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After you download RT73 software, you can find that it is very different with other radio's software. if you are familar with DMR, you will figure out how to program RT73 quickyly. When programming RT73, here are something you need to know.   ...

The instruction of RT73 firmware upgrade.  ...

Retevis RT73 as a dual band mini Mobile Radio supports 200.000 DMR Contacts. Today, let's we learn how to upload 200.000 DMR contacts into RT73.  ...

RT73 as a dual band DMR mobile radio is very popular now. This is a undersized mobile radio than others in the market. It's an entire radio that's the size of a remote head. No need to mount a separate box, just the "head."  ...

how to connect Wifi between MMDVM hotspot and mobile phone.  ...

The RT74 portable single-frequency repeater recently is developed by Retevis is with the latest technology, the most stable components, the most advanced production technology. It is a lightweight, ultra-portable design, minimal installation DMR repeater.  ...

we get a very imprssion experience how to receive SSTV image with AilunceHD1.  ...

Frequency reverse means reverse radio transmit frequency to receive frequency. and at the same time exchange the CTCSS tone.   ...

In amateur radio world, one of ham's favorite radios is the SDR transceiver. So what's SDR radio? What is the difference between SDR and traditional transceiver ? what are advantages and disadvantage of SDR? Let's study together.  ...

The specification of walkie-talkie is an important reference for us to know whether it meets our needs. For example, the working mode of walkie-talkies is often marked with words such as F3E or F2D. Do you know what it means? Today let's study together.  ...