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#1
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You would probably need to replace the twinlead as well as the antenna.
The next time you see a Radio shack, you might sneak inside and ask about TV antennas. Or they probably have a web site. with prices Yeah - they do - click on this link... http://www.radioshack.com/family/ind...2187.20 32189 HTH Hal w4pmj "Solomon_Man" wrote in message ... All, Some History... My home, previously owned by my parents, has approximately a 30' Tower I liked the range of the previous antenna, so what would everyone suggest for an antenna with a range of around 100-125 miles that could be mounted to a 30 foot tower and will be used for radio and TV reception I have made a few phone calls and everyone locally pushes the Channel Master but I am little nervous about having to have to do this every 7-10 years based on the last antenna. Has anyone had better experience with Channel Master? As its been used like three times, would you replace the rotor motor? What should I expect to pay to have a new antenna and rotor motor installed in my home? Anyone know a good antenna dealer in the Toledo, Ohio area? Thanks, Chris |
#2
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Hal Rosser wrote:
You would probably need to replace the twinlead as well as the antenna. The next time you see a Radio shack, you might sneak inside and ask about TV antennas. Or they probably have a web site. with prices Yeah - they do - click on this link... http://www.radioshack.com/family/ind...2187.20 32189 HTH Hal w4pmj "Solomon_Man" wrote in message ... All, Some History... My home, previously owned by my parents, has approximately a 30' Tower I liked the range of the previous antenna, so what would everyone suggest for an antenna with a range of around 100-125 miles that could be mounted to a 30 foot tower and will be used for radio and TV reception I have made a few phone calls and everyone locally pushes the Channel Master but I am little nervous about having to have to do this every 7-10 years based on the last antenna. Has anyone had better experience with Channel Master? As its been used like three times, would you replace the rotor motor? What should I expect to pay to have a new antenna and rotor motor installed in my home? Anyone know a good antenna dealer in the Toledo, Ohio area? Thanks, Chris ================================================== === Firstly ,it is my understanding that in the USA all terrestrial TV stations will go digital in 2009 , so it would be useful to know which are the frequencies/bands this service will be offered in your (Toledo) area ,before you buy any new antenna. Secondly ,most ,if not all TV sets nowadays have an antenna input socket for 75 Ohms coax. Since coax is less 'environment sensitive' than twin lead feeder , it does make sense to run coax to the antenna. If the antenna's active element is a folded dipole ,its connection box will include a (usually pig nose type) 4:1 balun. Frank GM0CSZ / KN6WH |
#3
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![]() "Highland Ham" wrote in message ... ================================================== === Firstly ,it is my understanding that in the USA all terrestrial TV stations will go digital in 2009 , so it would be useful to know which are the frequencies/bands this service will be offered in your (Toledo) area ,before you buy any new antenna. Secondly ,most ,if not all TV sets nowadays have an antenna input socket for 75 Ohms coax. Since coax is less 'environment sensitive' than twin lead feeder , it does make sense to run coax to the antenna. If the antenna's active element is a folded dipole ,its connection box will include a (usually pig nose type) 4:1 balun. Frank GM0CSZ / KN6WH Give twinlead a twist every couple of feet and you save the cost of that coax. At the freqs used, most coax could be rather lossy, depending on the length of the run, but twinlead has a very happy combination of being low-loss - and - low-cost compared to most coax. (And lighter weight too.) The 4-1 balun ( coax to twinlead adapter) is cheap enough. I've used twinlead and tv baluns for a 200-ft run to my antenna on 10 meters (5 watts) with good results both tx and rec. Ya just gotta match impedences and you're good to go. |
#4
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In article ,
Hal Rosser wrote: Give twinlead a twist every couple of feet and you save the cost of that coax. At the freqs used, most coax could be rather lossy, depending on the length of the run, but twinlead has a very happy combination of being low-loss - and - low-cost compared to most coax. When it's new, when it's clean, and when it's dry. As I understand it, one of the bigger downfalls of ordinary 300-ohm twinlead for TV reception is that its performance can deteriorate rather badly with age. Sunlight causes the PVC to deteriorate, and surface contamination and moisture (e.g. rain) can significantly increase the losses. Coax is much less vulnerable to these problems. -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
#5
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Dave Platt wrote:
As I understand it, one of the bigger downfalls of ordinary 300-ohm twinlead for TV reception is that its performance can deteriorate rather badly with age. Sunlight causes the PVC to deteriorate, and surface contamination and moisture (e.g. rain) can significantly increase the losses. It's also subject to problems if it is too close to things, remember those special standoff insulators for it? It can not be looped, wrapped around things, etc. Geoff. -- Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM |
#6
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On Jun 11, 3:19*am, (Geoffrey S. Mendelson) wrote:
Dave Platt wrote: As I understand it, one of the bigger downfalls of ordinary 300-ohm twinlead for TV reception is that its performance can deteriorate rather badly with age. *Sunlight causes the PVC to deteriorate, and surface contamination and moisture (e.g. rain) can significantly increase the losses. It's also subject to problems if it is too close to things, remember those special standoff insulators for it? It can not be looped, wrapped around things, etc. Geoff. -- Geoffrey S. Mendelson, Jerusalem, Israel *N3OWJ/4X1GM All, I think the antenna has a coax connection built into it (One of advertisements I saw). Also the previous wire was coax as is the rest of the house. So I think Coax is a given for me due to simplicity and never having any problems with it in the past. I will keep it in mind though if something would change on the antenna or plans. Thanks again, Chris |
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