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Retevis RT73 Dual Band Digital/Analog 20W Mini Mobile Radio is coming

Are you looking for a DMR mobile radio that could easily fit on your vehicle’s dashboard. Yes, here it is. Retevis RT73 which is the perfect size you are looking for. It has all the bells and whistles you wanted from frequency range, GPS, build quality and most of all SIZE.  ...

Read more  Retevis RT73,  mini Mobile Radio

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

Tips for Beginners to Use DMR Hotspot

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.   ...

Read more  DMR Hotspot,  Tips for DMR Hotspot

Learn HD1 every day: Ailunce HD1 Cant Listen to dPMR446 in the UK

dPMR is a different protocol than DMR. So Ailunce HD1 is not able to listen dPMR446.  ...

Read more  PMR446,  HD1 cant listen to dPMR446.

How to Call and Answer a CQ

Calling CQ is the easiest way to get on the radio and talk to somebody if you’re not turning around the band’s looking for someone else calling CQ, you can find a clear frequency and call CQ and see if someone out there hears you.   ...

Read more  how to CQ,  CQ CALL,  HAM RADIO CQ

The Signal Report of Amateur Radio

The signal report of an amateur station consists of "R" (Readability, which is the clarity of the signal) that represents the intelligibility of the signal, "S" (Strength, that is, the size of the signal) that represents the strength of the signal, and "T" (Tone) that represents the tone of the signal , That is, the tonal quality of the signal) is composed of three parts, so the signal report is often called "RST".  ...

Read more  RST signal report,  signal report of amateur radio