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| AR5000A / AR5000A+3 |
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 The Ultimate Receiver High performance wide band all mode receiver with "Cyber Scan" 10kHz - 3000MHz |
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| AR5000A / AR5000A+3 |
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The Ultimate Receiver High performance wide band all mode receiver with "Cyber Scan" 10kHz - 3000MHz |
| The AR5000A provides amazing sensitivity and strong signal handing across an unprecedented
wide frequency coverage with all mode receive tunable down to 1Hz steps...
all this in a compact cabinet weighing just 3.5kg. No wonder this receiver
has been adopted as the definitive receiver for professional operators,
top-end hobbyists, government departments and armed forces throughout the
world. The short wave performance is so good that separate receivers need
not be considered. Whether sitting on the desktop monitoring short wave transmissions or connected to aerial farms for wide band VHF-UHF monitoring (via the optional AS5000 4-way aerial switch with automatic bandplan switching), operators have been astonished how the seemingly impossible has been achieved... unparalleled high performance, an amazingly flexible operating system, high build quality featuring a metal cabinet - yet still remaining very compact. Multiple units have been interconnected at airports for communication monitoring, others have been ported via RS232 intodial-up or LAN monitoring applications. The receiver has even been combined with the optional spectrum display unit and located in distant concrete bunkers controlled via a laptop computer and dial-up connection. There is little competition for comparison, 'the rest of the pack' are significantly larger, heavier or many times more expensive! |
AR5QRG.PDF (14kB)| Specifications |
| Frequency coverage | 10kHz - 3000MHz |
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| Receive mode | AM, FM, USB, LSB & CW |
| Nominal filter bandwidths | 3kHz, 6kHz, 15kHz, 30kHz, 110kHz & 220kHz |
| Memory channels | 1000 (100 ch X 10 banks x2 ) |
| Search banks | 20 banks x 2 |
| Scan rate | 45 channels / second(MAX) |
| Search rate | 45 increments / second |
| Antenna connectors | 50 OHM unbalanced. N-type & SO239 |
| Power requirements | 12 V DC, approx. 1A |
| Dimensions | 217mm(W) X 100mm(H) X 260mm(L) excluding projections |
| Weight | 3.5 kg |
| OPTIONAL ACCESSORIES for AR5000A |
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| True base receivers are few and far between, some have simply evolved
from the hand held equivalents with little tangible improvement in performance
or facilities over their smaller counterparts (or use switched wide band
converters) - the AR5000A is not like this! AOR have been synonymous with
pioneering receiver design from many years and this tradition continues
with the AR5000A. A great advancement in wide band front end design has
been made, partly due to the introduction of automatic electronic preselection between 500kHz - 999.999999MHz with low pass, band pass and high pass filters for other bands. The preselection may be gmanually trackedh when monitoring spot frequencies to help reduce any potential effects of interference caused by nearby monster transmitters, this results in excellent strong signal handling yet maintains high sensitivity. A TCXO forms the building block which is fitted as standard to ensure a very high degree of stability, provision is made to feed the AR5000A from an external 10 MHz reference signal should one be available (commercial organisations etc). A Numeric Controlled Oscillator (NCO) provides smooth tuning with steps right down to 1Hz. The receive circuitry is a triple conversion superheterodyne with I.F.sf of 622.4MHz, 10.7MHz & 455kHz. Multiple switchable I.F. bandwidths are available in both the 10.7MHz and 455kHz I.F. stages: 3kHz, 6kHz, 15kHz, 30kHz, 110kHz & 220kHz with provision for an optional 500Hz Collins mechanical filter, also a substitute 2.5kHz Collins mechanical SSB filter and Collins mechanical 5.5kHz narrow AM filter option is available. |
The AR5000A is housed in a stylish custom solid metal cabinet and is powered
from the supplied external 12V d.c. power unit but may be operated from
any regulated supply or battery capable of providing 12-16V @ 1.0 Amps
approx. Aerial input is via a high quality N-TYPE connector with a second
SO239 connector which is switchable manually or automatically from the
front panel. A switchable preamplifier is employed (below 230 MHz) plus
a switchable 10dB attenuator, this may be configured as "auto"
so that the receiver selects the optimum setting automatically. Not only is the RF performance outstanding, the microprocessor facilities also point to the forward and innovative thinking which forms the core of the success. There are 1,000 memory channels, 10 scan banks, 20 search banks with auto-memory store and a total of 2100 PASS frequencies, 5 independent VFOs, alpha-tag memory & search banks... TWICE, frequency offset, step adjust and auto-mode tuning and much more. The 1,000 memory channels (10 banks x 100 channels), 20 search banks (TWICE) are stored by EEPROM so that no external supply, battery or capacitor is required for data retention. |
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Feature enhanced wide band receiver
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, 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 range 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 |
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| SAL | Synchronous AM lower side band |
| SAH | Synchronous AM upper (higher) lower side band |
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 center frequency to provide the best signal strength and recovered audio. When used in synchronous AM modes, AFC ensures that the signal is pulled within lock range for no-fuss operations. AFC is particularly useful on the VHF-UHF bands to ensure that the AR5000 is receiving spot on frequency, especially when searching through unusual bband plans or when the exact band plan is not known.
3. Noise Blanker
The Noise blanker is another "global" facility, either OFF or ON (default 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.
