Tag Archives :N
What to pay attention to when buying Retevis RT29
- Oct 28,2021
- Yamy
- 0 Comments
- User Tutorial
Retevis RT29 is the long standby, high-power two-way radio for business and outdoor. there are black UHF/VHF/UHF(IP67)/VHF(IP67) versions and orange UHF version to select on Retevis web. so if you need to buy multiple RT29, something you need to pay attention to. ...
What to pay attention to when sending messages with HD1
- Oct 28,2021
- Yamy
- 0 Comments
- User Tutorial
Ailunce HD1 is the ham radio and supports sending SMS messages. but recently some customers say it returns the error message "Impossible to Send" when they try to send a message. Do you know what to pay attention to when sending messages with HD1? ...
What's the center frequency of antenna
- Oct 28,2021
- Yamy
- 0 Comments
- Amateur Radio Topics
Each antenna has a certain frequency range called bandwidth. In the range, the antenna has the lower impedance and the highest efficiency, which is equivalent to a band-pass filter. The best frequency point in the middle of the frequency range is the center frequency, its SWR is the lowest, and the efficiency is higher. ...
Something about Busy Channel Lock-out Function
- Oct 28,2021
- Vivian
- 0 Comments
- Radio Function
Busy Channel Lock-out feature often abbreviated to BCL on two way radios. But it depends on the different radios, on some radio it says BCL, this is also commonly referred to as TX Inhibit on some other radios. For example, on Retevis RB17P, it says "Busy Lock". but on Ailunce HD1 it says" TX Authority". ...
Frequency Sweep Feature on Retevis RA685
- Oct 27,2021
- Vivian
- 1 Comments
- Product Introduction
Radio frequency sweep or frequency sweep or RF sweep apply to scanning a radio frequency band for detecting signals being transmitted there. On Retevis R685 analog radio, you can do a frequency sweeping. ...
Is There a Good Radio Recommend for Entry Level Amateur
- Oct 27,2021
- Vivian
- 0 Comments
- Product Introduction
We often get some questions said" is there a good radio recommend for me entry level amateur? Maybe you are just starting into ham radio and you have no clue what possibilities are even out there. Let us talk about it in this article. ...
New 5W Dual band Ham Radio Retevis RA685
- Oct 26,2021
- Vivian
- 0 Comments
- Product Introduction
Retevis RA685 is EU version dual band ham radio. The transmit frequency is 144-146Mhz,430-440Mhz, and the receive frequency is 136-174Mhz,400-480Mhz; ...
The new channel display method on Ailunce HD1
- Oct 20,2021
- Vivian
- 2 Comments
- User Tutorial
How to set the HD1 Rx screen display mode? ...
How to import contacts csv of Retevis RT84?
- Sep 29,2021
- Yamy
- 0 Comments
- User Tutorial
Retevis RT84 is a dual band DMR ham radio and supports to import 120,000 contacts. But do you know how to import the contacts csv into the radio? ...
What do you think about 220Mhz frequency?
- Sep 29,2021
- Vivian
- 5 Comments
- Amateur Radio Topics
What do you think about 220Mhz? will you choose a 1.25M 220Mhz band HT radio? Please welcome to recommend below. ...