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Tel: +44 (0) 1629 581222 Fax: +44 (0) 1629 580070
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AOR (UK) Ltd | |||
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| Unit 9, Dimple Road Business Centre, Matlock, Derbyshire DE4 3JX, England Tel: +44 (0) 1629 581222 Fax: +44 (0) 1629 580070 |
| AR7030-19 Due to commercial interest, five 19 inch rack panels were manufactured some time ago and built one into a complete radio. However, commercial customers still took the standard AR7030 in its original case so the 19 inch version never really rolled out. One unit has been built for display purposes at exhibitions etc and is based on the AR7030 PLUS radio with keypad, speaker with mute switch both mounted on the front panel. price is GBP 1272.00 + VAT. The receiver is not cased as rack-mounting is anticipated... a desk-top case costs around GBP 200.00 + VAT extra. The UPNB7030 would add an additional GBP 138.00 + VAT. Various filters are available such as Collins 300Hz, 500Hz, Murata 1kHz etc, they are listed at: http://www.aoruk.com/rrp.htm#455khz_filters Prices typically range from GBP 34.00 + VAT to GBP 62.00 + VAT. A maximum of SIX filters can be
fitted, four are already in place. |
The AR7030 was first released in the spring of 1996 and quickly gained many awards and accolades including the industry standards World Radio & TV Handbook table-top receiver of the year and Passport to World Band Radio five star award for Editor's choice. Responding to commercial requests for an "off the shelf" solution to cost effective high performance monitoring applications, the AR7030 is now available in a 19inch U3 rack mount in addition to the standard table-top formats of AR7030 and AR7030 ’PLUS’. The AR7030 is now a mature product enjoying a good reputation in the hobbyist and semi-commercial market places, building on this success, the AR7030/19 is set to prove equally popular as a cost effective alternative to established high end and custom units.
At the core of the AR7030 is exceptional strong signal performance coupled with up-to-the-minute enhanced microprocessor features and facilities. 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 and crystal), all of which are ‘self aligned’ by the receiver for optimum performance and passband symmetry; this in addition to the standard fitted TCXO makes the AR7030 ideal for ECSS applications and long term monitoring of data modes. For broadcast monitoring, the self tuning variable bandwidth synchronous detector is a pleasure to use and ‘hangs on’ to the weakest of signals, audio quality is superb, two adjustable line outputs are provided.
Where good strong signal handling is of great importance, the AR7030 must be the most cost effective solution offering an IP3 greater than +30dBm (typical up to +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. Simply compare this specification to others then compare the price!
The AR7030 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. In particular, the AR7030/19 has been based on the AR7030 ‘PLUS’ enhanced receiver, this ensures the very highest levels of performance and capability with all aspects of performance carefully considered, a front panel keypad (in addition to the hand-held infrared control) and front facing speaker are also incorporated:
Increased balance of the mixer for greatest IP2 & IP3
High tolerance 0.1% components in DDS ladder for low noise
Enhanced RF attenuator operation for minimal intermod
Higher spec wire aerial input transformer for minimal mixing products
Four filters fitted as standard (typical bandwidths: 2.2, 4.0, 5.5, 9.5kHz)
Bourns optical encoder for the smoothest DX tuning
Features CPU fitted, 400 memories, multi timers & alpha tag
Enhanced features include pass band tuning ±4.2kHz, variable audio pitch tune on CW & data modes and a new "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 four level attenuator provides levels of sensitivity from +10dB to -20dB. The AR7030/19 may also be controlled by direct connection to RS232.
Options: many additional filter bandwidths (up to a total of six may be fitted at any time), multi-option switchable noise blanker and audio filter, internal rechargeable battery for areas where power drop out is common, service kit, Windows PC software, desk-top cabinet. The standard AR7030/19 offers a bolt-in U3 19 inch rack using a custom CNC machined solid brushed & anodised aluminium front panel with the receiver section housed in a metal top, bottom & rear panel.
AR7030/19 specification
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