Specification:
Product Name: MMDVM_HS_Dual_Hat
Compatibility: Pi-star software and raspberry hardware (rpi 0-3), not compatible with new pi4b without removing right socket
Operating Frequency Bands: 144-148, 219-225,(Main Band)420-475, 842-950 MHz
Duplex Mode Operating Frequencies: RX: 438.000000 TX: 433.000000; RX: 145.000000 TX: 433.000000
Simple Mode Operating Frequency: RX: 438.000000 TX: 438.000000
Radio/Modem Type: STM32-DVM/MMDVM_HS-Raspberry pi Hat(GPIO) or any other (GPIO board)
for Offset: 0 as default value in pistar
PCB Size: 65*56MM
Weight: 35 grams

Features:
1. Compatibility: This product can be set up with Pi-star software and Raspberry Pi (rpi 0-3).
2. Multifunctional: It has Duplex Repeater and Simple Controller modes providing versatility in operations.
3. Radio Frequency: It operates in multiple radio frequencies ranging from 144 MHz to 950 MHz.
4. Update: Comes with a 3225 TCXO offsett 0 for precise frequency control.
5. Lightweight yet Durable: With a compact size of 65*56MM and a weight of 35 grams, this product is designed to be sturdy and portable.

Package Includes:
1 x Module Board
1 x Display Screen(Optional)
1 x USB(Optional)
2 x Antennas(Optional)