Ive seen 434 MHz, 900 MHz, 2.4 GHz and 5.8GHz units- which frequency should I choose?
A2: First of all, there are several other considerations to make before frequency selection. All these frequencies are considered part of the radio frequency (or RF) spectrum. As far as 2.4 ghz (or 2,400 megahertz) signals in motion- it’s a little hard to explain. When both points are stationary, you’ll generally have a crystal clear signal (depending, of course- on interference and barriers). As one or both of the points are in motion, there can be an unusually large amount of signal breakup. Unlike “snow” received from lower frequency units, you get momentary pops inbetween clear signals. Higher frequency signals are more directional by nature. By using the two receivers (one with built in omnidirectional antenna & the other with a high gain directional antenna), some normal interference will be stabilized. Essentially, lower UHF frequencies like 434 and 900 megahertz are better for those applications where motion exists in one or both links (i.e. body worn or mobile applications). L
