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Category Archives :User Tutorial

How to connect Ailunce HD1 to a DMR Hotspot

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

Read more  How to connect Ailunce to a DMR Hotspot,  Ailunce DMR Hotspot,  MMDVM DMR Hotspot

How to program Retevis RT73 Mini Mobile Radio

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."  ...

Read more  Retevis RT73,  RT73 mobile radio

First time receive ARISS worldwide SSTV Image with AilunceHD1

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

Read more  SSTV IMAGE,  ARISS SATELITE,  ARISS worldwide SSTV event

Frequency Reverse function on AilunceHD1

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

Read more  radio frequency reverse,,  reverse frequency

How to load DMR contacts database in Retevis RT72

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

Read more  Retevis RT72,  RT72 database

Repeat the problem "Please check connection" when upgrade HD1 firmware

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

Read more  HD1 firmware update tips

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

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

Read more  SSTV,  how to decode sstv,  ARISS SSTV

How to disappear the error when programming RT84

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.  ...

Read more  RT84 FIRMWARE ERROR,  RT84 program error

Learn something about Yagi Antenna

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.  ...

Read more  Yagi Antenna