High
performance wide band all mode receiver with "Cyber Scan"
10kHz
- 2600MHz
AM,
FM, USB, LSB & CW
1000
channels (100 X 10 banks)
The
AR5000 advances the frontiers of performance providing excellent strong
signal handling, high sensitivity and wide frequency coverage with microprocessor
facilities to match including 5 independent VFOs, 1000 memory channels,
20 search banks, "Cyber Scan" fast scan & search rates, alpha-tag memory
& search banks, frequency offset, step adjust and auto-mode tuning
to name just a few. AOR have seen synonymous with pioneering receiver design
for many years and this tradition continues with the all new AR5000. 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 passs and high pass filters for other
bands. The preselection may be "manually tracked" when monitoring spot
frequencies to help reduce any potential effects of interference caused
by nearby monster transmitters.
For
Reference...... AR5QRG.PDF (14kB)
Specifications
Frequency
coverage 10kHz - 2600MHz
Receive
mode AM, FM, USB, LSB & CW
Nominal
filter bandwidths 3kHz, 6kHz, 15kHz, 30kHz, 110kHz & 220kHz
Memory
channels 1000 (100 ch X 10 banks)
Search
banks 20 banks
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 AR5000
AS5000
External Antenna Selection Unit
CT5000
CTCSS Decoder Unit
DS8000
Voice Inversion Decoder Unit
MF500
500Hz Collins mechanical filter
MF2.5
Substitute 2.5kHz mechanical filter
MF6.0
Substitute 5.5kHz mechanical filter
CR5000
Recording Cable
AR5000...
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 AR5000 from an
external 10MHz reference signal should one be available (commercial organizations
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.s* of 622MHz, 10.7MHz & 455kHz. Multiple switchable I.F. bandwidth
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.
The AR5000 is housed in a newly designed solid metal cabinet and is powered from supplied external 12V DC power unit but may be operated from any regulated supply or battery capable if providing 12-16V@ 1A. Antenna input is via high quality N-TYPE connector with a second SO239 connector which is switchable manually or automatically from the front panel. A switchable preamplifire is employed plus a switchable 10dB attenuator, this may be configured as "auto" so that the receiver selects the optimum setting automatically.
The 1000 memory channels (10banks x 100 channels), 20 search banks with auto-memory store and total of 2100 PASS frequencies are provided with data stored by EEROM so that no external supply, battery or capacitor is required for data retention. Scanning and search speed is a very respectable maximum of 45 channels or increments per second in "Cyber Scan".
A meaningful & detailed auto-mode bandplan has been preprogrammed (specific to each market area) so that operation is straight forward and quick. Should you wish, auto-mode may be easily canceled by selecting a different step size or mode. A special Frequency Offset facility plus step adjust has been provided to simply DUPLEX frequency monitoring and for tracking unusual and plans. A wide variety of search and scan types are available including memory scan, select scan (your temporary favorite frequency notepad!), mode scan, bank scan, pause scan, search link etc. The squelch to may be configured for noise, signal level, audio level etc.
Audio low pass and high pass filters may be configured and are switchable around the following frequencies; LPF 3kHz, 4kHz, 6kHz,& 12kHz, HPF 0.05kHz, 0.2kHz, 0.3kHz & 0.4kHz. De-emphasis is also selectable: THRU, 25uS, 50uS, 75uS & 750uS. A DTMF decoder is provided to display DTMF characters in use with optional CTCSS board to display the CTCSS frequency. A front panel accessory socket provides audio break-out / return for use with external signal processing units, detector output with switching control for tape recorders.
A large rear illuminated segmented Liquid Crystal Display provides a wealth of operating detail including frequency, mode, AGC, etc. but also displays up to 7 alpha-numeric text characters so that comments may be entered to accompany memory channels & search banks to aid easy identification and retrieval of data. Two tuning controls are provided: the main knob provides tuning steps from 1Hz to 999.999kHz and has mechanical variable torque adjustment ideal for fine tuning such as SSB applications, second is click-indented ideal for channel tuning and provides switchable step sizes of 100Hz, 1kHz, 10kHz, 100kHz, 1MHz, and x10 for rapid tuning. An analogue S-meter provides easy to see relative signal strength. Other useful facilities include a built-in dual time clock 12hr/24hr with On/Off timer, sleep and alarm, variable beep tone... plus much, much more!
Extensive facilities are available via RS-232C port which is standard on the AR5000. Output terminals are provided for an external speaker, headphones & transmit mute. Provision has been included for an optional built-in signaling unit, external antenna switching unit plus CTCSS and plus other decoder options.
The
AR5000 is ready to plug straight into the optional SDU5000 spectrum display
unit for "real time" band occupancy evaluation and measurements in both
frequency and dBm signal level. The 10.7MHz I.F. output of the AR5000 has
a suitable 10MHz bandwidth ideally matched to the SDU5000.
(note:
a microprocessor upgrade may be necessary to the SDU5000)
AR5000+3
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
SAL
Synchronous AM lower side band
SAH
Synchronous AM upper (higher) lower 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 (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 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.
SWITCHED EPROM BANKS - 2000 memories
The facility of switching EPROM banks is now supported, this virtually means that the AR5000 now has 2000 memory channels, 40 search banks, 10 VFOs etc. ... two sets in one!!