Icom ID-31A Plus 5W UHF D-Star Transceiver
The familiar ID-31A is back with the enhancements introduced with the ID-51A PLUS 2, for the ham who wants to get into D-STAR without breaking the bank!
Easy operation
Just select the destination repeater in "To" and a nearby repeater in "From", and you are ready to call other D-STAR stations. Minimum action required with the simple user interface and DR (D-STAR Repeater) function.
Worldwide digital communication wherever you are
Terminal and Access Point modes enhance the access to D-Star's worldwide network. Communicate long-distance regardless of your location or repeater location.
Share pictures and text messages
Pictures and text messages on an Androidâ„¢ device can be transmitted over D-STAR network using the RS-MS1A application. Data can be sent quicker in the DV Fast Data mode.
IP1X waterproof, compact, lightweight and tough
With Icom's pioneering IPX7 waterproofing and pro-grade construction, the ID-31A PLUS is perfect for your shack or playing in harsh outdoor environments.
DV/FM repeater search function
The DV/FM near repeater search function assists you in accessing nearby repeaters, even in areas you are visiting for the first time. This function searches for nearby repeaters using the repeater memories with GPS position information.
Integrated GPS Receiver
Shows your current location and altitude on the display, and offers location reporting and automatic reply functions in the DV mode. GPS log can be saved in a microSD card.
General
Frequency coverage | USA |
TX: 430.000–450.000 MHz*1 RX: 400.000–479.000 MHz*1 |
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Type of emission |
F2D, F3E, F7W |
Number of memory channels |
1302 channels (including 500 regular channels, 750 D-STAR repeater, 50 program scan edges and 2 call) |
Operating temperature range |
-20°C to + 60°C; -4°F to + 140°F |
Frequency stability |
±2.5 ppm (-20°C to + 60°C on the basis of 25°C) |
Antenna impedance |
50 Ω (SMA) |
Power supply requirements |
7.4 V DC (with BP-271/BP-272), 5.5 V DC (with BP-273) 10.0–16.0 V DC (External DC power) |
Current drain | TX High |
Less than 2.5 A |
RX |
Internal SP (16 Ω): Less than 450 mA (DV), Less than 350 mA (FM, FM-N)
External SP (8 Ω): Less than 300 mA (DV), Less than 200 mA (FM, FM-N) |
Dimensions (W×H×D projections not included) |
58×95×25.4 mm; 2.3×3.7×1 in |
Weight (approximately) |
220 g; 7.8 oz (including BP-271 and antenna) |
Guaranteed range: *1 440.000–450.000 MHz, *2 430.000–440.000 MHz.
Transmitter
Modulation system | DV |
GMSK reactance modulation |
FM, FM-N |
FM reactance modulation |
Output power (at 7.4 V DC) |
5 W, 2.5 W, 1 W, 0.5 W, 0.1 W (High, Mid, Low2, Low1, S-low) |
Spurious emissions |
Less than -60 dBc (High, Mid), Less than -13 dBm (Low2, Low1, S-low) |
Max. frequency deviation |
±5.0 kHz (FM), ±2.5 kHz (FM-N) |
Receiver
Intermediate frequency |
46.35 MHz (1st), 450 kHz (2nd) |
Sensitivity | DV |
Less than -11 dBμ (at BER 1%) |
FM, FM-N |
Less than -15 dBμ (at 12 dB SINAD) |
Squelch sensitivity |
Less than -15 dBμ (Threshold) |
Selectivity |
More than 55 dB (FM), More than 50 dB (DV, FM-N) |
Spurious rejection |
More than 60 dB |
Audio output power | Internal SP |
More than 400 mW (16 Ω load at 10% distortion) |
External SP |
More than 200 mW (8 Ω load at 10% distortion) |