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How to change the poweron logo on Retevis RT5R by Chirp

CHIRP is a free, open-source tool for programming your amateur radio. It supports a large number of manufacturers and models, as well as provides a way to interface with multiple data sources and formats. and now there are many Retevis radios support program by Chirp.   ...

Read more  Retevis RT5R,  RT5R ham radio,  Chirp

Which Walkie-Talkie Charging Method Do You Like?

A two-way radio (or walkie-talkie) is now a common part of everyday life, regardless of whether it is used for personal or professional purposes. and now there have many charing method for different walkie talkies.   ...

Read more  walkie talkie charging method,  USB Type-C charge

Why my Retevis RT3S only has few items under radio settings menu?

Gregg emailed us and said that for some reason my RT3S only has "clock" and "voice announcement" under radio settings now after pushing a codeplug. Do you encounter the problem? if yes, let's learn how to solve it.  ...

Read more  Retevis RT3S,  MENU

How to Scan a CTCSS/DCS Tone on Retevis RT5R Ham Radio

CTCSS/DCS scan is a very useful feature for a radio amateur, Retevis RT5R as a ham radio, although there is no CTCSS/DCS menu, but it also can scan the CTCSS/DCS.   ...

Read more  Retevis RT5R,  CTCSS/DCS scanning

Scanning for CTCSS and DCS Tones/Codes on Retevis RT85

As we all known, many analog repeaters have their own frequency and CTCSS Tone, and the frequency maybe always the one many people already remembered, but not the CTCSS/DCS tone. So now, if your radio can scan for a CTCSS/DCS tone, that will be very useful. Today, let us see the CTCSS/DCS scanning on Retevis RT85.   ...

Read more  Retevis RT85 CTCSS/DCS SCANNING

What's the difference between Mechanical life and Electrical Life?

Recently we're doing the research of Ailunce FS01 footswitch for PTT, and the words including Mechanical life and Electrical life appear. Do you know what's the difference between Mechanical life and Electrical Life?  ...

Read more  Foot switch PTT,  Mechanical life,  Electrical life

What's the function of internal battery of Ailunce HD1

Do you know why the time of your Ailunce HD1 won't stop even though you turn off your radio? it's because of the internal battery. In addition to time, do you know what functions the internal battery affects?  ...

Read more  Amateur Radio,  internal battery,  Ailunce HD1

What's Selcall

Selcall is short for Selective calling. It is a type of squelch protocol used in radio communications systems, in which transmissions include a brief burst of sequential audio tones.  ...

Read more  Amateur radio,  Selcall

What's the UTM system?

UTM is short for Universal Transverse Mercator Grid System (UTM). that is said the universal transverse Mercator grid coordinate system, which is a flat rectangular coordinate.  ...

Read more  Amateur Radio,  UTM,  GPS system