Thursday, November 19, 2009
eXRS? Anyone try it?
This is from their site:
eXRS (eXtreme Radio Service) is the new digital two-way radio service operating in the 900 MHz band [Jimmy: this means it can travel through building better than the HF waves but requires more line of sight]. eXRS goes beyond FRS and GMRS. eXRS uses frequency hopping to make it possible to have private and secure communications. eXRS puts an end to annoying interference from other users on the same channel. Because eXRS radios constantly hop from one frequency to another, your conversation cannot be overheard on a scanner or another radio. In addition, eXRS radios, unlike FRS/GMRS radios are license free and are legal for all users of all ages and for personal and business purposes.
eXRS TWO-WAY RADIO RANGE
EXCEEDS 100 MILES!
That’s a bold statement and true, but of little practical value to the user.
The truth about Radio Range on the planet Earth
The actual range of eXRS and all other UHF two-way radios including FRS and GMRS (walkie-talkies) is effectively the same, regardless of transmit power. The total range is greatly diminished by the effects of the atmosphere, trees, buildings, hills and all other environmental conditions in the area of use.
Portable UHF radios are effectively straight-line communications devices. It is the path that establishes usable range, not the transmit power.
Even the curvature of the Earth limits the straight-line path. The average curvature of the Earth dictates an average maximum range of 6 miles.
Beware of advertised range claims. Advertised range has grown over the last few years from a couple of miles to 30 miles and more in an effort to distinguish product pricing. All good quality portable UHF radios, regardless of range claims, will perform essentially the same under the same conditions. It is unlikely a user will normally experience a set of conditions conducive to long range operation, but under those conditions, radios with advertised range of 2 miles will perform equally as well as those advertising greater than 30 miles.
Realistically, under most conditions, typical range for all eXRS, FRS and GMRS radios will be a few thousand feet to several miles.
eXRS radios have been independently tested head to head with the top of the line GMRS/FRS radios and up to five Watt commercial radios and the results demonstrate that they are all range equivalent.
at 3:12 PM