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Improving Two-way Radio Transmission Range

Improving Two-way Radio Transmission Range


1. System Parameters


1> Higher output power supports wider TX signal coverage and transmission range. As a result, higher power gets battery drained quickly, and sometimes with interference. That’s why we need the regulations for radio communication.

2> A high quality receiver is very important to the overall capabilities of any radio range extender.

3> A good radio antenna will enable the performance of the whole radio communications station to be maximized, whereas a poor antenna will degrade the capabilities of the transmitter and receiver regardless of how good they are. Usually, the higher your radio antenna the less likely it is going to encounter interruptions as it travels from one radio to another. Extending and improving your antenna is often the easiest way to improve radio range. The handheld radio antenna (mostly fixed) is helical antenna and liable to human body.

4> Battery. A low battery certainly affects the conversation quality, sometimes weakening noise filtering.


2. Add a Repeater to Extend Radio Range


If changing or adjusting the antenna doesn’t do the trick, it’s probably time to install one or multiple repeaters to grab the signal and retransmit it over a wider area. Repeaters work by transmitting SLR 5700 and receiving on two separate (but nearly identical) frequencies: one that receives a signal and the other that outputs the signal. This is called duplexing. When you set up a repeater system, you must configure your handheld or mobile radios to transmit on the repeater’s output frequency and enable the radio’s offset mode.

Many enterprises use repeaters, including:

High-rise buildings

Manufacturing facilities and distribution centers

Commercial and school campuses

Hospital complexes

Stadiums and arenas

Any facility that is large enough to require added radio range coverage


3. Environmental Affect


Two-way radio signals travel in a straight line meaning mountains, buildings, trees or even a group of people can get in the way of transmission signals. Things such as vehicles, weather,  electromagnetic interference in some way or almost anything that could interfere with line of sight.


4. Tone Quality


In a technical way, tone quality depends on pre-emphasis and de-emphasis circuits. There are now some advanced sound processing circuits that make a difference in producing original sound.