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#22
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#23
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IIRC, Frasier Park is in L.A. County, or is only a few hundred yards outside thereof. Frazier Park (correct spelling) is in Kern County, about 2 miles north of the L.A. county line. Well, that's "only" 3520 yards ouside of L.A. county. Since the Tx site is many, many, many miles outside of L.A. county, Frasier (Frazier) Park might as well be inside L.A. County, for purposes of this discussion. Certainly, Gorman, which is the I-5 turnoff to Frasier (Frazier) Park is wholly within L.A. county ... the NW-most point, in fact. Too, too bad Levine couldn't accomplish with his 1050 station what he did with his 540 station. What a f**kin' "goniff". (Yiddish, for "thief"). |
#24
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WBRW wrote:
BTW, right in my town, there's a 5,000,000-watt UHF TV station, but that's the ERP due to antenna gain, not actual transmitter power. Which station is that? |
#25
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BTW, right in my town, there's a 5,000,000-watt UHF TV station, but that's the ERP due to antenna gain, not actual transmitter power. 5 MW UHFs are pretty common, really. Here's a real challenge: list the top ten (or top five) highest gain AM stations. That is, those with the highest maximum-to-RMS field ratio, regardless of power. The power ratio, hence the gain, is the square of the field ratio. Hint: start looking at stations with eight or more towers. Second hint: look for arrays with major axes of 180 or somewhat more degrees and with minor axes of 90 degrees, more or less (210, or so, degrees and 80, or so, degrees, respectively, are among the prime candidates). |
#26
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In article , inch (Peter
H.) wrote: Here's a real challenge: list the top ten (or top five) highest gain AM stations. That is, those with the highest maximum-to-RMS field ratio, regardless of power. The power ratio, hence the gain, is the square of the field ratio. Hint: start looking at stations with eight or more towers. Second hint: look for arrays with major axes of 180 or somewhat more degrees and with minor axes of 90 degrees, more or less (210, or so, degrees and 80, or so, degrees, respectively, are among the prime candidates). Are you going to post the answer later? I think I did part of this exercise once before, listing all the stations with 8 or more towers, and I seem to remember that the list was not all that long. I only checked the "field ratio" on a couple though, so don't have any idea which are the "winners". Regards, John Byrns Surf my web pages at, http://users.rcn.com/jbyrns/ |
#27
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Are you going to post the answer later? I think I did part of this exercise once before, listing all the stations with 8 or more towers, and I seem to remember that the list was not all that long. I only checked the "field ratio" on a couple though, so don't have any idea which are the "winners". 1190 in Dallas is the winner (6 by 2); 1070 in Houston is a close second (3 by 3). There are numerous 9- or 10-tower Canadians which are contendors. You've got to get beyond 180 degrees, major axis, in order to make the "aperture" small enough, then you just add additional instances of those tower pairs until you get the gain way high ... certainly higher than 12. Second challenge: name the top ten (or top five) stations with the most steel in the air. The winner is ... 1070 in Houston, again. |
#28
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Doug Smith W9WI wrote in message ...
Greg and Joan wrote: 1) Didn't PJB, 800 khz, Netherlands Antilles (Bonaire) run 500Kw? Do they still do so today? I used to be able to pick them up in Massachusetts Yes and no. (the night before my brother's wedding in Traverse City, Michigan PJB was BOMBING into my motel room. I mean, they were louder than the Chicago clears less than 200 miles away. Things must have been auroral that night.) My understanding is PJB's power plant (they had their own...) burned down. When they rebuilt they decided to settle for 100kw and a directional antenna favoring northern South America. (Venezuela & Colombia) Trans World Radio (PJB) still operates from Bonaire with 100kw and still on 800 khz MW. About 3 years ago (not in the late 80's as someone else mentioned), TWR decided for reasons of cost to replace the old faithful unit with a new solid state transmitter. Tubes for the old 500 kw MW unit got increasingly more expensive to rebuild when they failed, and the costs of fuel to run the deisel generators higher and higher. With a reassessment of the need to "boom" into its former coverage, TWR decided to focus on the Caribbean and northern parts of S. America only as we are able to serve many of the areas further south by program distribution to local Christian stations. We do get occasional reports from US-based MW DXers and are grateful for them, but don't consdier the US a target any longer. We're airing English (though on a reduced schedule), Spanish, Portuguese and a couple of smaller Indian languages. The PJB power plant was sold to the local electric company on Bonaire to help power the grid there. The fire mentioned above was not at TWR (PJB's) site, but rather at the R. Netherlands facility also on Bonaire. Trust this will help clear things up. Bill Damick Trans World Radio Headquarters Cary, NC www.twr.org |
#29
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"Bill Damick" wrote in message ... Doug Smith W9WI wrote in message ... Greg and Joan wrote: 1) Didn't PJB, 800 khz, Netherlands Antilles (Bonaire) run 500Kw? Do they still do so today? I used to be able to pick them up in Massachusetts Yes and no. (the night before my brother's wedding in Traverse City, Michigan PJB was BOMBING into my motel room. I mean, they were louder than the Chicago clears less than 200 miles away. Things must have been auroral that night.) My understanding is PJB's power plant (they had their own...) burned down. When they rebuilt they decided to settle for 100kw and a directional antenna favoring northern South America. (Venezuela & Colombia) Trans World Radio (PJB) still operates from Bonaire with 100kw and still on 800 khz MW. About 3 years ago (not in the late 80's as someone else mentioned), My impression, born out by field strength readings by the engineer at WKVM-810 in Puerto Rico, was that the station had ceased to run 500 kw,and was using the big rig at lower power since sometime around 1995 or 1996. TWR decided for reasons of cost to replace the old faithful unit with a new solid state transmitter. Tubes for the old 500 kw MW unit got increasingly more expensive to rebuild when they failed, and the costs of fuel to run the deisel generators higher and higher. With a reassessment of the need to "boom" into its former coverage, TWR decided to focus on the Caribbean and northern parts of S. America only as we are able to serve many of the areas further south by program distribution to local Christian stations. At least it happened finally, although too late for some of us. I owned an AM on 805 AM in Ecuador when TWR went on the air. It nearly destroyed the station untill I could change frequency. A friend's station in Bucaramanga, Colombia, was driven off the air by TWR's misguided religious zeal that caused it to stomp on the coverage and signals of over a dozen radio stations on 790, 800 and 810 in the NE South American zone. People here complain about arrogance as demonstrated by Clear Channel; TWR is the supreme example of arrogance for a "cause" with no thought for all the people injured due to their actions. |
#30
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In article , David Eduardo wrote:
At least it happened finally, although too late for some of us. I owned an AM on 805 AM in Ecuador when TWR went on the air. It nearly destroyed the 805??? I thought AM radio in Ecuador was on the 10khz band plan like the USA and Colombia. In the past few years, though I've noticed a number of drop-in FM stations on the "even" frequencies -- 95.4, 100.2, etc. That really has to cause hell with a lot of digitally tuned car radios that only tune in the odd frequencies. People here complain about arrogance as demonstrated by Clear Channel; TWR is the supreme example of arrogance for a "cause" with no thought for all Ahhhhh....but they're doing the work of GOD! That forgives everything, including the jamming of your heathen programming of your station and your friend's. Be glad this isn't the Middle Ages. They would have strung you up.... ;-) -- Sven Weil New York City, U.S.A. |
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