Ham radio information
Ham news and other ham information
People in the use of wireless walkie-talkie often hear the background noise, squelch, refers to the radio in order to solve the call quality and noise problems, and design of the squelch circuit or squelch function. Squelch function has a different squelch level, according to the actual situation to adjust themselves. Noise characteristics Wireless walkie-talkie […]
Standing-wave ratio (SWR) is a mathematical expression of the non-uniformity of an electromagnetic field (EM field) on a transmission line such as coaxial cable. Usually, SWR is defined as the ratio of the maximum radio-frequency (RF) voltage to the minimum RF voltage along the line. This is also known as the voltage standing-wave ratio (VSWR).
Communications can be simply divided into a wired (including erecting cable, cable or leased telecommunications Line) and wireless (radio transmission into the establishment of a dedicated line) two big way. Compared to establish a dedicated wireless transmission have less investment than the other way, the opening and operation and maintenance quick and simple, the disadvantage
Non licensed radios are usually cheaper low cost radios and would normally be used for personal and light industrial use. For example, some license free radios are suitable for communication between friends and family at camp sites and ski resorts. Similarly, these radios might be suitable for light business use such as primary schools and
What is the difference between licensed and non licensed radios? Read More »
Digital radios offer greater coverage and clearer audio quality. It is now likely that where coverage wasn’t possible with analogue technology, it will now be achievable using digital technology. In addition, the audio quality will be much clearer with almost no background noise due to a noise cancelling function which enables audio to be crystal
What is the difference between digital two way radios and analogue two way radios? Read More »
Two-Way Radio – A two-way radio is a hand held device or transceiver can both transmit and receive voice communication. Broadcast Environment’s use receivers meaning one can receive voice but not transmit communications. Other terms for Two-Way radios include; walkie-talkies, hand held radio or handie-talkies. The three types of Two-Way radios are; hand-held, mobile, and stationary or base.
Amateur Radio In my opinion, the ultimate in radio communication is Amateur Radio, also known as Ham Radio. Ham isn’t an acronym,but an old-school term originally thought to have been derived from radio operators with poor or “ham-fisted” skills.It consists of a series of radio frequency bands designated internationally for public, non-commercial use. Various types
Today we gonna share some Radio Guide Books to you . They are all about Radio, Antenna and Public Service that recommended by miklor.com .
Radio Guide Books For people who wanna be a ham . Read More »
There are a lof of radios in the market have FM function. When we are free and there is no calling, we may open FM to listen. In case we miss any calling, most of the radios’ default settings is Automatic receiving the calling from other radios when we listen FM radio. Some people think
RT23 has a lot of functions, cross band repeater, dual receive,dual ptt,360 degree channel,one touch setting same CTCSS/DCS etc. Today i will intorduce how to realize dual ptt. Most of radios can’t setup two ptt. for example BH-F8HP. When you push ptt, the radio transmit main channel frequency. If you want to transmit sub channel
Retevis RT23: Setup a side key as sub ptt to realize dual ptt transmitting. Read More »
