Parabolic OTA Antenna

[Lue]

Could this parabolic antenna be easily modified for UHF television use?

http://www.walmart.com/ip/16523450?...486607510&wl4=&wl5=pla&veh=sem#Specifications

Anybody using any parabolic antennas out there? They seem to be top of the line for serious reception, is this the case?

http://www.wade-antenna.com/Wade/uhfparabolic.pdf

 

[Bob2011]

The reflector is not sized for UHF so even if you were to put a UHF sized dipole in front of the reflector it would be no better than a common indoor antenna. To achieve the advertised level of gain on the UHF TV band the dish would need to be larger than 12 feet across.

 

[Lue]

These parabolics below get good gain at 4, 6 and 8 ft.. What am I not getting here as a newb to antennas?

http://www.wade-antenna.com/Wade/uhfparabolic.pdf

Thanks

 

[FaT Air]

Could this parabolic antenna be easily modified for UHF television use? http://www.walmart.com/ip/16523450?w...Specifications

Would think it's much too small to get much gain, or FB ratio, as it's intended use is at 2.4ghz. Television is quite a bit lower freq. Everything would have to be 4-5 or 6 times larger. So the answer would be: no.

What am I not getting here as a newb to antennas? http://www.wade-antenna.com/Wade/uhfparabolic.pdf

They are frikkin HUGE! And heavy as they are intended for commercial installations. Here's a CM model, for residential use, that used to be produced: [BTW, it's also HUGE] http://www.rocketroberts.com/cm4251/cm4251.htm

 

[Stargazer]

The higher the frequency, the smaller the antenna needs to be. The lower the frequency, the larger the antenna needs to be. 2.4 GHZ is a bit of a higher frequency than what television signals are on therefor would require a smaller antenna for the wi-fi setups. A whip antenna wouldn't pick up television stations too well unless you was close to the tv station.

 

[Lue]

Finco 400-A Bed Spring antenna.

http://www.rocketroberts.com/cm4251/cm4251.htm

Looks like a guy could paint this antenna green and place it against a hedge row and never be seen?


Anybody have any experience with one of these? article says same performance as the nice parabolic antenna.

Anybody out there getting uhf channels at 80 miles plus with an antenna not over 25 ft. high?

Do electrons react identical to photons off a mirrored surface as far as reflection and refraction goes?

 

[Lue]

Antenna Capture Area, this article seems to make good sense to me on a super fringe antenna.

You all agree with a very large reflecting area being the best way to get a stable signal in super fringe areas?

Will the actual antenna on a uhf parabolic dish always remain the same size no matter if its a 4 ft. reflector dish or a 40 ft. reflector dish? I am thinking only focal point would change. correct?

http://www.kvhf.com/

 

[MikeD-C05]

Looks like that thing would attract lightening like crazy.

 

[Jim5506]

The size of an antenna is very low on the list of things that make it liable for a lightening strike.

 

[sergei]

Anybody out there getting uhf channels at 80 miles plus with an antenna not over 25 ft. high?

If your talking about the 4251, I have one at 35 feet and I have no problems getting solid 24/7 programming at 90+ miles. Great antenna if you can find one.

 

[MikeD-C05]

The size of an antenna is very low on the list of things that make it liable for a lightening strike.

Okay I'll bite: What are the list of things that make an antenna highly liable for a lightening strike?

 

[Lue]

YES! now we are talking antennas. Any way you could post your TvFool profile? I have heard about people picking up stations on occasion from insane distances with the 4521, ever get suprised by your 4521?

Here is my tvfool profile. http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id=1dda0ffecdf4ef

See any problems with a 4521 at 25ft. receiving the KETV 20 station from Omaha?

Did you have to go to 35 ft.? Did you play with it at any lower heights?

Thanks for posting.

 

[sergei]

Okay I'll bite: What are the list of things that make an antenna highly liable for a lightening strike?

LIST: POOR GROUNDING

 

[sergei]

See any problems with a 4521 at 25ft. receiving the KETV 20 station from Omaha?

No easy answer on whether you'll get it as it mostly depends on your location and anything in the way of the signal.

Did you have to go to 35 ft.? Did you play with it at any lower heights?

My case I'm on the highest point in our county which helped . Could have gone higher with tower but for power lines and I was concerned it might reach them if I added another two sections, wind is an issue here.

My system is pictured on rocketroberts web site. This summer I'm replacing the lower antenna as it was damaged by straight line winds.

 

[No Static At All]

My case I'm on the highest point in our county which helped .

What is your elevation?

 

[sergei]

Altitude is 950 ft at ground level.

 

[No Static At All]

Altitude is 950 ft at ground level.

I'm jealous