Digital TV likes clear signal path

Dec 31, 2008 By Steve Alexander

Question: If I buy a new digital TV, can I just plug it in and use it, as I do the old TV now? My son insists that it has to be hooked to an antenna, but the old televisions worked fine without one.

Answer: Whether you'll need an antenna depends largely on the terrain and other buildings in your area. Digital TV signals can be a bit more difficult to receive than analog signals because they are more sensitive to barriers such as hills, trees and buildings.

To learn more about HDTV antennas (and avoid getting scammed by claims that you need a "special" antenna), see www.hdtvantennalabs.com/hdtv-antenna-guide.php, which offers tips such as: "There is no such thing as an HDTV antenna. Your antenna has no idea whether your signal is high definition or not."

Q: I cut out an article you wrote some time ago regarding free anti-spyware and firewall software but when I tried to download using the Web sites you listed, I was told the file couldn't be found. Are they still available and, if so, how do I access them? I'm a novice, but want to download this since the free McAfee software on my new Dell computer has expired.

A: For the free Spybot anti-spyware program, go to www.download.com, find Spybot Search & Destroy in the list of most popular downloads, and click on the link, which takes you to the Spybot download page.

For the free ZoneAlarm firewall, go to www.zonealarm.com/security/en-… spyware-software.htm, and choose the basic firewall at the far right. However, neither program will protect you against viruses the way your expired McAfee software did - which means you should get new anti-virus software right away. There's a comparison chart of 17 anti-virus programs at: anti-virus-software-review.topten reviews.com.

Q: I recently updated the latest version of Norton Antivirus on my Windows XP PC, but since then, my computer has been freezing. I often have to reboot several times to get it to work properly. Why is this happening?

A: I suspect your Windows XP computer lacks enough memory to handle Norton AntiVirus 2009. Symantec, makers of the software, says the PC "must meet minimum Windows Vista operating system requirements."

That means a minimum of a 1 gigahertz processor and 512 megabytes of RAM memory - and for optimal performance you need 1 gigabyte of RAM (the amount required for the widely used Windows Vista Home Premium).

___

© 2008, Star Tribune (Minneapolis)
Visit the Star Tribune Web edition on the World Wide Web at www.startribune.com
Distributed by McClatchy-Tribune Information Services.

Explore further: DOCOMO and Huawei confirm LTE network over unlicensed spectrum

add to favorites email to friend print save as pdf

Related Stories

Ka-band represents the future of space communications

May 07, 2014

Imagine you're in a restaurant and it's nearly empty. You can talk to your companions, low-volume, easy and relaxed. But then more patrons start arriving and it gets more and more crowded. The noise level ...

Moto X born of new attitudes at Motorola Mobility

Sep 26, 2013

Paul Pierce remembers the reaction his team of designers elicited from their engineering colleagues when they proposed a smartphone with a gently curved back that would nestle into a person's hand.

Mexico sees its first village cellphone network

Sep 16, 2013

The communications revolution that swept the globe missed the Zapotec village of Talea de Castro high in the mountains of southern Mexico, where making any sort of call meant trudging to a community telephone ...

Recommended for you

Bringing emergency communications together

Aug 21, 2014

A new University of Adelaide research project aims to improve emergency operations through integrated communications systems for police and the emergency services.

For top broadband policy, look no further than Canada

Aug 20, 2014

You might have seen communications minister Malcolm Turnbull raising the issue about Australian press not discussing policy problems and solutions from overseas, in a speech delivered at the Lowy Institute Media Awards last week: ...

Cities, states face off on municipal broadband

Aug 19, 2014

Wilson, N.C., determined nearly a decade ago that high-speed Internet access would be essential to the community's social and economic health in the 21st century, just as electricity, water and sewers were in the previous ...

New loss mechanism for global 4G roaming

Aug 19, 2014

A loss mechanism that has not been an issue in previous mobile handset antennas will become important for global 4G roaming, according to results of experiments carried out in Aalborg, Denmark.

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

hlahore
not rated yet Jan 02, 2009
Only partially true. Many HDTV will be on UHF, for which you will need to have a clear line of sight to the transmitter and a UHF antenna if you are more than about 7 miles away from it.

by the way - the link in the article does not work until you remove the comma or period at the end of the URL