AOR AR-ALPHA Manual do Utilizador descarregar pdf (Página 2)

In recent years, frequency bands above 3 GHz are populated with

new signal standards such as MLS, STL and FPU. These new

signals in the so-called C-band and S-band offer services such as

ISM, WiMAX, etc..., which cannot be received with conventional

wideband receivers. Not only the frequency coverage, but also high

sensitivity and high reception accuracy are required for optimum

performance. All over the world, frequency bands over 2.5 GHz are

used for new digital cellular services such as LTE-Advanced,

TD-SCDMA, and WCDMA/HSPA.

This is where AOR’s new AR6000 receiver replies to such new

needs by offering world’s first wide-band communication receiver

with frequency coverage up to 6000MHz, based on revolutionary

broadband reception and digital signal processing technology

introduced with the AR-ALPHA, AR2300 and AR5001D receivers.

On all frequencies, AR6000 provides excellent reception

characteristics and can be used for signal analysis and signal

strength measurement. Typical commercial applications are

wide-area radio monitoring, interference detection and investigation,

field-strength measurements, frequency analysis, radio propagation

research, close range detection of illegal eavesdropping devices

such as wiretap bugs and hidden wireless cameras.

■

Main features

Super wide-band: AOR is the world’s first commercial receiver

manufacturer to introduce a receiver with continuous coverage from

9kHz to 6GHz, in 1Hz step increments (2Hz over 3.15GHz). Unlike

spectrum analyzers, it offers outstanding sensitivity, selectivity and

reception stability. Thanks to its small size (30 x 22 x 10 cm), light

weight (5 kg) and 13.5V power requirements, it can be easily carried

around and used outdoors. AR6000 represents a ground breaking

new concept to your signal measuring needs.

Ultra low noise down converter: The 3.15 GHz to 6 GHz portion is

realized by cleverly designed, internal down conversion circuitry,

offering ultra-low noise figures comparable to high-end

microwave-only receivers.

Distributed constant circuit: To ensure low noise performance

and minimal performance deterioration over time and environmental

variations, AR6000 is based on distributed constant circuitry,

carefully designed by CAD/CAM and is therefore much superior to

conventional lumped element circuit based receivers.

SDR architecture: Signals are processed digitally from the 3

stage for better performance compared to typical analog receivers

which require a detection circuit with a separate filter. The firmware

of the high speed DSP is upgradable with great possibilities of

customization to meet future diverse needs.

Direct conversion: For LF, MF and HF (9kHz〜25MHz), signals

from the antenna are converted directly to digital baseband format

through a single frequency conversion. This method based on LSI

circuitry provides high selectivity and greatly reduces image effects.

Zero IF system: While AR6000 applies direct conversion for

frequencies below 25MHz, for higher frequencies the Zero IF

system is used. Incoming radio signals are processed using

synchronous detection driven by a local oscillator whose frequency

is identical to, or very close to the carrier frequency of the intended

signals. This method reduces image effects and allows output of a

clean digital I/Q signal.

Digital I/Q output: After the A/D conversion, the analog IF signal

becomes a quadrature demodulation zero-IF signal. This signal has

two components known as I (In-phase) and Q (Quadrature). I/Q

signals are expressed on a complex plane, even at the same angular

frequency; the digital signal can be processes clockwise and

counterclockwise. With the option board IQ5001, digital I/Q can be

output through USB 2.0 for demodulation by PC.

Highly accuracy reference frequency: When connected to the

AR6000 communications receiver, the GP5001 GPS receiver

improves the frequency stability from +/- 0.1ppm to +/- 0.01 ppm; by

using the GPS pulse signal (one pulse per second) for an accurate

time base of the local oscillator circuit. +/- 0.01ppm frequency

stability of the 10MHz internal master oscillator is achieved when

synchronized to a GPS signal.

Outstanding signal level correlation: The signal input level from

the antenna is tightly correlated to the analog 15MHz wide,

45.05MHz IF output and readings of the signal meter. Variations less

than +/-1.5dB throughout all bands! Ideal for signal spectrum

analysis, precise signal level measuring and demodulation, system

calibration etc...

Up to 240 hours of audio recording: Demodulated audio can be

easily recorded as a PC compatible wav file with the built-in SD

media recorder. Approximately 8 hours of recording per 1 GB. Max.

SD size: 32GB (approx. 240 hours). Squelch recording function to

avoid blanks.

Numerous powerful features: High-speed scan & search,

two-band & offset reception, High-speed FFT spectrum display on

built-in LCD screen with selectable bandwidth 400kHz to 10MHz,

CTCSS, DCS, DTMF, AFC, voice inversion, auto-notch, noise

blanker, noise reducer, analog video out, etc...

Continuous coverage from 9kHz to 6GHz!

1 2 3 4

Comentários a estes Manuais

Sem comentários

AOR AR-ALPHA Manual do Utilizador Página 2

Comentários a estes Manuais

Manuais e produtos relacionados com Recetor AOR AR-ALPHA