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Separate VHF and UHF Antennas?

Ask for antenna advice here. Off air HDTV antennas performance discussion: indoor, outdoor, directional and omni-directional, VHF and UHF bands.

Separate VHF and UHF Antennas?

Postby RFNoob on Tue Apr 12, 2011 10:56 pm

Hello all,
I've found a lot of good info already on this forum, but had a few more questions for my specific setup. Based on my physical location,
(TVFool: http://www.tvfool.com/?option=com_wrapp ... d398a39e1a)
I receive all desired UHF transmissions from 119 degree compass bearing and all/both VHF transmissions from 298 degree compass bearing. It seems to me (no prev antenna experience) a decent setup would be:
* High-band VHF antenna (75 ohm)
* (Separate) UHF antenna (75 ohm)
* 1 5-foot (???) roof mounted mast for both antennas
* No preamp. Passive splitter on mast to interconnect both antennas
* RG6 wire for short (less than 50-foot) run to TV

Does this sound reasonable? Trying to keep cost low, so hoping to avoid multiple masts, preamp, rotor, etc...

Also, my current setup uses a simple unamplified indoor antenna (rabbit ears and loop combo) to an analog TV via a digital to analog converter/tuner. The signal strength for most of the UHF channels is great, but the VHF channel (Real 8 and 10) is marginal.

Thanks for the input

RFNoob
 
Posts: 3
Joined: Tue Apr 12, 2011 10:05 pm

Re: Separate VHF and UHF Antennas?

Postby ProjectSHO89 on Wed Apr 13, 2011 5:50 am

Sounds fine. Be prepared to add an FM filter if channels 8 & 10 still have problems with a "real" high-VHF antenna.

Combine the two antennas using a UVSJ and it should work fine.

Here's an example of how the connections are made: http://www.antennasdirect.com/cmss_file ... oint_2.pdf

ProjectSHO89
 
Posts: 133
Joined: Fri Apr 09, 2010 7:10 pm

Re: Separate VHF and UHF Antennas?

Postby RFNoob on Wed Apr 13, 2011 5:33 pm

ProjectSHO89 wrote:Sounds fine. Be prepared to add an FM filter if channels 8 & 10 still have problems with a "real" high-VHF antenna.

Combine the two antennas using a UVSJ and it should work fine.

Here's an example of how the connections are made: http://www.antennasdirect.com/cmss_file ... oint_2.pdf


Thank you, ProjectSHO89. I'll keep the FM filter in mind as I start piecing things together. Also, thanks for the link - good tips on for a new guy (me) on antenna and diplexer placement on the mast.

I know this is a common question, but any suggestions on antennas? VHF transmitters are about 13-15 miles away and UHF transmitters are about 7-10 miles (??) away. Am a kidding myself on paying $50-60 dollars for both antennas?

RFNoob
 
Posts: 3
Joined: Tue Apr 12, 2011 10:05 pm

Re: Separate VHF and UHF Antennas?

Postby ProjectSHO89 on Wed Apr 13, 2011 7:16 pm

http://www.solidsignal.com/pview.asp?mc ... 713-(Y5713)&c=TV%20Antennas&sku=716079000987
http://www.solidsignal.com/pview.asp?mc ... tenna-(DB2)&c=TV%20Antennas&sku=
http://www.solidsignal.com/pview.asp?mc ... enna-(UVSJ)&c=Signal%20Combiners&sku=

This should keep you close to your budget. Add a mast, a matching transformer, and a couple of pieces of RG6 cable and you should be set.

Face the Y5-713 towards La Jolla and the DB2 towards San Miguel.

Cheers!

ProjectSHO89
 
Posts: 133
Joined: Fri Apr 09, 2010 7:10 pm

Re: Separate VHF and UHF Antennas?

Postby RFNoob on Thu Apr 14, 2011 7:18 pm

ProjectSHO89. Thanks for the antenna and diplexer recommendations. They look perfect for my setup and budget. I think I'm all set to go.

Thanks again!

RFNoob
 
Posts: 3
Joined: Tue Apr 12, 2011 10:05 pm


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