Blog
How to use the Rolling Code of Retevis RT73?
- Jul 06,2021
- Yamy
- 0 Comments
- User Tutorial
If the radio supports the rolling code, you just need to make one codeplug to program many radios. the blog will show how to use the Rolling Code of Retevis RT73. ...
What's OTAP Radio?
- Jun 30,2021
- Yamy
- 0 Comments
- Amateur Radio Topics
OTAP is short for Over-The-Air Programming. OTAP radio doesn't need to use the programming cable to connect the walkie-talkie with the terminal (computer or mobile phone), and remotely program the walkie-talkie through the network or base station. ...
What functions do you need for your desktop microphone
- Jun 30,2021
- Yamy
- 0 Comments
- Amateur Radio Topics
The desktop microphone is one of the commonly used devices in the Ham Room. However, there are many desktop microphones on the market, with various functions. The following are some features we sorted out. What features do you need? ...
Why do you need a desktop microphone for your walkie-talkie?
- Jun 30,2021
- Yamy
- 0 Comments
- Amateur Radio Topics
With the popularity of radio, many hams built their radio rooms. In addition to basic equipment such as radio and power supply, we found that they always like to purchase desktop microphones. Do you know why they have to buy a desktop microphone when owning a handheld microphone? ...
ACS of Amateur Radio
- Jun 29,2021
- Yamy
- 0 Comments
- Amateur Radio Topics
ACS is short for Adjacent Channel Selectivity. It is a measure of the receiver's ability to receive useful modulated signals and is an important parameter of radio receivers. ...
What's the Spring antenna
- Jun 29,2021
- Yamy
- 0 Comments
- Amateur Radio Topics
The spring antenna is also called the helical inductive antenna, which is a kind of helical antenna. It can radiate and receive radio waves. when transmitting, it can convert high-frequency current into electromagnetic waves; when receiving, it can convert electromagnetic waves into the high-frequency current. So it plays a very important role in radio communication. ...
What's PSK31?
- Jun 29,2021
- Yamy
- 0 Comments
- Amateur Radio Topics
PSK31 is the abbreviation of Phase Shift Keying 31.25 Hz. PSK31 is an excellent digital modulation mode and just needs extremely narrow bandwidth. its transmission rate is always maintained at 31.25 bits per second, so it is called PSK31. It is mainly developed by the SP9VPC and G3PLX. ...
What kind of earpieces do you want to use with your walkie-talkie?
- Jun 29,2021
- Yamy
- 0 Comments
- Amateur Radio Topics
Earpieces are very important in the daily use of walkie-talkies. They can not only protect the privacy of our QSO, but also make the reception effect better. According to different wearing ways, earpieces can be divided into in-ear, ear-hook earpieces, and headsets. ...
What is the Difference Between Simplex and Repeater Channels?
- Jun 29,2021
- Vivian
- 0 Comments
- User Tutorial
From the beginning when I learn the ham radio knowledge, There are two basic ways to using your radio. One is simplex, the other more popular way is using a repeater. I often get confused how to operate a radio connect to a repeater, the shift frequency downlink and uplink.Today, let us learn the difference between simplex and repeater. ...
What is the Difference Between GMRS and Ham Radio?
- Jun 29,2021
- Vivian
- 0 Comments
- User Tutorial
what is the difference between GMRS and ham radios? ...