What antenna is best for my location?

[pigman1965]

Hi, what antenna would you recommend for my location?

Thanks


http://www.tvfool.com/?option=com_wr...e2cbdfba10d22b

[rabbit73]

Welcome, pigman1965:

You have a problem location with the major networks in different directions and on different bands. You haven't told us what you hope to get, where the antenna will be mounted, how long the feed lines will be, and how many TVs.

So I will have to guess that the antenna will be outside, in the clear, with no trees or buildings in the signal path. You have entered 10 feet on your report which doesn't seem high enough, but I don't know what your location looks like.

There are several solutions, none of which is ideal.

Solution Number 1:

A MCM 30-2476 VHF antenna aimed at 212 degrees magnetic for WFXL FOX and WALB NBC/ABC.
http://www.rabbitears.info/market.ph...&callsign=walb

and an Antennas Direct DB4e aimed at 160 degrees magnetic for WSWG CBS. Combine the two antennas with a UVSJ.
http://www.solidsignal.com/pview.asp?p=uvsj

Solution Number 2:

Antennas Direct C2V with the UHF loops aimed at 160 degrees magnetic for WSWG CBS and the VHF dipole broadside (perpendicular) to 212 magnetic for WFXL and WALB. Add a Channel Master 7778 preamp.

If you must have PBS, it will get even more complicated, because then you will need three antennas with a custom combiner or an A/B switch OR an all-channel antenna and a rotator.

You might get WMUM PBS with solution Number 2, because the dipole is bi-directional for 212 and 28 degrees. And you might get WABW PBS with solution Number 1, even though the 30-2475 isn't designed to pick up real channel 6.

[rabbit73]

I did an FM signal report based on my estimate of your location, which puts you a little north of Parker Pecan. It shows a very strong WFFM-FM transmitter that will probably cause interference to your reception of WFXL and WALB; you will need a filter. It will probably wreck your chances for PBS with WABW.
http://www.fmfool.com/modeling/tmp/1...3/Radar-FM.png

Please do an FM signal report using your exact address here:
http://www.fmfool.com/index.php?opti...pper&Itemid=29

The FM reports don't link the same way as tvfool signal reports, so just show us the image of the FM report.

[pigman1965]

Hi, It will be installed on the roof on the mount where my directv was installed. It is about 25ft or more on the roof. The feed line is about 25ft to 50ft long. The main channels I want to get are Abc, Cbs, Fox & Nbc the other ones don't really matter.

Thanks.

[pigman1965]

Hi, Here is the image.

Radar-FM.png

[rabbit73]

Thanks for the FM report. I just realized I never posted the one I did. I added it to post #3 and here:
http://www.fmfool.com/modeling/tmp/1...3/Radar-FM.png

I got it pretty close; WFFM 0.4 mi at 154°. Either way, it's too strong to ignore.

WFFM on 105.7 MHz has a signal power of -3.3 dBm
WBJY on 89.3 MHz has a signal power of -16.1 dBm
The Antennas Direct FM filter has an attenuation of about 20 dB for WFFM and about 25 dB for WBJY.
https://www.antennasdirect.com/store...on_filter.html

sometimes two in series are required.

If you use solution Number 1, put the FM filter between the VHF antenna and the UVSJ.

If you use Solution Number 2, it should go between the dipole and the VHF Kit combiner if it is separate. Some VHF kits have an integrated combiner so the FM filter will need to go just before the 7778 input. If you use the 7778, try it without the FM filter first with the 7778 internal FM filter set to IN which is its default position.

[pigman1965]

I was hoping you said the cv2 because I just bought one haven't open it yet. I'll be trying solution 2. You are saying point the bow at 160 and the dipole point it at 212?

[rabbit73]

Yes, C2V not cv2. The C2 is a UHF antenna and the "V" dipole kit adds the ability to receive strong VHF-High signals on real channels 7 to 13. It is possible to mount the dipole so that it can be aimed in a different direction than the UHF "figure 8" loops.

https://www.antennasdirect.com/store...tenna-Kit.html

https://www.antennasdirect.com/cmss_..._201402062.pdf

video

https://www.youtube.com/watch?v=9pKj3NKGzZg

There are 3 versions of the VHF KIT UHF/VHF combiner (diplexer)
http://www.avsforum.com/forum/25-hdt...l#post39074442

I quote ADTech

Gen I = An external private-labeled Holland UVSJ attached to lower part of the vertical reflector support.
Gen II = The diplixer was integrated into the central hub of the loop element. Two F-connectors on the rear of the loop. Short-lived version.
Gen III= Diplexer integrated into the modular clip-on VHF accessory housing.

I'm not sure what is the best way to add the FM filter. Maybe ADTech, who works for Antennas Direct and gives good advice here, can guide you.

It is also possible to use a HLSJ (high and common ports) as an FM filter. It blocks all signals below TV channel 7, including the FM band.
http://www.solidsignal.com/pview.asp?p=zhlsj