Q: Regarding DTV: Would you please emphasize to people that a UHF antenna will not be sufficient to receive the major stations in the DFW area?...

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wfaa.com

Posted on August 15, 2009 at 4:51 PM

Updated Friday, Oct 16 at 11:18 AM

Q: Regarding DTV: Would you please emphasize to people that a UHF antenna will not be sufficient to receive the major stations in the DFW area? Problem: Most homes as far away from your broadcast antenna as Fort Worth will require a "medium range directional antenna" (from antennaweb.org). Many stores are selling antennas they say are DTV capable, but will only receive UHF. Currently, one major station's digital signal (WFAA) cannot be received on a UHF antenna. As of the "switch", another station will also be VHF only (Channel 11). I am a retired electrical engineer and have a business providing free consulting to friends and elderly neighbors for their electronics, computers, etc. I was in two attics today. I really hate seeing them ripped off. Thanks for listening

Ray

Edgecliff VillageA: Thank you, Ray - good to hear from a trained ear/eye. Actually we have spent a good deal of time providing information on antennas via news stories, web content and thousands of dollars in commercial announcements - you are correct in that a UHF antenna will not pick up all the stations in the market, and after the switch that intensifies. So many installers assume all the stations are UHF and install UHF only antennas. As we tell viewers all the time, there is no difference in price or availability between a VHF/UHF or a UHF only antenna - it's just a subtlety consumers (as well as installers) should be mindful of when getting set up for DTV. Here is info we send to viewers with questions (they tell us it's helpful). Let us know what you think?For now, WFAA-DT is the only VHF digital television signal in the Dallas-Fort Worth market. All others broadcast their digital signals on UHF at this time. Thus, you must have an antenna capable of receiving both VHF and UHF to receive all of the DTV stations. After the February 2009, we understand that KTVT (CBS) will also be moving to a VHF channel. So, it appears there will be stations broadcasting HDTV on both UHF and VHF signals. To adjust your antenna for the best reception of WFAA-DT we suggest that you connect your antenna to a standard definition set and tune to Channel 8. Adjust your antenna for the best signal on Channel 8 then re-connect it to your DTV receiver and re-scan the channels. You should then receive 8-1 and 8-2. If you are still having problems, consider a better antenna or a good quality RF amplifier to boost your signal. There are a number of manufacturers make good quality RF amplifiers available are a variety of area electronics stores. If you are experiencing interference, you may want check a few more things out. Have you checked with neighbors? Are they experiencing similar issues? You may have local interference causing the breakup. When the problem occurs check to see if any appliances in your home are turning on at the same time. Also check the connections on your antenna you may need to re-aim your antenna. Thanks again for the email, Ray.

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