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AR7030

high dynamic range, low noise short wave receiver

The standard AR7030 receiver has been awarded a five star rating by Radio Netherlands and Table-top Receiver of the Year award 1996/97

by the World Radio TV Handbook, it has also been awarded five stars by Passport to World Band Radio... truly a remarkable receiver.

The AR7030 stunned the world when first released due to exceptionally high performance, indeed the AR7030 still wins the

analogue / DSP battle in respect of high dynamic range and low noise, a testimony to the successful project between

internationally acclaimed UK designer John Thorpe and AOR.

Table-top receiver of the year - WRTH 1996/97

★★★★★★★★★★

★★★★★

AR7030 & AR7030

PLUS

, awarded five stars by both the authoritative Passport To World Band Radio and World Radio & TV Handbook

High performance coupled to enhanced microprocessor features

and facilities forms the cornerstone of its success. Frequency

coverage is from 0 - 32 MHz all mode: AM, Synchronous AM, USB,

LSB, CW, DATA & NFM. Four 455 kHz IF filters are provided as

standard with provision for a further two (including Collins mechanical

filters), all of which are ‘self aligned’ by the receiver for optimum

performance and passband symmetry; this plus the standard fitted

TCXO makes the AR7030 ideal for ECSS applications.

The self tuning variable bandwidth synchronous detector is a

pleasure to use and ‘hangs on’ to the weakest of signals, audio

quality is superb.

Where good strong signal handling, high performance and

transportability are of great importance, the AR7030 is the solution

offering an IP3 greater than +30dBm (typical +35dBm reduced by

10dB with the preamp on). Intermodulation free dynamic range with

the 2.2kHz filter is typically 105dB @ 100/200kHz spacing, 104dB

@ 20/40kHz and still better than 90dB @ 5kHz. This fantastic strong

signal handling is aided by the innovative configuration of a lateral

DMOS FET QUAD first mixer running at 15V, relay switching in the

front end (not diodes) and the use of shielded inductors throughout

the signal path. All this and GREAT SENSITIVITY better than 0.5uV

for 10dB S/N in AM mode and better than 0.3uV for 10dB S/N in

SSB.

Selectivity too is razor sharp typically offering greater than

90dB @ 5kHz SSB, almost 100dB @ 10kHz and greater than

100dB @ 20kHz, these excellent figures are achieved by the

implementation of a remarkably low phase noise local oscillator

<-158dBc/Hz @ 100kHz.

The receiver is built around a TCXO frequency standard which

provides the reference for all circuitry ensuring the ultimate in stability

and optimum alignment. Single loop DDS provides the clean local

oscillator reference essential for low reciprocal mixing levels and

seamless tuning in 2.655Hz steps (10.62Hz in AM & NFM modes)

with no tuning “plops” at regular intervals. The receiver is a double

conversion superheterodyne with intermediate frequencies of 45MHz

and 455kHz.

Enhanced features include pass band tuning ±4.2kHz, variable

audio pitch tune on CW & data modes and a “variable bandwidth

synchronous detector” for AM listening to eliminate the effects of

transmitter / receiver drift as well as reducing distortion from selective

fading. The pass band tuning may be used in synchronous AM

mode to select synchronous USB, LSB, DSB or anything in between.

A specially developed AGC release characteristic has been

developed to provide very smooth SSB. Noise spike compression

has also been included to reduce the effects of noise pulses.

A built-in six level attenuator provides levels of sensitivity from +10dB

to -40dB.

Assignable controls enable you to place the functions YOU want

at your fingertips. It is also possible to save a few of your ‘favourite’

receiver setups for later retrieval. Twin VFOs are provided in addition

to the 100 memory channels (400 with the 'features CPU' fitted)

with versatile scanning facilities including independent squelch

settings for each memory and VFO. Virtually every aspect of the

AR7030 is controllable via the standard REMOTE port for straight

forward computer connection, optional PC Windows based

software is available.

Despite the deceivingly simple front panel layout, the AR7030 really packs a punch with enhanced facilities including an

extensive computer command set ideally placing the receiver for semi-commercial applications...

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®AR7030 high dynamic range, low noise short wave receiverThe standard AR7030 receiver has been awarded a five star rating by Radio Netherlands and Ta

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The tape recorder configurable outputs and slave relay may beprogrammed to operate from the built-in clock timer or from thesquelch control. Mute in

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