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14 Things you need to know about Retevis RT73.  ...

Do you know how to get QSO with amateurs from all over the world use Ailunce HD1?  ...

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

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.  ...

the difference between RT90 and RT73.   ...

Promiscuous mode is a feature of DMR radios, but not all DMR radios have this mode. The radio is designed for the commercial market doesn't have promiscuous mode. What does promiscuous mode actually do? let me give you a demonstration of this on Retevis RT73 now.   ...

Why and How to update the Retevis RT72 firmware  ...

At the beginning of 2021,we are very glad to know AilunceHS2 has a Bluetooth Control APP runs on Apple IOS system.  ...

When rainy days the commonly used bands of 2 meters and 70 centimeters the quality of amateur radio communications have been greatly affected. In the 2 meter band, the loss may reach 6dB.  ...