Enhance your digital communication setup with this advanced Hotspot Board, specially designed for seamless integration with Pi-star general configuration for MMDVM_DUPLEX systems. Crafted from high-quality printed circuit board material, this compact and lightweight board delivers reliable performance for duplex and simplex radio modes, supporting a wide range of radio frequencies to meet diverse communication needs. Key Features: · Pi-star General Configuration Compatible: Optimized for MMDVM_DUPLEX, ensuring smooth operation with popular digital voice modes. · Flexible Controller Modes: Supports both Duplex Repeaters and Simplex operation, allowing versatile deployment in various network setups. · Wide Radio Frequency Range: Covers primary bands including 144-148 MHz, 219-225 MHz, 420-475 MHz, and 842-950 MHz, enabling broad spectrum communication. · Duplex and Simplex Modes Examples:  - Duplex Mode RX: 438.000000 MHz / TX: 433.000000 MHz  - Duplex Mode RX: 145.000000 MHz / TX: 433.000000 MHz  - Simplex Mode RX/TX: 438.000000 MHz · Compatible Radio/Modem Types: Supports STM32-DVM, MMDVM_HS Raspberry Pi Hat (GPIO), and other GPIO boards for flexible hardware integration. · Firmware and Offset Settings: Comes with default RXOFFSET=0 and TXOFFSET=0 settings for optimal performance; includes updated 3225 TCXO for stable frequency with default BER under 5%. Firmware updates can be easily applied via Pi-star expert mode with SSH access. · Easy Setup and Configuration: Admin access allows expert-level customization for precise tuning and offset correction to maintain signal quality. · Compact and Lightweight Design: Measuring 80 x 50 x 20 mm and weighing only 10g, this hotspot board is easy to install and integrate into your Raspberry Pi hardware setups (rpi 0-3; note for Pi4b removal of right socket required). Specifications: · Name: Hotspot Board · Material: Printed Circuit Board · Package Size: 80 x 50 x 20 mm (3.15 x 1.97 x 0.79 in) · Package Weight: 10g (0.35 oz) Package Includes: · 1 x Hotspot Board This Hotspot Board is an essential component for amateur radio enthusiasts and digital communication professionals seeking reliable, flexible, and efficient MMDVM_DUPLEX solutions. Its wide frequency support, easy firmware updating, and robust design make it ideal for enhancing your digital voice hotspot setup.