AOR AR-2700 Wideband Reciever Operating Manual

AR2700 operating manual
21
Should you prefer, it is possible to switch “musical notes” to most of the
keypad keys when the keylock is On.  This may be accomplished by holding
down the [4] key while switching On the receiver by the [PWR] key.
The musical notes are arranged as follows:
[1] FA F3
[2] SO G3
[3] LA A3
[4] TI B3
[5] DO C4
[6] RE D4
[7] MI E4
[8] FA F4
[9] SO G4
[0] LA A4
[PASS] TI B4
[PRIO] DO C5
[DOWN] RE D5
[CLR] MI E5
[ENT] FA F5
While this may be fun, remember that although very hard...

AR2700 operating manual
22
[CLR] - Clear entry key
This key will cause data entry to be cancelled should a mistake be
accidentally typed and forces an escape “back to search, scan or manual
mode” whichever had been previously selected.  The [CLR] key is also used to
escape from the frequency pass menu.
There is no second function for this key.
Should you experience a programming / operational problem with the AR2700,
you may “soft” reset the microprocessor by holding the  [CLR] key while
powering up the...

AR2700 operating manual
23
When the function key
is operated, a legend
“2ndF” appears in the
upper left of the LCD.
The function key should
be 
momentarily
pressed only (so that
the legend “2ndF”
appears in the top left
corner of the LCD)
before another numeric
key is pressed... do not
hold the function key
in while pressing
other keys.
5-10  [MONI] monitor
(squelch defeat) key
This key is
used to defeat
the squelch
(open it) to
allow the monitoring of
very weak or fluttering
signals.
5-11  [K.LOCK]...

AR2700 operating manual
24
utensil such as a pin, small screwdriver, sharp pencil etc.  It does not matter
whether the receiver is switched On or Off at the time.  This has the same
effect as switching the receiver On by the [PWR] key while holding the
[CLR] key.
Your memory bank and search bank data will remain intact but any linked
bank settings, etc will be lost.  This has the same effect as the external soft
reset switch on the left hand cabinet... use only as a last resort.
Side panel - right hand...

AR2700 operating manual
25
5-14  RS232C REMOTE connector
This is a very small connector located in the
battery housing, the batteries need to be
removed to permit access.  For this reason the
use of the REMOTE CONNECTOR demands
the use of an external regulated power supply.
The connector is partially hidden from view by
the lower battery near the serial plate and by the
angle of the cabinet.  An optional adaptor
(IF-ADP) and interface (CU8232) is available for
cloning (copying) of data between two...

AR2700 operating manual
26
to external supply.  However, always switch the receiver Off when
changing batteries or connecting / disconnecting external power.  The
receiver may switch On by itself when fitting batteries, this is quite
normal.
(6)  Basic manual operation of the receiver
Operating manual conventions
Where text appears in [SQUARE BRACKETS] the keys are to be pressed
exactly as shown.
For example:  [1] [4] [5] [ENT]
Means press the 1 key followed by the 4 key followed by the 5 key followed...

AR2700 operating manual
27
It is best to press the [MANU] key at this
time to place the receiver in a known state
of operation... MANUAL MODE.
Note: If the keypad or [DIAL] is not
operated for approximately 30 seconds
while inputting data through a selection
input option, the operation will time out
and the receiver will return to its previous
task just as if the [CLR] key had been
pressed.
6-3  Entering a frequency through the keypad - VFO (MANUAL) MODE
When the [MANU] key is pressed, the receiver...

AR2700 operating manual
28
Remember, the frequency coverage is 500 kHz to 1300 MHz with frequencies
accepted by the microprocessor from 0.1 MHz (100 kHz).
Note: If the keypad or [DIAL] is not operated for approximately 30 seconds
while inputting data, the operation will time out and the receiver will return to
its previous task just as if the [CLR] key had been pressed.
Frequencies may also be entered as kHz which is convenient when inputting
data from a short wave frequency listing.
Example of frequency...

AR2700 operating manual
29
6-5  Changing frequency using the [UP] [DOWN] keys and [DIAL]
The UP / DOWN keys provide a convenient method of frequency change,
alternatively the [DIAL] may be rotated.
The speed at which the receiver steps up or down depends upon the STEP
SIZE which is default to PROG (automatically set from the lookup table).  It is
possible to override the PROGRAM default using the [STEP] key.  Available
step sizes are:
NFM & AM: 5kHz, 6.25kHz, 9kHz, 10kHz, 12.5kHz, 20kHz, 25kHz,
30kHz,...

AR2700 operating manual
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bandplan conventions.  The AR2700 has been pre-programmed at the factory
with all the bandplan data (specific to each market area) so that the AR2700
will automatically select the appropriate step size and mode for the frequency
chosen.  This greatly simplifies operation of the receiver while you are
familiarising yourself with all the facilities.
The pre-programming of step size may be manually overridden so you may
choose alternative settings at will or when bandplans are...