"rt21 frequency"

RT21 and H777  are  analog radios. To make H777 communicate with RT21  is very easy: Just to set the RX and TX frequencies and the CTSCC/DCS (  same as QT/DQT) the same .   Please operate the followings  step by step: Preparations: 1, you need a programming cable for the two radios. 2, you need the software of the two radio. ( we will send the software in a separately e-mail). You can find the programming cable here ( the two radio can use the same one) : here is the link: https://www.retevis.com/2-pin-programming-cable-for-retevis-h777#C9018AX1 About how to install the software,here is the blog:https://www.twowayradiocommunity.com/how-to-programme-h777   Now we start to set the  frequency and QT/DQT (also name as CTCSS/DCS)  of H777. 1.For example: channel…

Sometimes customers ask us:I want walkie talkies to communicate with others,I like RT21 and RT5,which radio do you recommend?They are all analog radios,what the difference of these two radios?Let detailed discussion it. Output power The power of RT21 is 2.5W,the usual transmission distance of the peer is 0.5–2.5miles,RT5 is 5w radio,so in the communication distance,RT5 can reach longer than RT21.However,the distance also is affected by your using  environment,longer range in open area than in building. Frequency range RT21 is 400-480MHz,RT5 is dual Band, dual display, dual Standby.UHF 400-520MHz + VHF/136-174MHz,so it is more convenience to use RT5.It is especially convenient for Staff of Property Management and entertainment. RT5 adopts humanism design, making it smart in shape, advanced in function and…

RT21 walkie talkie is the first choice for many customers, like walkie-talkies because of their complete functions and low price. The following is a summary of some of the questions,customers often feedback, so that everyone has a more comprehensive understanding of the RT21 walkie-talkie. RT21 Walkie Talkie Common FAQ 一. What about Frequancy? The RT21 walkie talkies frequency is FRS,using directly, and it has strong penetrating power. It is very good to use buildings, office buildings and so on.   二. What if the comparison between RT21 and RT 22 ? Both of them are FRS radios, but they usually using different business, RT21 walkie talkie have the strong radio body, so that work well for security and construction site.…

Usually the walkie-talkie can be programmed to change or set its own parameters (such as frequency or CTCSS). And the walkie-talkie without a keyboard needs to be programmed by connecting a computer through a programming cable. For example the Retevis RT21. Here are 2 ways about programming: 1. You could download the software from our website: https://www.retevis.com/resources-center/ , please use the “USB Universal Driver”. 1) Please kindly install the programming software and USB driver to your computer. (The files are not compatible with MAC )   2) Open the software, and use the programming cable to connect a radio with computer, the radio need keep power on, also you need to choose the correct port. If you do not know…

RT21:One walkie talkie can not talk with others When we buy walkie-talkies, there are always some problems which cause one of the walkie-talkie can not work together with others（such as RT21).But how to check the problems to fix it?you can find the reasons from the following aspects:   Troubleshooting: 1.Adjust volume to the Maximum,and make sure these radios are set to the same frequency and CTCSS.If it is different,it can be set by programming on Chirp and PC.   2.Please check if there is a red light when transmitting and a green light when received,   3.If the indicator light work well.You can check if they are all on the same frequency and CTCSS by programming.   4.Change channel to test…

RT21 walkie talkies is suitable for all kinds of business，will have good performance in hotels, churches, restaurants, schools, construction sites and other businesses. At the same time, RT21 walkie talkies has a FRS frequency of 50 CTCSS / DCS that will keep your group communication away from interference.   Now let’s take the example of a group of people in different parts of a company. Teach you how to set it up. A company generally includes the general manager’s office, administrative department, operation department, finance department, and publicity department. Since the terms of reference of different departments are different, only the internal staff of the department is needed for coordination and cooperation. How to achieve it? The administrative department is…

If you have a RT21,while other radios are different types from yours , what should you do?Do not worry,that is easy to communicate with them, please read the method below,let us take RT6 as an example. Step 1: programming RT21 radio For example: In channel one RX frequency:462.23750 CTC/DCS DEC: off TX frequency : 462.23750 CTC/DCS ENC: off Note: You can set up the CTCSS according to your needs, CTCSS will keep your communication privacy.You need to know, two analog radios can work together under same frequency and same CTCSS. Step 2： Programming RT6 radio You can programme RT6 by hand or in RT6 software RT6 walkie talkies have the keypad, so that you can program your frequency manually.Just set…