Bye-bye, trimpots. The official DVMProject duplex modem has 100% software calibration. Made for use with DVMHost and DVMFirmware, this modem allows you to turn any radio into a fully digital-capable base station.
DVM-V1 Modem boards are available from the W3AXL Online Store. Purchasing through W3AXL supports development efforts for the DVMProject team and future hardware projects!
Schematics and an interactive BOM are available here for troubleshooting/debugging/experimenting. Have fun!
See the below image for radio interfacing information via the RJ45.
Support is available on our Discord server - there are many users and project members online who can help with any issues you may encounter. Join here!