AOR AR-ONE Specifications Page 7

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7 / 86 28.8.2007 13:16
user-defined frequencies. The large front panel is very comfortable to use. Other features include: two antenna
inputs (N and SO-239), antenna attenuator, keypad entry, computer control, audio filter, dial torque adjustment,
mute, AGC, lock, RS232 port, squelch, analog S-meter, preamp, removable feet raisers, scanning (25/50
channels/second) and sweep. In FM mode the AGC may be set to Off or On. In other modes the AGC may be
set to Off, Fast, Middle or Slow. This radio may be run from 12 VDC at 1 Amp (with optional DC3000 power
cord) or via supplied 110 VAC adapter. There is a programmable 10.7 MHz IF output on the back to drive the
optional SDU5600. There is also a programmable 10 MHz External Frequency Standard input jack [BNC] for
laboratory applications. Click here to view Quick Ref Card in PDF format. Installation of one or more filters is
$25.00 per filter at time of receiver purchase.
The "+3" version offers even more with synchronous AM, AFC and Noise Blanker. Popular with government
agencies throughout the world. The AR5000+3 is a 'feature loaded' version of the AR5000 receiver with three
enhanced options fitted, these options can only be fitted in the factory during manufacture or AOR workshop:
Synchronous AM
Automatic Frequency Control
Noise blanker
1. Synchronous AM:
Synchronous AM is a useful tool to help reduce distortion due to selective fading, in particular on the short wave
bands (long & medium wave bands too). In synchronous AM, the original carrier is phase locked to a stable
internally generated synthetic reference which is used to replace the (variable) original carrier resulting in more
stable reception with greater recovered audio, especially during deep fades. A wide lock rage is provided by this
detector to enable simple, quick & efficient operation (unlike some other synchronous units on the market which
require extremely accurate tuning).
SAM Synchronous AM double side band
SAL Synchronous AM lower side band
SAH Synchronous AM upper (higher) side band
AM transmissions are constructed of a carrier and both upper & lower sidebands. Usually both side bands carry
the same information so both or either may be selected with the same recovered resulting audio, however when
adjacent interference is present, selecting synchronous single side band (SAL or SAH) can provide improved
results.
2. Automatic Frequency Control (A.F.C.): Automatic frequency control is a 'global' facility, either OFF or ON
(default is off). When A.F.C. is used in AM, FM and synchronous AM modes, the receiver is automatically
tuned on to the centre frequency to provide the best signal strength and recovered audio. When used in
synchronous AM modes, A.F.C. ensures that the signal is pulled within lock range for no-fuss operation. A.F.C.
is particularly useful on the VHF-UHF bands to ensure that the AR5000 is receiving spot on frequency,
especially when searching through unusual band plans or when the exact band plan is not known.
3. Noise blanker: The noise blanker is another a 'global' facility, either OFF or ON (default is off). This facility is
particularly useful to help reduce impulse noise and interference from vehicles ignition systems, whether from
passing traffic or while the AR5000 is fitted into a mobile installation.
Options
AS5000 4 way external aerial switch1.
CT5000 Internal CTCSS unit2.
DS8000 Voice inverter unit (analogue)3.
CR5000 Tape recording lead for AR5000A4.
DC3000 12V DC lead for the AR5000A etc. Can be fitted with cigar plug5.
8MINI 8 pin ACC1 mini-DIN plug for AR5000A6.
8LMINI 8 pin ACC1 mini-DIN plug with free end lead for * AR5000A7.
5000PC RS232 lead to 9-way PC serial plug (other connections made to order) for AR5000A8.
MF500 Collins 500 Hz mechanical CW filter9.
MF2.5 Collins 2.5 kHz mechanical SSB filter10.
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