................................................................................................................

4-2 Look after your receiver...........................................................................................

4-3 Power requirements..................................................................................................

4-4 Aerial connection.....................................................................................................

(5) Controls and functions ...........................................................................................

(12) Optional accessories

5-1 Top panel.................................................................................................................

DA3000

Wide band discone aerial 25 MHz - 2,000 MHz *

Close-up views of the AR1500 ..................................................................................

WA7000

Active wide band compact aerial 30 kHz - 2,000 MHz *

5-2 Front panel ...............................................................................................................

LA320

Longwave - shortwave active desktop loop aerial *

5-3 CHG - Charger input socket......................................................................................

NiCad pack

Additional internal NiCad pack (State if EX 3-Pin)

ABF125

VHF Airband filter *

( 6) Basic operation ........................................................................................................

Service information

6-1 Background..............................................................................................................

6-2 Conventions..............................................................................................................

* See the notes regarding aerials in section 4-4

6-3 Basic manual operation............................................................................................

Entering a frequency through the keypad.........................................................

Clearing incorrect frequency input...................................................................

3a. Changing mode................................................................................................

(13) Specification **

3b. Frequency list audible from various parts of the UK: .......................................

Model...

AR1500

Tuning the receiver...........................................................................................

Receiver coverage...

500 kHz - 1300 MHz

Receiving modes...

AM, FM(Narrow), FM(Wide) and SSB with the BFO

switched On (USB, LSB & CW)

(7) Single Side Band Operation ...................................................................................

Number of memory channels...

900 plus 100 reserved for ‘auto-memory’ in bank 9.

1000 total (10 x 100)

(8) Scan mode - memories ...........................................................................................

Scan rate...

20 channels per second (approx)

8-1 Storing frequencies to memory.................................................................................

Number of scan banks...

10 total. Bank 9 reserved for ‘auto-memory’

8-2 Recalling previously stored memory channels...........................................................

Scan delay time...

2 seconds (approx)

8-3 Clearing memory contents.........................................................................................

Search banks...

9 standard search banks plus one search bank for the

automatic search pair of bank 9

8-4 Priority (AUX) channel.............................................................................................

8-5 Scanning memory channels and banks.......................................................................

Search rate...

20 steps per second (approx)

Search step size...

Programmable in 5 & 12.5 kHz steps to a maximum of

995 kHz (i.e. 5, 10, 12.5, 15, 20, 25, 50 etc.)

8-6 Problems with scanning.............................................................................................

8-7 Program bank scan.....................................................................................................

Priority channel (AUX)...

Any one of the 1000 memories may be used as priority.

Sampling is every 2 seconds (approx)

8-8 Memory lockout.........................................................................................................

8-9 Memory bank lockout................................................................................................

Receiver sensitivity...

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

BFO range...

Continuous -4 ~ +6 kHz (approx)

Aerial connection...

One 50 OHM BNC socket on top case

Audio output...

>100mW @ 10% distortion

AR1500 Operating manual

(11) Microprocessor reset

(9) Search mode ........................................................................................................... 25

9-1 Notes on scan & search ............................................................................................. 25

9-2 Pre-programmed search banks..................................................................................

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 battery backup is required.

9-3 Searching all banks...................................................................................................

9-4 Problems with searching..........................................................................................

9-5 Program search bank................................................................................................

In the extremely unlikely event you should encounter problems with memory loss or corruption

it may be possible for you to RESET the microprocessor. This scenario may occur due to static

discharge from mobile operation, connection to an external aerial, shipping in plastic &

polystyrene materials or from noise on the power feed to the receiver.

9-6 Search bank lockout.................................................................................................

9-7 Releasing Search bank lockout (or individually locked out frequencies)..................

9-8 Re-programming search bank limits.........................................................................

9-9 Storing search frequencies into memory...................................................................

A small RESET slide switch is located in the battery compartment of most (BUT NOT ALL)

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’

please contact your dealer.

(10) Automatic memory input .......................................................................................

(11) Microprocessor reset ...............................................................................................

(12) Optional accessories ................................................................................................

Switch the AR1500 Off and remove the battery cover and NiCad pack.

Remove the protective tape from the slide switch.

(13) Specification ............................................................................................................

The switch has two positions, carefully slide the switch from the first to the second

position.

(14) Index .........................................................................................................................

Insert the NiCad pack and switch on the receiver.

The display should be blank at this time.

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.

Execute exactly as shown! (ignore the " - " separator):

AR1500 & 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 - SEARCH - 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

AR1500EX (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

Switch Off the receiver and remove the NiCad pack.

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.

AR1500 Operating manual

(3) Major features

Press [ENTER] the bank indicator will flash

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.

[6] the channel indicator will start flashing

[73] you don’t press enter - that’s it.

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.

It is sometimes worth pressing the [DELAY/HOLD] key so that <HOLD> 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.

All popular modes are provided NFM, WFM, AM and SSB (USB, LSB & CW) with the BFO

switched on. A rotary tuning control is fitted to the top panel to further increase operating

pleasure, convenience and versatility.

(10) Automatic memory input

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.

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.

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.

Carefully set the squelch threshold to allow the receiver 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.

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.

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.

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.

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.

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).

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.

Memories, Scan 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.

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 NFM (not WFM).

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).

AR1500 Operating manual

9-7 Releasing Search bank lockout (or individually locked out frequencies)

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

VHF 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).

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:

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.

[SEARCH] [BANK] [PROG] [LOCKOUT]

Of course you can choose to 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.

The first of the locked out frequencies will appear on the display. The <L.OUT> 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] .

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.

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.

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.

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 kHz steps in NFM

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 within a few moments adding to the operational time when away from the home or

vehicle.

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]

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.

The previous stored frequency will be permanently over-written. Press [SEARCH] [2] to start

searching the new programmed band.

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.

9-9 Storing search frequencies into memory

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.

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:

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