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.  ...

“Why can't I reach the repeater?” This is probably the most common question we hear from new hams. There are so many reasons that can cause your radio can’t reach the repeater, so it is difficult to come up with a quick fix for all situations. In this article, we will show you sever basic reasons caused this issue.  ...

When use a DMR radio, someone often wants to do a temporary transmit to a talkgroup. That means when your current channel is TG1, you also can transmit to TG2 without to change the channel contact. Today, let we see how to setup a temporary talkgroup on Retevis RT73.   ...

Three methods to set Retevis RT73 private call.  ...