Enhance your digital radio communication setup with this advanced Hotspot Board, specially designed for Pi-star general configuration supporting MMDVM_DUPLEX operation. This versatile board is compatible with STM32-DVM and MMDVM_HS Raspberry Pi Hats (GPIO) or other GPIO boards, enabling seamless integration with various radio and modem types for flexible deployment in duplex or simplex modes. Key Features: · Pi-star General Configuration: Fully supports MMDVM_DUPLEX, allowing easy setup for duplex repeaters or simple mode operations to suit different communication needs. · Wide Radio Frequency Range: Covers multiple frequency bands including 144-148 MHz, 219-225 MHz (primary band), 420-475 MHz, and 842-950 MHz, providing broad compatibility with various radio systems. · Duplex and Simplex Modes: Supports duplex mode examples such as RX:438.000000 MHz / TX:433.000000 MHz and RX:145.000000 MHz / TX:433.000000 MHz, as well as simplex mode RX and TX on the same frequency, offering flexible channel configurations. · Firmware and Offset Management: Features default RXOFFSET=0 and TXOFFSET=0 settings with a low Bit Error Rate (BER) under 5%, which can be adjusted via offset if needed to optimize signal reception. · Easy Firmware Updates: Supports firmware updates through Pi-star expert mode and SSH access, ensuring your hotspot board stays up-to-date with the latest enhancements. · Compact and Lightweight Design: Measures 80 x 50 x 20 mm and weighs only 10g, making it easy to install and integrate into your existing Raspberry Pi hardware setup. · Compatibility Notice: Designed for Mini Duplex MMDVM boards and compatible with Raspberry Pi models 0 through 3; note that Raspberry Pi 4B requires removal of the right socket for installation. Specifications: · Name: Hotspot Board · Material: Printed Circuit Board · Package Size: 80 x 50 x 20 mm (3.15 x 1.97 x 0.79 inches) · Package Weight: 10 g (0.35 ounces) Package Includes: · 1 x Hotspot Board This Hotspot Board offers a reliable and flexible solution for amateur radio enthusiasts and professionals looking to enhance their digital voice communication systems. With broad frequency support, easy configuration, and compact design, it provides an essential component for building efficient MMDVM duplex or simplex hotspots.