Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

System Diagram

Component Connector End Views

Radio X1

Radio X2

Radio X3 (HP2 with U42)

Radio X3 (U42, except HP2)

Radio X4 (HP2 with UQS or with UVC)

Radio X4 (UQS or UVC, except HP2)

Digital Radio Receiver (U2K)