AR-DV3 Troubleshooting & Specifications

Summary: Checks for common AR-DV3 problems and the specifications.

Before You Suspect a Fault

• Won’t power on: is the AC adapter connected correctly? Is the USB-PD supply 15 V, 30 W or better?
• No sound: is the volume at minimum, the squelch too high, or voice/tone squelch on? Is the antenna connected?
• Poor sensitivity: is the frequency right, is ATT on, is RF gain enabled, are the mode and IF bandwidth right? Try auto mode.
• Strange audio: tone squelch, voice squelch, wrong D-CR scramble code, or the descrambler.
• Doesn’t respond: key lock or remote mode.
• Auto mode gets cancelled: changing the IF bandwidth, step or mode cancels it.
• Search or scan won’t stop or restarts: check the squelch level, whether the frequency is registered as PASS/SKIP, tone squelch, the FREE function and PROTECT.
• Can’t change channel contents: memory channel PROTECT may be ON.
• Frequency is shifted: the frequency must divide by the step; use step adjust.
• Some digital transmissions can’t be received: not all digital modes are supported.
• Clock drifts: it isn’t as accurate as a clock; adjust it sometimes.
• Won’t start after a firmware update: try the recovery function.

Contact: mail@aorja.com.

Specifications

• Range: 100 kHz-3000 MHz, minimum step 10 Hz.
• Digital: TETRA (direct mode and traffic channels; GSSI filtering optional), COSPAS-SARSAT (optional), DMR Tier 1 and 2, NXDN/D-CR (RALCWI variant not supported), P25 Phase 1 only, dPMR446 Tier 1 only, D-STAR DV mode only, Yaesu C4FM V/D and Voice FR (VW) wide, Alinco EJ-47U only.
• Analogue: FM 6/15/30/100/200 kHz; AM 3.8/5.6/8/15 kHz; SAH/SAL 3.8/5.6 kHz; SSB 1.8/2.6 kHz; CW 200/500 Hz.
• Architecture: direct sampling 100 kHz-18 MHz; double superheterodyne 18-3000 MHz. Stability: +/-1 ppm after 5 minutes.
• Sensitivity (typical): SSB (10 dB S/N) under 0.3 uV; AM under 1.0 uV; FM (12 dB SINAD) under 0.5 uV at 0.1-18 MHz, under 0.3 uV at 18-1500 MHz, under 0.5 uV at 1500-3000 MHz; WFM under 1.0 uV at 60-108 MHz.
• Memory: 3 VFOs, 2,000 channels, 40 search banks, 50 passes per bank or VFO.
• Attenuator/amp: 0 or 20 dB; about 14 dB preamp above 18 MHz.
• Power: DC 12 V (10.7-16 V) 5.5 x 2.1 mm or USB-PD 15 V (30 W+); under 1 A.
• Audio: 1.5 W into 8 ohm.
• Size and weight: 178 x 50 x 180 mm; about 1.5 kg. Operating temperature 0 to 50 C.
• Connectors: BNC antenna; PHONES, SP OUT and LINE OUT 3.5 mm; USB-PD Type-C; front USB Type-C (control, USB Audio class 1, 12 kHz IF); SD card slot.

The US consumer version has cellular blocked and the descrambler disabled in hardware.