The Advanced Mesh Network Controller (AMNC) is a hardware module designed specifically as a platform for Software Defined Radios (SDR), and is the engine that powers the OFDM-AB data mode and IP400 mesh networking. The AMNC will be in production in Q4, 2026.

The AMNC is fully programmable and field upgradeable. It utilizes a high end ST microcontroller that runs at 200MHz, an FPGA that can be used as a co-processor, and has a codec that is similar to those used in PC sound cards, which has two independent radio ports. Development tools for the processor and FPGA are freely available from the manufacturer.

It can be used in a standalone mode where it is connected to a PC with a USB ‘C’ serial connection, or as a Pi HAT (Hardware attached on Top), using the same serial connection as well as an additional higher speed SPI (Serial Peripheral Interface) connection.

Component	Specification
Processor	ST Microelectronics STMF722, 200 MHz
FPGA	Efinix Trion T20, 200MHz with internal flash
Codec	TI Codec, 2 channel 96dB snr, 16-24 bits
USB	Cypress CP2102, 115200 bps
Pi Interface	Serial port or SPI at 2mb/s
Debug	Debug and JTAG port for development
Expansion	Access to FPGA and a dedicated SPI port
Clock generation	Si5351 programmable PLL, 1ppm accuracy
LED’s	Heartbeat, green/red bi-colour for status
Additional Storage	EEPROMs for setup information and HAT data
Radio ports	Dual ports with buffered PTT and COR sense
Radio connector	DB-15
Radio LED’s	Carrier on and PTT active
Current consumption	Less than 150mA

Optional Extras

For development, a programming module connects to the debug connector, which implements two separate USB connections, one to an FT2232 module to program the FPGA, and a second to an ST-LINK module for downloading, flashing and debugging code, which also implements a second UART that can be used by the firmware for debugging purposes.

A GPS receiver, in development, can also be mounted on the board, using the same debug connector. The receiver can utilize an internal or external antenna.