It sounds like you have a "linear" amplifier. Linear amplifiers are used when multiple low power transmitters are to be amplified by one amplifier. The peak power (actually peak envelope power) capability of the amplifier must be quite high in order to handle the multiple signals without generating intermodultion distortion.
The peak envelope power increases by the square of the number of signals going into the amp. N^2 * power Example: two 5 watt signals into the amplifier have a peak envelope power of 20 watts. Three have a PEP of 45 watts. Ten 5 watt signals works out to a PEP of 500 watts. (10^2 = 100*5 watts = 500 watts pep) So if you have ten 5 watt transmitters fed into the amplifier the amplifier must be capable of 500 watts PEP. 73 Gary K4FMX > -----Original Message----- > From: Repeater-Builder@yahoogroups.com [mailto:Repeater- > buil...@yahoogroups.com] On Behalf Of George > Sent: Sunday, April 25, 2010 4:08 PM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] Re: how far > > > well this amplifier is rated 90 watts you can see it on e-bay just type > powerwave in the search. it has error eliminating computer inside and no > distortion what so ever. i have it "modified" and use it at 450 watts > and i pushed it with two power supplys that can put more than 120 ampers > at 24 volts. the antenna is rated at 500 watts... > i wonder why woud they do that...just to put out 5 watts? > > > --- In Repeater-Builder@yahoogroups.com, Joe <k1ike_m...@...> wrote: > > > > The typical cell site is probably running a 10 watt amplifier with an > > ERP of about 100 watts. City sites probably a lot less power. Your > in > > the high power paging transmitter class. Physical damage can be done > in > > the nearby horizontal field of the antenna using this much power and > > antenna gain. > > > > Joe > > > > On 4/25/2010 3:13 PM, George wrote: > > > what do you mean...a cell site in the city radiates much more times > than my antenna, its on the same level and shoots directly in peoples > houses... > > > > > > > > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > >
