{"product_id":"duplex-mmdvm-hotspot-support-d-star-dmr-ysf-pi-oled-revision-1-3-vhf-adf7021-us","title":"Duplex MMDVM Hotspot Support D-Star DMR YSF Pi+ OLED Revision 1.3 VHF ADF7021 US","description":"\u003ch2\u003eDuplex MMDVM Hotspot Support D-Star DMR YSF Pi+ OLED Revision 1.3 VHF ADF7021 US\u003c\/h2\u003e\u003cp\u003eUpgrade your digital radio setup with this high-performance duplex MMDVM hotspot module. This premium aftermarket part is designed for enthusiasts who demand stable and versatile communication across multiple digital modes. Featuring a dual ADF7021 design, it allows for true duplex operation, doubling your capacity with two time slots on DMR. This revision 1.3 board is engineered for 24\/7 reliability, ensuring you stay connected to the global ham radio community with ease. Paired with a Raspberry Pi and the included OLED screen, this hotspot provides clear visual feedback and a seamless user experience for both new and seasoned operators.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh-performance 32-bit ARM processor for fast and reliable signal processing\u003c\/li\u003e\n\u003cli\u003eDual ADF7021 on-board enables duplex operation with two time slots on DMR\u003c\/li\u003e\n\u003cli\u003eSupports multiple digital modes including DMR, D-Star, P-25, and System Fusion (YSF)\u003c\/li\u003e\n\u003cli\u003eIncludes an integrated OLED display for real-time status updates and frequency monitoring\u003c\/li\u003e\n\u003cli\u003eTantalum capacitor filtering circuit ensures stable, long-term operation for 7x24 hour use\u003c\/li\u003e\n\u003cli\u003ePre-loaded firmware that is easily upgradeable via software for future-proof connectivity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Models\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRaspberry Pi Zero, Zero W, and Zero 2W\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi 2B, 3B, 3B+, and 4B\u003c\/li\u003e\n\u003cli\u003eOrange Pi (specific models supporting GPIO MMDVM hats)\u003c\/li\u003e\n\u003cli\u003eCompatible with Pi-Star and WPSD software distributions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHardware Revision: 1.3\u003c\/li\u003e\n\u003cli\u003eRadio Frequency Support: UHF (430-450MHz) and VHF (144-148MHz)\u003c\/li\u003e\n\u003cli\u003eRF Power: Up to 10mW\u003c\/li\u003e\n\u003cli\u003eAntenna Connectors: Dual SMA connectors (Antennas included)\u003c\/li\u003e\n\u003cli\u003eModem Selection: STM32_HS_GPIO\u003c\/li\u003e\n\u003cli\u003eInterface: Onboard LEDs for TX, RX, PTT, and Mode status\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs this an OEM part?\u003c\/strong\u003e\u003cbr\u003eNo, this is a premium aftermarket part designed to be fully compatible with Raspberry Pi hardware and digital radio protocols; it is not manufactured by the original equipment manufacturer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm compatibility?\u003c\/strong\u003e\u003cbr\u003eThis module is designed to mount directly onto the GPIO pins of standard Raspberry Pi models (0 through 4). To ensure full compatibility, verify that your specific controller board supports the MMDVM_HS_Hat layout and that you are using updated Pi-Star or equivalent software.\u003c\/p\u003e\u003chr\u003e\u003cem\u003eImportant: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.\u003c\/em\u003e","brand":"Northline Tools","offers":[{"title":"Default Title","offer_id":42846163894343,"sku":"ZZ2M00714","price":178.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/7123\/5399\/files\/10_4912541f-0a0c-450f-8ea2-994af26d9b7f.jpg?v=1780618157","url":"https:\/\/www.northlineparts.com\/products\/duplex-mmdvm-hotspot-support-d-star-dmr-ysf-pi-oled-revision-1-3-vhf-adf7021-us","provider":"Northline Parts","version":"1.0","type":"link"}