[Repeater-Builder] Re: how far

[George]

the terrain is in new york city area. 
thank you for the consideration and the fast response!

--- In Repeater-Builder@yahoogroups.com, kevin valentino <kevinvalent...@...> 
wrote:
>
> OK there is a "cute" little program that actually comes fairly close to 
> calculating effective radio range based on height, power, line loss(has a 
> cable database), and frequency. Add the cavity losses in with the line loss. 
> Calculate the portable at 6 feet, unity gain, using worst case terrain type 
> scenario. I will send it to you.
> 
> --- On Sat, 4/24/10, George <gueorg...@...> wrote:
> 
> 
> From: George <gueorg...@...>
> Subject: [Repeater-Builder] Re: how far
> To: Repeater-Builder@yahoogroups.com
> Date: Saturday, April 24, 2010, 8:43 PM
> 
> 
>   
> 
> 
> 
> ok the antenna is from cell site 14dbm 4-element in a plastic housing, the 
> amplifier is 600 watts capable linear mosfet 8element hybrid splitters and 
> combiners... but the power supply is up to 65 ampers at 24 volts, driven by a 
> "C" class 130 watt amplifier. the antenna is not on a commercial tower (no 
> luck here). 20 feet above the house. the line is heliax andrew semi-rigid. 
> the repeater is in the attic and the line is 30feet. the duplexer is celwave 
> doesn't like more than 450 watts in.
> 
> --- In Repeater-Builder@ yahoogroups. com, kevin valentino <kevinvalentino@ 
> ...> wrote:
> >
> > Any approximation would depend on the repeater antenna height and the 
> > terrain of the area.
> > I would hate to see the price tag on an 800MHZ 450W amplifier :-)
> > I do mean literally "approximation. " Many factors come into play. 
> > Especially at high frequencies.
> > The length and type of the antenna feedline, gain of antenna used, etc.
> > --- On Sat, 4/24/10, George <gueorgui2@ ..> wrote:
> > 
> > 
> > From: George <gueorgui2@ ..>
> > Subject: [Repeater-Builder] how far
> > To: Repeater-Builder@ yahoogroups. com
> > Date: Saturday, April 24, 2010, 7:24 PM
> > 
> > 
> >   
> > 
> > 
> > 
> > what is the range of a 800mhz handheld 4watts with msf5000 repeater 
> > 450watts on the antena
> >
>