The blog mainly talk about the Introduction To Basic Electronics

DMR Contact Manager is a custom-designed software package designed for use with Connect Systems CS700/CS701/CS750/CS800/CS801/CS800D radios, Retevis RT3, and similar radios that use the RDT/RDB fil...

This article discusses how to convert mobile antenna to base

The retevis RB68 portable license-free radio, equipped with powerful flashlight and emergency alarm alert, and With 1200mAh large capacity Li-ion battery; usually takes 3-4 hours to fully charge fo...