|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
209.225.111.225
I'm about to set up an outdoor antenna (so far I'm targeting the AntennaCraft FM13...140" boom, 13 elements, 5 driven)and have two questions>If I mount the antenna on a tripod on top of a back building (antenna would be 20-25 feet up) and it's pointing at a transmitting tower some 90 miles away...and the second floor of my house is between the transmitting tower & the antenna (probably at least 100 feet between the antenna & house) am I looking at a problem(poor reception)?
>If I mount the antenna in the same location (building out back) and run a 150-175 foot cable to the house...what losses am I looking at due to the length of the cable run?
Follow Ups:
as noise is gonna be THE issue! 'DX-ing' is what you are doing!I would seriously think about the big 13element APS item if I were you, as the weight and wind drag issues will be no worse than the AC - FM13, mast and guys wise and performance will be noticeably better.
WarmestTimbo in Oz
The Skyptical Mensurer and Audio Scrounger'Still not saluting.'
Read about and view system at:
but one with adj. gain - set it to lowish gain, IE almost 'just a buffer' for best audible results - noise versus signal.for the antenna/s as high as possible is best, so a guyed and higher mast up there, would be better
aim the thing up a bit, too. just 10 to 15 degrees
OR
depending on the amps cost cf this - try stacking TWO antennas with the top one staggered back by a quarter wavelength. (I think ?), see the FM tuner group and TIC for ideas on these distances between and stagger depth! Use a low-loss combiner - transformer type!
And, in any case use VERY good cable, better than GOOD RG6, say RG11 or better, but with a solid-copper core (NOT plated steel) up to the house, and then rg6 to the wall plate/s.
#NOT cheap anyway you slice it!
WarmestTimbo in Oz
The Skyptical Mensurer and Audio Scrounger'Still not saluting.'
Read about and view system at:
Yeah, the building is going to affect reception/increase multipath. But it still might work for your purposes, depending on the distance of the stations you want to receive.You'll lose some signal at that length, though I can't tell you how much. Past 50' it starts to get noticeable. Get a preamp (the Channel Master units that are x777 models are some of the few that are low enough noise to be worth the effort). Any way you can mount the antenna on the house?
This post is made possible by the generous support of people like you and our sponsors: