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How to program RT73 works on a digital repeater. Take RetevisRT97P as an example.  ...

Retevis RT3, RT8, RT82, RT3S, and RT90 are a  series of DMR walkie-talkies. But we may meet the same question after we programed the walkie-talkie and then turn on the radio, radio shows Unprogrammed like below picture. Why?  ...

We know AILUNCE HD1 is an FPP ham radio. It allows you to program the radio without a computer. Expect this, there are lots of little details that make you feel different from other radios.  ...

etiquette tips for this Amateur Radios QSO  ...

Ailunce HD1 is a ham radio that supports switching between talk-around and repeater mode. Do you know why and how to switch to turn around mode for Ailunce HD1?  ...

the reason that may affect Bit Error Rate  ...

How to connect to a Brandmeister repeater on RT73  ...

“Add amateur radio to your disaster toolkit” was submitted by the San Juan County Amateur Radio Society.   ...

For DMR repeater, we need to pay attention to frequency, offset, time slot, color code, contact. Some other radios may have to pay attention to work mode, like HD1. today, we will take HD1 as an example.  ...

The DMR is not compatible with P25 systems. so it is impossible to receive other digital modes like P25 on AilunceHD1.  ...