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Why the parrot test has no response

When we want to test our radio and can't find someone to help us, we can set the parrot channel to do the Echo test. but sometimes the parrot test has no response, why?  ...

Read more  Echo Test,  Parrot,  amateur radio

What's the SHTF radio?

SHTF radio is often thought to be essential to prepare for disaster. but which model of the radio do we select to be the SHTF radio?  ...

Read more  SHTF Radio,  ham radio

The Battery Usage Time of Two Way Radio

In the radio communications industry, we talk about radios being on a specific cycle. It’s called the 5-5-90% cycle time assumption. This basically means that when you use a radio, 5% of your time is spent transmitting, 5% receiving and 90% on standby.  ...

Read more  The Battery Usage Time of Two Way Radio

Two Way Radio Battery Types

Two way radio batterys can be divided into lithium battery, nickel chromium battery, nickel hydrogen battery and so on.lithium battery is the most convenient and the best battery in these kinds of walkie-talkie batteries.  ...

Read more  two way radio battery types

Three new TAC talkgroups have been added to the Brandmeister talkgroups list

Three new TAC talkgroups have been added to the Brandmeister talkgroups list: 901 WorldWide TAC 1 902 WorldWide TAC 2 903 WorldWide TAC 3  ...

Read more  BrandmeisterNews,  Brandmeister Worldwide “TAC” talkgroups

How to do Factory Reset and Initialize on Retevis RA25

On Retevis RA25, if it seems to be malfunctioning because of wrong operation or setup, you can do a factory restore or initialize on the mobile radio directly.    ...

Read more  Retevis RA25

Display Technology used on Walkie-Talkies

There are different types of display screens used on walkie-talkies, such as the segment code screen that can often be seen on Yaesu, the TFT color display that is currently seen on some two way radios, and the dot matrix screen on the entry-level machine Baofeng UV5R. Below we Just learn about the technology of these screens.  ...

Read more  Display Technology used on Walkie-Talkies

Retevis RA25UV Dual Band Mobile Radio PC Programming Tutorial

There have two versions of Retevis RA25, GMRS and UV dual band version, as we all known, GMRS is only for US users. Today, let us learn how to program the RA25 UV band mobile radio.   ...

Read more  Retevis RA25 mobile radio

What's the NXDN

NXDN is short for Next Generation Digital Network, and a type of digital technology like DMR.  ...

Read more  Amateur Radio,  NXDN

How to Turn on the FM Radio on Retevis RA25

Retevis RA25 is a amateur mobile radio, the frequency range is from 144-146Mhz, and 430-440MHz, and also it can receive the FM radio from 65-108Mhz in 100Khz steps. But there is no menu for FM radio. Do you know how to turn on the FM radio on this mobile radio?  ...

Read more  Retevis RA25