New “AR-2300” receiver.
The AR2300 communications receiver from AOR is ideally suited for radio and spectrum monitoring in various commercial and government applications, as well as for use in radio investigation services.
Digital signal processing:
45MHz of the 3rd intermediate frequency is directly digitized for digital signal processing for demodulation and spectrum display by a PC. No automatic gain control (AGC) is employed in the analog circuitry to allow accurate level monitoring across the IF bandwidth.
Monitoring and storage of up to 2000 frequencies, receiving modes, antenna port, attenuator settings, constant monitoring of one frequency or scanning of selected frequencies. – Searching a frequency range with freely selectable start and stop frequencies and step widths of 0.01 kHz (10Hz) to 999.99 kHz.
– Detection of undesired emissions including pulsed emissions.
– Detection of unlicensed transmitters communicating illegally or interfering with licensed transmission.
– Protection against eavesdropping by detecting miniature transmitters (bugs)
– Monitoring of one’s own radio transmissions in a service band and monitoring of selected transmissions.
– Remote-controlled operation via an optional LAN controller.
Technical Features:
– Computer controlled Black-Box
All functions of the AR2300 can be used with a lap-top or desktop PC that runs under Windows XP or higher OS. The AR2300 can be controlled remotely through an optional LAN controller.
– Digital signal processing 45MHz of the 3rd intermediate frequency is directly digitized for digital signal processing for demodulation and spectrum display by a PC. No automatic gain control (AGC) is employed in the analog circuitry to allow accurate level monitoring across the IF bandwidth.
– High performance analog front-end The analog RF front-end is carefully designed and by CAD to gain optimum performance across the entire receiving frequency range of 40KHz to 3150MHz.
– Direct digital sampling The HF stage (40kHz to 25MHz) employs direct digital sampling architecture that offers exceptional linearity across the band.
– Direct digital synthesizer (DDS) local oscillator Direct digital synthesizer is employed for the 1st local oscillator that ensures fast frequency switching for memory channel
scanning and frequency band search operation.
– Accurate reference frequency The AR2300 is capable of using a GPS pulse signal for an accurate time base for the local oscillator circuit. 0.01ppm frequency accuracy for the 10MHz internal master oscillator is obtained when synchronized to a GPS signal source. The optional digital I/Q output board is capable of acquiring GPS
data for time-stamping digital I/Q data. Lightweight net-book PC can be used as control head for the AR2300. (PC not included. ) The future of radio monitoring.