Frequency modulation is widely used for radio transmissions for a wide variety of applications from broadcasting to general point to point communications. Frequency modulation, FM offers many advantages, particularly in mobile radio applications where its resistance to fading and interference is a great advantage. It is also widely used for broadcasting on VHF frequencies where […]
FM Demodulation / Detection Tutorial Read More »
This article covers UHF Citizen Band (CB) class licensed (public spectrum) radios. VHF is used in marine applications where range over unobstructed surfaces / water is more important. Ultra High Frequency (~477MHz in Australia) does have significant ability to penetrate objects and is better in built up environments. If you’ve used a cellphone, you’ve used
How to choose their own walkie-talkie – UHF CB Radios Read More »
when one body need get radio signal at the same time, from two different groups with different frequency, radio’s dual display dual standby function seems so important and convenient.
Actual application for Radio’s Dual Display Dual Standby in group activity. Read More »
As using a same radio , some people could make it work for only three years,while some others make it for about six years.See how battery protection works?
How to make your radio work for a longer time ? Read More »
Top 10 Best-Selling Walkie Talkie in United States 2016（results are based on 1,950,128 reviews scanned）
Retevis Top 10 Best-Selling Walkie Talkies in 2024 Read More »
Scrambler Function is a kind of voice encryption ,different from CTCSS . Specifically refers to a programming voice after launch, only one received the same decryption program in order to obtain voice.To communicate with each other only to open the same scramble between loom, If scrambling different, the machine can receive signals, but can not hear
CTCSS VS Scrambler Function Comparison Read More »
How much do u know DMR? What is the relationship between DMR and TDMA ? DMR Markets & Applications ? want to know more ,pls read belows.
Scan function is very important .Many Retevis customer bought H777 , want to know how to open H777 scan function. Easy steps ~
How to Open H777 Scan Function ? Read More »
We referred to World Charger Outlet Plugs for Walkie Talkie In the last blog,and today ,we talk about World Charger Standard Voltage Chart so that u can choose a right walkie talkie charger . Different country use different walkie talkie charger type , u need to choose suitable adapter to fit for your walkie talkie
How to Choose Right Walkie Talkie Charger(TWO) Read More »
