AOR AR2300IQ – Black-Box High-Performance Communications Receiver with PC/LAN Control


The AR2300 is a Black-Box version of the AR5001D, a high-performance communications receiver from AOR. The AR2300 is ideally suited for radio and spectrum monitoring in various commercial and government applications, as well as for use in radio investigation services.


The AR2300 is a Black-Box version of the AR5001D, a high-performance communications receiver from AOR. The AR2300 is ideally suited for radio and spectrum monitoring in various commercial and government applications, as well as for use in radio investigation services.

A typical application of AR2300 includes: Signal detection, Coverage and field-strength check,  Spectrum occupancy and on-the-air monitoring, Signal search in frequency and memory scan mode, and Signal and spectrum analysis through an optional I/Q board with supplied AR-IQ software.

Detailed Applications:

  • Monitoring of given frequencies, e.g. storage of 1 to 2000 frequencies, receiving modes, antenna port, attenuator settings, constant monitoring of one frequency or scanning of selected frequencies
  • Searching in a frequency range with freely selectable start and stop frequency and step widths of 0.001 kHz (1Hz) to 999.99 kHz
  • Detection of unlicensed transmitters communicating illegally or interfering with licensed transmission
  • Protection against tapping by detecting miniature transmitters (bugs)
  • Monitoring of one’s own radio exercises in a service band and monitoring of selected transmissions
  • Remote-controlled operation via an optional LAN controller in coverage check and monitoring systems
  • Detection of undesired emissions including pulsed emissions

Computer-Controlled Black-Box. All functions of the AR2300 can be used with a laptop or desktop PC that runs under Windows XP, Vista and 7. The AR2300 can be controlled remotely through an optional LAN controller.

Super Wide Range. Continuous frequency coverage: 40 kHz to 3.15 GHz in 1 Hz step with 1ppm frequency accuracy. (Frequency accuracy can be optimized to 0.01ppm with an optional GPS receiver).

Multi-Mode Reception. High-performance digital signal processing circuitry offers a variety of reception modes as well as decoding options. Receiving mode includes USB/LSB, CW, AM, SAM, FM, Wide FM and FM stereo. The decoding modes include CTCSS, DCS, DTMF and APCO P-25 by an optional P-25 decoder.

High-Performance Analogue Front-end. The RF front-end is carefully designed by CAD to obtain optimum performance across the entire frequency range of 40kHz to 3.15GHz.

Digital Signal Processing. The 45.05MHz IF signal is processed by the independent signal processor for signal demodulation and recovery. No AGC circuitry is used in the analogue stage to ensure accurate level reading as well as to offer IF output signal level linearity against RF input signal.

Direct Sampling Architecture (40 kHz to 25 MHz). The AR2300 employs 14bit/65Ms/s direct sampling receiver architecture for VLF, LF and HF bands. The direct sampling architecture assures high IMD and IP3 characteristics.

Direct Digital Synthesizer (DDS) Local Oscillator. The direct digital synthesizer is employed for the 1st local oscillator that ensures fast frequency switching for memory channel scanning and frequency band search operation.

Simultaneous Reception and Monitoring. Simultaneous reception on HF (below 25 MHz) and VHF-UHF (above 25 MHz) frequencies are possible. For frequencies above 25 MHz, absolute dual-channel reception within an IF bandwidth is possible. Thus, triple channels can be monitored simultaneously.

Analogue VIDEO Demodulation. Composite video output is provided to monitor FM modulated analogue type wireless security camera or frequency search operation for bug transmitters.

SD Audio Recorder. AR2300 is capable of recording demodulated audio directly to the built-in SD media recorder. Compact and readily available, SD memory cards are immune to vibrations and produce no mechanical noise, unlike motor-driven media such as tape or discs. The AR2300 can accommodate up to 32GB SDHC card, allowing up to 240 hours of total recording time using PC-compatible WAV format. The typical continuous recording time with a 1GB SD card is about 8 hours. The recording time can be extended when a squelch operation is employed.

Audio Recording:

  • Type of Recording: Record/Playback function through SD or SDHC
  • SD Card Type: SD or SDHC card per SD Card Association | More than 256MB is required. Use a card adapter for miniSD and microSD cards. FAT16 and 32 only
  • File Format: Windows-compatible WAV file format. RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16-bit mono 17.578kHz
  • Recording Time: Approximately 8 hours of continuous recording by 1GB SD Card. Squelch synchronization is possible to eliminate inactive time

Wideband and High-performance IF Output. 45.05 MHz of intermediate frequency (IF) analogue output with 15 MHz bandwidth is provided for the external peripherals when using AR2300 as the receiver front-end. Between 25MHz to 3GHz, the analogue IF output is correlated within r1.5dB to the antenna input by an accurate signal source with traceability, thus accurate signal monitoring or measurement is possible with appropriate measurement antennas.

Auxiliary Functions:

  • Simultaneous reception Two types of simultaneous reception (dual-watch) are possible
  • 2 Band Reception: One HF (40kHz-25MHz) frequency plus one VHF/UHF(25MHz and above) frequency
  • Offset Reception: Main frequency plus sub-frequency (within ±5MHz from the centre frequency) | Offset reception is possible only for VHF/UHF
  • Triple Reception: Triple receptions are possible by combining simultaneous reception mode. I.E. One HF frequency plus offset reception.
  • Squelch System: CTCSS, DCS
  • Demodulation Aid: Auto Notch Filter (NOTCH), De-Noiser(NR), Noise Blanker, IF Shift, CW Pitch, AGC, AFC, DTMF | APCO P-25 Digital voice decoder (option)

Technical Specifications:

Frequency Range40kHz to 3.15GHz
Frequency Resolution1Hz
Tuning StepsProgram 1Hz to 999.999kHz in 0.001kHz increments 2 band reception One HF (40kHz-25MHz) frequency plus one
Receiving ModeUSB/LSB(J3E), CW(A1A), AM(A3E), FM(F3E), WFM(F3E), FM-Stereo(F8E), APCO P-25(D3E) Optional
Number of VFO5 (A through E)
Memory Channel2,000 channels (50 channels x 40 memory banks)
Memory Bank40 banks (each bank can be customized between 5 to 95 channels)
Pass Frequencies1,200 frequencies or 1,200 frequency ranges, 30 frequencies(ranges) x 40 banks
Priority Channel1 (one)
Selected Memory Channel100 channels through memory banks
Typical Scanning SpeedApprox. 100 channels/steps per second
Antenna Impedance50W
Operating Temperature Range0°C to +50°C / 32°F to 122°F
Frequency StabilityLess than ±1ppm after warm-up (5 minutes). Less than ±0.01ppm with an optional GPS unit
Audio Output > 2W into 8W load
Power ConsumptionStand-by: 200mA, Max. Audio: 1.5A
Ground SystemNegative ground
Dimensions (D x W x H)285 x 220 x 70 mm
Weight3kg (6.6 lb.)


Receiver Specifications:

Receiver System40kHz – 25MHz Direct conversion

25MHz – 220MHz Double superheterodyne 

220MHz – 360MHz Triple super-heterodyne

360MHz – 3.15GHz Double super-heterodyne

Intermediate Frequencies1st – 294.5MHz / 1.7045GHz

2nd – 45.05MHz / 294.5MHz

3rd – 45.05MHz

Third-order IMD> +20 dBm at 14.1 MHz

> +9 dBm at 50 MHz

> +5 dBm at 620 MHz

Digital IF Filter Bandwidth200Hz, 500Hz, 1kHz, 3kHz, 6kHz, 15kHz, 30kHz, 100kHz, 200kHz – Receiving mode depended
SelectivityCW – 500Hz -3dB: > 380Hz -80dB: > 500Hz

AM – 6kHz -3dB: > 5.5kHz -80dB: > 6.9kHz

SSB – 3kHz -3dB: > 2.7kHz -80dB: > 3.1kHz

NFM – 15kHz -3dB: > 14.2kH-80dB: > 15.6kHz

WFM – 200kHz -3dB: > 200kHz-80dB: > 250kHz


Input and Output:

Antenna InputANT 1: 25MHz – 3.15GHz, N-J connector

ANT 2: 40kHz – 3.15GHz, N-J connector

10MHz Reference InputSMA-J connector

Typical input: -2dBm±2dBm for 50Ω

45.05MHz Analog IF OutputBNC-J Connector, 45.05MHz±7.5MHz

Typical Output: Antenna input +10dBm for 50Ω

Frequency Range: 25MHz – 3.15GHz only

Digital I/Q Output (Option)USB2.0 compatible isochronous transfer

Digital I/Q output through USB Type-A Jack

Frequency range 25MHz – 3.15GHz only

12kHz Offset Output12kHz offset analogue I/Q through 3.5 mmΦ stereo-phone jack
Line Output3.5 mmΦ stereo-phone jack. (3-wire)
Accessory8-pin miniature DIN
DC Power InputEIAJ MP-121C (5.5 x 2.1 mm) plug. Positive centre
External Speaker3.5 mmΦ miniature phone jack (2-wire)
RS-232C9-pin D-subminiature type (male) – Firmware update and remote control by PC
USBUSB Type-A; USB 1.1/2.0 Jack for PC control
VIDEO Output (Front Panel)RCA Jack, 75Ω 1V p-p


Additional information

Weight3.2 kg