There are 2 repositories under lanchonlh topic.
KISS TNC client (application) for working with Lanchonlh HG-UV98 over Serial/TCP
This is a tool to connect UISS or UI-View32 to Lanchonlh with AGWPE via SERIAL Bluetooth
Lanchonlh HG-UV98 Russian Manual (инструкция на русском)