AOR AR5000 Manuale Utente Scaricare il pdf (Pagina 8)

AR7030 -

The European Breeze

high dynamic range, low noise short wave receiver

Specification

- based on a typical production unit

Frequency input range 0 - 32 MHz

Modes AM, Synchronous AM, USB,

LSB, CW, DATA & NFM

Intercept point (IP

) >+30dBm (+35dBm typical)

Dynamic range typical 104dB 20/40 kHz spacing

with 2.2kHz SSB filter

Sensitivity

(150kHz - 32 MHz) <0.3uV for 10dB S/N in SSB

<0.5uV for 10dB S/N in AM

Selectivity >90dB @ 5kHz SSB with

2.2kHz filter

>100dB @ 20kHz SSB

Standard fitted filters 2.2kHz, 5.5kHz, 7.0kHz & 10kHz

Tuning 2.655Hz in SSB modes

10.62Hz in AM & NFM modes

Fully continuous tuning multi-rate

speed up. Keypad frequency

entry from infrared hand control

Audio output 2 WATTS into 8 ohms using

standard provided power supply

Harmonic distortion SSB modes, input signal at S9,

THD <0.2%

AM modes, input signal at S9,

THD < 1.3%

Frequency stability TCXO specification ±2.5ppm

from -30° to +70°C and will

typically give a receiver stability

better than ±1ppm from 10°C to

+40°C

Aerial connection 50 ohm unbalanced SO239

600 ohm unbalanced via

wire grip

Hi-Z whip input (on SO239) with

reduced RF performance

Power requirements 15V d.c. from external a.c. mains

adapter. Current typical 300 to

500mA, 1A max. 30mA on

standby but can be operated on

12 to 15V d.c. with degraded

performance

Dimensions

Case: 238 x 77 x 191mm (W.H.D.)

Overall: 238 x 93 x 227mm (W.H.D.)

Weight: 2.2kg

Designed & built in the UK for AOR Ltd Japan

by AOR Manufacturing Ltd

Options

MF300 Collins 300 Hz mechanical CW filter

MF500 Collins 500 Hz mechanical CW filter

CFJ455K8 Murata 1.0 kHz data filter

XTAL2.4 Quality 2.4 kHz crystal filter

(FL124 daughter board required)

MF2.5 Collins 2.5 kHz mechanical SSB filter

CFK455J Murata 3.0 kHz metal cased filter

as fitted in the AR7030

PLUS

CFK455I Murata 4.0 kHz metal cased filter

MF4 Collins 4.0 kHz AM mechanical filter

MF6 Collins 6.0 kHz AM mechanical filter

FL124 Daughter board for crystal filters

BP123 Internal rechargeable battery and

charge circuit for the AR7030

NB7030 Enhanced multi-option - audio notch filter,

noise blanker and features CPU for

alpha-tag memories, additional memories,

enhanced timer

UPNB7030

Enhanced upgrade NB7030 for

those who already have the features CPU

fitted such as

AR7030 PLUS

FPU7030 "Features CPU" for the AR7030 as supplied

with the NB7030 option

SM7030 Service information comprising circuits,

layout, block diagram, service alignment

disk & lead

Data-Master PC Windows control software

AR7030

PLUS:

For those who want the ‘edge’ then this model has

been designed for you. All aspects of performance have been carefully

studied and specific performance enhancements have been applied

making

excellent

into the

ultimate

ü Increased balance of the mixer for greatest IP2 & IP3

ü High tolerance 0.1% components in DDS ladder for low noise

ü Enhanced RF attenuator operation for minimal intermod

ü Higher spec wire aerial input transformer for minimal mixing products

ü Ceramic metal cased 4 kHz (displayed) AM filter fitted as standard (typical bandwidths:

2.2kHz, 4.0 kHz, 5.3kHz 9.5kHz)

ü Bourns optical encoder for the smoothest DX tuning

ü Features CPU fitted, 400 memories, multi timers & alpha tag

The

NB7030

multi-option is

not fitted as standard

to the

AR7030 PLUS

, just the ‘features’ CPU is

fitted. Should you wish to add the hardware noise blanker and audio notch filter,

order the UPNB7030

The

AR7030 ‘PLUS’

is the best of the best!

The 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. 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.

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

★★★★★★★★★★

★★★★★

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

page 7

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