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Pi-Mountable Duplex MMDVM Hotspot – Full Digital Voice Mode Support (DMR/P25/D-Star/YSF), 430MHz/144MHz, 10mW Output, OLED, Rev 1.3 PCB in Saudi Arabia Pi-Mountable Duplex MMDVM Hotspot – Full Digital Voice Mode Support (DMR/P25/D-Star/YSF), 430MHz/144MHz, 10mW Output, OLED, Rev 1.3 PCB in Saudi Arabia Pi-Mountable Duplex MMDVM Hotspot – Full Digital Voice Mode Support (DMR/P25/D-Star/YSF), 430MHz/144MHz, 10mW Output, OLED, Rev 1.3 PCB in Saudi Arabia Pi-Mountable Duplex MMDVM Hotspot – Full Digital Voice Mode Support (DMR/P25/D-Star/YSF), 430MHz/144MHz, 10mW Output, OLED, Rev 1.3 PCB in Saudi Arabia Pi-Mountable Duplex MMDVM Hotspot – Full Digital Voice Mode Support (DMR/P25/D-Star/YSF), 430MHz/144MHz, 10mW Output, OLED, Rev 1.3 PCB in Saudi Arabia Pi-Mountable Duplex MMDVM Hotspot – Full Digital Voice Mode Support (DMR/P25/D-Star/YSF), 430MHz/144MHz, 10mW Output, OLED, Rev 1.3 PCB in Saudi Arabia Pi-Mountable Duplex MMDVM Hotspot – Full Digital Voice Mode Support (DMR/P25/D-Star/YSF), 430MHz/144MHz, 10mW Output, OLED, Rev 1.3 PCB in Saudi Arabia Pi-Mountable Duplex MMDVM Hotspot – Full Digital Voice Mode Support (DMR/P25/D-Star/YSF), 430MHz/144MHz, 10mW Output, OLED, Rev 1.3 PCB in Saudi Arabia

Pi-Mountable Duplex MMDVM Hotspot – Full Digital Voice Mode Support (DMR/P25/D-Star/YSF), 430MHz/144MHz, 10mW Output, OLED, Rev 1.3 PCB

SAR 156
Brand
UCCKEYI
Weight
100 g
All electronics ship with US style plugs. You may need a voltage converter or a plug adapter.
– 1 +

Special Features

  • Dual-band operation supports UHF (430-450MHz/433MHz/900MHz) and VHF (144MHz/220MHz) frequencies with two time slots for DMR, P-25, D-Star and System Fusion protocols.
  • 32-bit ARM processor with onboard LEDs for Tx/Rx/PTT/Mode status. Supports firmware upgrades via software. Includes 3V3 wire re-added in Revision 1.3 for improved stability. Ideal for amateur radio enthusiasts.
  • Designed to mount cleanly on Raspberry Pi models including Pi Zero. Features SMA antenna connector with included antennas. PCB layout matches Revision 1.2 for BOM, Mouser cart and stencil compatibility. No Raspberry Pi included.
  • Supports up to 10mW RF power. Package includes module, OLED display, and two antennas. Note: Without shell. Allow 0.3-0.5cm measurement difference. Colors may vary slightly from images due to screen/lighting.
  • Compatible with Raspberry Pi systems. Uses MMDVM_HS platform with duplex capability. Ideal for ham radio operators seeking a compact, high-performance hotspot solution. Revision 1.3 fixes accidental PCB design error from prior version.

Description

This Duplex MMDVM Hotspot module supports DMR, P-25, D-Star, and System Fusion protocols. Features a 32-bit ARM processor, OLED display, and two onboard ADF7021 RF transceivers for full-duplex operation. Includes SMA antenna connector and two antennas. Designed for Raspberry Pi including Pi Zero. Firmware upgrades via software. UHF/VHF frequencies supported (430-450MHz, 433MHz, 900MHz for UHF; 144MHz, 220MHz for VHF). Revision 1.3 includes a re-added 3V3 wire to PCB layout. Package includes: 1x MMDVM HotSPOT Module + OLED + 2x Antenna.

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