Category Archives :User Tutorial

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.  ...

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.   ...

Retevis RT72 support upload 13,0000 DMR contacts. This blog learn how to load 13,0000 DMR database into your RT72  ...

When updating the HD1 firmware, how to do if you get " please check connection" Error.  ...

How to receive SSTV images from the International Space Station ISS?   ...

We got some customers feedback said they when they upgrade RT84 firmware or program, they will get an error" Excel Fail; firmware error; even no DMR users are displayed. Today I will tell you how to disappear these errors.  ...

For radio amateurs, they use Yagi Antenna to extend racio communication range. Nowdays, many amateurs use Yagi antenna to receive the signals from the satellite.  ...

A hotspot that can help you to access the talk groups when you don't have a DMR repeater nearby.  Normally hotspots are capable of multiple modes as well, such as D-Star, P25, DMR+, YSF and NXDN… but we are only going to talk about DMR here.   ...