The highly anticipated AR5700D DIGITAL COMMUNICATIONS RECEIVER is now officially released!

High-end table-top receiver with wide band coverage between 9kHz and 3.7GHz. It supports a variety of digital, as well as analog modes. Some of its outstanding features are:

1)    Digital signal processing:

Input signals after the 45.05MHz IF are converted from analog to digital by a DSP processor. There is no AGC in the analog processing unit, as all processing, including AGC, is done by DSP.

2)    High-performance analog front-end:

Analog signal processing is performed by a computer simulated, high-performance distribution constant filter.

3)    DDS local oscillator:

Instead of the conventional PLL method, the first local frequency is produced by direct digital synthesis. That method allows frequency switching at high speed.

4)    IF output:

An analog IF of 15MHz (+/-7.5MHz) bandwidth is output.

5)    Digital I/Q output:

A digital I/Q signal of 0.9MHz is output via a USB 2.0 interface.

6)    High precision frequency reference:

0.01ppm frequency stability of the 10MHz internal master oscillator is achieved when using the optional GPS receiver unit.

7)    FFT analyzer:

Thanks to the onboard FFT processor, 10MHz wide spectrum data can be output at high speed via serial.

8)    Multi-mode digital voice demodulation:

D-STAR, YAESU, ALINCO, D-CR, NXDN, P25, dPMR, DMR, Mototrbo, TETRA. (Mode dependent restrictions apply)

9)    Video demodulation

By connecting and external TV monitor, it is possible to demodulate the signal of FM modulation security cameras and analog TV broadcasts. When you connect the TV monitor, you can check the demodulated video. Not compatible with digital terrestrial television.

10)    Simultaneous monitoring

2 band reception, offset reception, triple reception (restrictions apply).

11)    SD card slot

You can record the received audio, analog and decoded digital, as well as logs.

12)    12kHz analog I/Q output

Allows DRM broadcasts decoding via a PC and dedicated 3rd party software.

13)    HF direct sampling

When receiving HF signals, the signals are converted directly to digital without entering the mixer. This allows very good linearity characteristics.

Please read this operating manual carefully. This information will allow you to enjoy maximum performance from your receiver. Due to continuous developments of the receiver, firmware and software, we acknowledge that there might be some changes, errors or omissions.

We sincerely hope that the AR5700D will be your monitoring companion for many years to come.



Frequency range 9kHz~3.7GHz
Tuning steps 1Hz~999.999kHz
Operation modes VFO (A~E), memory channel, memory channel scan, select scan, program search, FFT search (cyber search), analog video demodulation
Analog receive modes Digital receive modes

(encrypted signals not supported)

FM, FM-stereo, AM, synchronous AM, USB, LSB, CW, analog I/Q, FM video.

D-STAR / GMSK / AMBE DV mode only

YAESU / C4FM / AMBE+2 V/D narrow mode only

ALINCO / GMSK / AMBE EJ47 (F1E) mode only

D-CR / C4FM / AMBE+2

NXDN / C4FM / AMBE+2 6.25kHz mode only P25 Phase 1 / C4FM / IMBE Conventional mode only dPMR / C4FM / AMBE+2 Tier 1 only DMR / C4FMx2 / AMBE+2 Tier 1 and Tier 2 only TETRA direct mode (T-DM) / n/4 shift QPSK / ACELP TETRA traffic channel (T-TC) / n/4 shift QPSK / ACELP

Number of VFO’s 5
Memory channels 2000 (50 channels x 40 memory banks). Banks customizable from 5 to 95 channels.
Priority channel 1
Select memory channels 100 (via memory banks)
Search banks 40
Pass frequencies 1230 (30 per memory bank + 30 for VFO search)
Typical scanning speed 100 channels / steps per second (for analog modes)
Temperature range 0°C~+50°C (32°F~122°F)
Frequency stability 0.1ppm (after 5 min. warm-up) or 0.01ppm with optional GPS unit.
Power requirements DC10.7V~16V (2.0A@12V)
Audio output >1.5W into 8Ω load
Current consumption Stand-by: Approx. 200mA, Max. audio: Approx. 1.8A
Grounding method Minus grounding
Dimensions Approx. 304mm(D) x 220mm(W) x 97mm(H) (excluding projections)
Weight Approx. 5kg
Circuit type 9kHz~25MHz: Direct conversion 25MHz~3.7GHz: Double super heterodyne


First: 321.95MHz / 412.05MHz Second: 45.05MHz


Digital signal processing
IF filter bandwidths 200Hz, 500Hz, 1kHz, 3kHz, 6kHz, 15kHz, 30kHz, 100kHz, 200kHz (choice is mode dependent)

Automatically selected and non-changeable for digital modes.


Selectivity (typical values) CW 500Hz 380Hz (>-3dB) 500Hz (<-60dB) AM 6kHz 5.5kHz (>-3dB) 6.9kHz (<-60dB) SSB 3kHz 2.7kHz (>-3dB) 3.1kHz (<-60dB) NFM 15kHz 14.2kHz (>-3dB) 15.6kHz (<-60dB) WFM 200kHz 200kHz (>-3dB) 250kHz (<-60dB)
IIP3 (typical values) 14.1MHz +20dBm Preselector off 50MHz +6dBm Preamp off 620MHz +5dBm Preamp off 1250MHz +3dBm Preamp off 2450MHz +3dBm Preamp off
Spurious rejection (typical values) 40kHz~25MHz >60dB Preamp off 25MHz~2GHz >60dB Preamp off 2.0GHz~3.7GHz >60dB Preamp off
Noise figure (typical values) 25MHz~1GHz <12dB Preamp off 1GHz~2.75GHz <16dB Preamp off 2.75GHz~3.7GHz <16dB Preamp off
Sensitivity SSB

10dB S/N 3kHz


10dBS/N 6kHz


12dB SINAD 15kHz


12dB SINAD 200kHz

40kHz ~ 50kHz <6.0μV <15.μV
50kHz ~ 60kHz <4.0μV <10.0μV
60kHz ~ 80kHz <3.0μV <7.0μV
80kHz ~ 100kHz <1.5μV <4.0μV
100kHz ~ 25MHz <0.7μV <2.0μV
25MHz ~ 2.75GHz <0.5μV <1.0μV <0.4μV <1.5μV
2.75GHz ~ 3.7GHz <0.7μV <1.7μV <0.6μV <3.5μV


Simultaneous reception: (analog modes only)
Dual band reception Offset reception Triple reception One frequency below and one above 25MHz.

Main frequency + sub-frequency within +/-5MHz from main frequency. Over 25MHz only. Combination of one HF frequency + offset reception

Squelch modes CTCSS, DCS, data-mute
Demodulation support Auto-notch filter (NOTCH), de-noiser (NR), noise blanker (NB), analog voice descrambler (SCR), IF shift (IF-SFT), CW pitch (CW PITCH), AGC, AFC, DTMF
FFT features FFT search (cyber search), spectrum display


Digital signal info display:
D-STAR Call sign (sender & repeater)
D-CR User ID, 15-bit scramble code
NXDN RAN code, 15-bit scramble code
P25 NAC code
DMR Color code, slot number
TETRA traffic channel Slot number


Audio recording
Types of recording Received audio recording / playback and logging via SD card.
SD card compatibility SD or SDHC type, 256MB to 32GB.

File system FAT 16 or FAT 32 only.

MiniSD and microSD cards require an SD card adapter.

File format compatibility Windows compatible WAV file format.

RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16-bit mono 17.578kHz.

Recording time Approx. 8h of continuous recording per 1GB. Squelch synchronization possible to eliminate inactive time.
Log recording Logs are written into the audio wav file and can be accessed and played back with a special PC utility.


Inputs & outputs:
Antenna inputs (ANT1) 25MHz~3.7GHz N-J socket 500
(ANT2) 9kHz~3.7GHz N-J socket 500
10MHz reference input SMA-J socket

Typical input +2dBm, 500

45.05MHz IF output BNC-J socket, 45.05MHz±7.5MHz Typical output: Antenna input + 10dB, 500
Digital I/Q output 0.9MHz bandwidth via USB 2.0 compatible isochronous transfer. Use supplied PC software AR-IQ-III. USB type B socket
Analog I/Q output 12kHz offset output via 3.5mm stereo phone socket Mode: AIQ, via LINE socket
LINE output 3.5mm stereo phone socket. -10dBm (6000)
Headphones output 3.5mm stereo phone socket
External speaker output 3.5mm mono phone socket. (80)
(ACC1) 8-pin miniature DIN socket for optional GP5001 GPS receiver unit.
(ACC2) RJ-45 socket for optional antenna selector
(AUX1) RS232C, 9-pin D-subminiature (male). For firmware updates and remote control per PC.
(AUX2) 8-pin miniature DIN socket for future applications.
USB USB 1.1/2.0 compliant, USB type B socket. For remote control per PC.
Analog video out RCA socket, 750 μV p-p
DC power input DC barrel socket (5.5/2.1mm), center positive

Supplied accessories:

AC power adapter, SD card, operating manual, PC control software with license dongle, two USB cables.


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