|
Reliable & audible clear channel AM DX reception.
Hiya....
After a few good threads on MW DX'ing, there has been some great info on some of the AM broadcast "catches" that others have managed to get. There was also a few posts regarding what AM radios are good for hearing far away AM radio stations. As was pointed out in a previous post to a poster that has asked the question of "what AM radio to buy", most of the AM DX'ing that is being reported on is unreliable and usually too messy to listen to. This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? Mine from North NJ are (after sundown): 840 kHz WHAS Louisville, KY 1100 kHz WTAM Cleveland, OH 1110 kHz WBT Charlotte, NC I can hear many other of the 50KW AM stations from time time time, but those three above are almost always relable and listenable here in NJ. Especially, WBT. -- Respectfully, Michael Home Page: http://md_dxing.tripod.com/ Northern NJ R75 w/DSP, Kiwa agc/sync & audio mods G5RV & 200ft longwire w/ICE-180 MFJ-1048 preselector SoundBlstr Live PC card w/five piece Cambridge speakers & full software mixer/eq. |
Michael wrote: This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? Mine from North NJ are (after sundown): 840 kHz WHAS Louisville, KY 1100 kHz WTAM Cleveland, OH 1110 kHz WBT Charlotte, NC OK, using your criteria, here is my list. I'm in the SW corner of Michigan. Eliminating the Chicago stations, which I get boomingly (but they're only 80 miles away across the lake), and the Detroit stations (c. 140 miles), and leaving out the stations I can get consistently - but with only poor, choppy audio, leaves me with this list. It's interesting to note that while I can get everyone of the New York City 50k stations, all of them save the one on the list are very weak. These results are all after dark: WSM Nashville 650 CNIF Montreal, 690 (all French) WLW Cincinnati 700 WSB Atlanta 750 (always very strong) CIGM Sudbury, Ont. 790 WHAS Lousisville 840 CHML Hamilton, Ont. 900 WWL New Orleans 870 (always VERY strong - must use directional antenna) WGY 810 Schenectady 810 WCCO 830 Minneapolis WCBS 880 New York KDKA Pittsburgh 1020 WHO Des Moines 1040 KYW Philadelphia 1060 WTIC Hartford 1080 KMOX St. Louis 1120 WHAM Rochester, NY 880 WBT Charlotte 1110 WLAC Nashville 1510 WSAI Cinncinatti 1530 KYEL Waterloo, IA. 1540 Some of these would not be terribly pleasant lisening, (staticy) but all are consistenly steady, clear signals at night, ID is easy. As I said above, I left out about a dozen I can get well sometimes, barely at all others. Tony ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
"Tony Meloche" wrote in message ... OK, using your criteria, here is my list. I'm in the SW corner of Michigan. Eliminating the Chicago stations, which I get boomingly (but they're only 80 miles away across the lake), and the Detroit stations (c. 140 miles), and leaving out the stations I can get consistently - but with only poor, choppy audio, leaves me with this list. It's interesting to note that while I can get everyone of the New York City 50k stations, all of them save the one on the list are very weak. These results are all after dark: WSM Nashville 650 CNIF Montreal, 690 (all French) WLW Cincinnati 700 WSB Atlanta 750 (always very strong) CIGM Sudbury, Ont. 790 WHAS Lousisville 840 CHML Hamilton, Ont. 900 WWL New Orleans 870 (always VERY strong - must use directional antenna) WGY 810 Schenectady 810 WCCO 830 Minneapolis WCBS 880 New York KDKA Pittsburgh 1020 WHO Des Moines 1040 KYW Philadelphia 1060 WTIC Hartford 1080 KMOX St. Louis 1120 WHAM Rochester, NY 880 WBT Charlotte 1110 WLAC Nashville 1510 WSAI Cinncinatti 1530 KYEL Waterloo, IA. 1540 Some of these would not be terribly pleasant lisening, (staticy) but all are consistenly steady, clear signals at night, ID is easy. As I said above, I left out about a dozen I can get well sometimes, barely at all others. Tony Hi Tony, I can get more or less the same group, except for those which are adjacent to the Chicago clear channels. I can also get WBZ quite clearly and reliably. Do you have local interference on 1030? Frank Dresser |
Frank Dresser wrote: "Tony Meloche" wrote in message ... OK, using your criteria, here is my list. I'm in the SW corner of Michigan. Eliminating the Chicago stations, which I get boomingly (but they're only 80 miles away across the lake), and the Detroit stations (c. 140 miles), and leaving out the stations I can get consistently - but with only poor, choppy audio, leaves me with this list. It's interesting to note that while I can get everyone of the New York City 50k stations, all of them save the one on the list are very weak. These results are all after dark: WSM Nashville 650 CNIF Montreal, 690 (all French) WLW Cincinnati 700 WSB Atlanta 750 (always very strong) CIGM Sudbury, Ont. 790 WHAS Lousisville 840 CHML Hamilton, Ont. 900 WWL New Orleans 870 (always VERY strong - must use directional antenna) WGY 810 Schenectady 810 WCCO 830 Minneapolis WCBS 880 New York KDKA Pittsburgh 1020 WHO Des Moines 1040 KYW Philadelphia 1060 WTIC Hartford 1080 KMOX St. Louis 1120 WHAM Rochester, NY 880 WBT Charlotte 1110 WLAC Nashville 1510 WSAI Cinncinatti 1530 KYEL Waterloo, IA. 1540 Some of these would not be terribly pleasant lisening, (staticy) but all are consistenly steady, clear signals at night, ID is easy. As I said above, I left out about a dozen I can get well sometimes, barely at all others. Tony Hi Tony, I can get more or less the same group, except for those which are adjacent to the Chicago clear channels. I can also get WBZ quite clearly and reliably. Do you have local interference on 1030? Frank Dresser Hi Frank: Nope, the closest thing would be WCFL in Chicago, and that's far enough away with good selectivity on my radios to be no problem. I can *get* WBZ almost any night - but it's the exception that I get it clear and steady. This bugs me, because as a kid in Detroit (140 miles closer to WBZ) I could get it after dark as strong as a local station, and they always "broke" Beatles records before any of the Detroit stations :D My friends thought I was clarivoyant when I'd tell them what the next Beatles hit was going to be, and that's how it turned out. I recall the DJ being some guy who called himself "Juicy Brucie Bradley", and some campaign to have sandwiches renamed "shrewsburys". Thanks for the trip down memory lane! PS: IIRC, from the few times I've heard and ID'd it here, they have different programming today - but that's no suprise. Tony ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
"Tony Meloche" wrote in message ... Hi Frank: Nope, the closest thing would be WCFL in Chicago, and that's far enough away with good selectivity on my radios to be no problem. I can *get* WBZ almost any night - but it's the exception that I get it clear and steady. This bugs me, because as a kid in Detroit (140 miles closer to WBZ) I could get it after dark as strong as a local station, and they always "broke" Beatles records before any of the Detroit stations :D My friends thought I was clarivoyant when I'd tell them what the next Beatles hit was going to be, and that's how it turned out. I recall the DJ being some guy who called himself "Juicy Brucie Bradley", and some campaign to have sandwiches renamed "shrewsburys". Thanks for the trip down memory lane! PS: IIRC, from the few times I've heard and ID'd it here, they have different programming today - but that's no suprise. Tony WBZ comes in very well almost every night here in the Chicago area. Even on my old Walkman. They're a talker now, and one of the few that has a local show at night. Frank Dresser |
Michael wrote:
This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? NYC: 660 WFAN, 880 WCBS Chicago: 670 WSCR, 720 WGN, 780 WBBM, 890 WLS, 1000 WMVP Atlanta: 750 WSB Detroit: 760 WJR Fort Worth: 820 WBAP New Orleans: 870 WWL Pittsburgh: 1020 KDKA Des Moines: 1040 WHO Cleveland: 1100 WTAM Shreveport: 1130 KWKH Richmond: 1140 WRVA Rochester: 1180 WHAM San Antonio: 1200 WOAI The following I can also get (weakly) during the *day* he Cincinnati: 700 WLW, 1530 WSAI Louisville: 840 WHAS (though Louisville is only about 150 miles) St. Louis: 1120 KMOX - and of course: - Nashville: 650 WSM, 1510 WLAC I can hear many other of the 50KW AM stations from time time time, but those three above are almost always relable and listenable here in NJ. Likewise for this list - there are many other stations (WBZ, WPHT, and KYW come to mind) that are usually audible here but also frequently disappear under bad conditions. And others (like 1260 WSDZ and 570 WWNC) that are almost always present and identifiable, but nobody would dream of listening to a program on the interference-laden signal. -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
Michael wrote:
Hiya.... This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? Also take into account that many stations use directional antennas. Given that scenario you may be able to hear the 5kw guy but not the 50kw from the same city depending on whether or not the lobe favors your direction. Most of the old (what used to be actually clear) clear-channel stations are omni-directional. -Bill |
Most of the old (what used to be actually clear) clear-channel stations
are omni-directional. A while back, I looked up one in Dallas and it has a humongous array for daytime and an entirely different almost-as-large array at night. The pattern must look strange on each, and each are sort of directional. I think I'll go back and try to find in my files the call sign of that station and then recheck on it. Bill, K5BY |
Tony Meloche wrote:
Michael wrote: This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? Mine from North NJ are (after sundown): 840 kHz WHAS Louisville, KY 1100 kHz WTAM Cleveland, OH 1110 kHz WBT Charlotte, NC OK, using your criteria, here is my list. I'm in the SW corner of Michigan. Eliminating the Chicago stations, which I get boomingly (but they're only 80 miles away across the lake), and the Detroit stations (c. 140 miles), and leaving out the stations I can get consistently - but with only poor, choppy audio, leaves me with this list. It's interesting to note that while I can get everyone of the New York City 50k stations, all of them save the one on the list are very weak. These results are all after dark: WSM Nashville 650 CNIF Montreal, 690 (all French) WLW Cincinnati 700 WSB Atlanta 750 (always very strong) CIGM Sudbury, Ont. 790 WHAS Lousisville 840 CHML Hamilton, Ont. 900 WWL New Orleans 870 (always VERY strong - must use directional antenna) WGY 810 Schenectady 810 WCCO 830 Minneapolis WCBS 880 New York KDKA Pittsburgh 1020 WHO Des Moines 1040 KYW Philadelphia 1060 WTIC Hartford 1080 KMOX St. Louis 1120 WHAM Rochester, NY 880 WBT Charlotte 1110 WLAC Nashville 1510 WSAI Cinncinatti 1530 KYEL Waterloo, IA. 1540 Some of these would not be terribly pleasant lisening, (staticy) but all are consistenly steady, clear signals at night, ID is easy. As I said above, I left out about a dozen I can get well sometimes, barely at all others. Tony WHAM Rochester, NY is 1180 (not 880) -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
starman wrote: Tony Meloche wrote: Michael wrote: This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? Mine from North NJ are (after sundown): 840 kHz WHAS Louisville, KY 1100 kHz WTAM Cleveland, OH 1110 kHz WBT Charlotte, NC OK, using your criteria, here is my list. I'm in the SW corner of Michigan. Eliminating the Chicago stations, which I get boomingly (but they're only 80 miles away across the lake), and the Detroit stations (c. 140 miles), and leaving out the stations I can get consistently - but with only poor, choppy audio, leaves me with this list. It's interesting to note that while I can get everyone of the New York City 50k stations, all of them save the one on the list are very weak. These results are all after dark: WSM Nashville 650 CNIF Montreal, 690 (all French) WLW Cincinnati 700 WSB Atlanta 750 (always very strong) CIGM Sudbury, Ont. 790 WHAS Lousisville 840 CHML Hamilton, Ont. 900 WWL New Orleans 870 (always VERY strong - must use directional antenna) WGY 810 Schenectady 810 WCCO 830 Minneapolis WCBS 880 New York KDKA Pittsburgh 1020 WHO Des Moines 1040 KYW Philadelphia 1060 WTIC Hartford 1080 KMOX St. Louis 1120 WHAM Rochester, NY 880 WBT Charlotte 1110 WLAC Nashville 1510 WSAI Cinncinatti 1530 KYEL Waterloo, IA. 1540 Some of these would not be terribly pleasant lisening, (staticy) but all are consistenly steady, clear signals at night, ID is easy. As I said above, I left out about a dozen I can get well sometimes, barely at all others. Tony WHAM Rochester, NY is 1180 (not 880) Sure is - I wrote WHAM but looked at WCBS - damned astigmatism . . . Tony -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- ----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeed.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
|
Michael wrote:
This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? As a native Minnesotan, one thing that I've always found disappointing is that WCCO (830 kHz) doesn't seem to get out as well as other clear channel stations. Last week, I was road tripping, and as we rolled into Escanaba, MI, I found I was able to get KYW, KDKA, WBZ, WHAS, and others without trouble, but nothing on 830. I'm wondering... do others find that WCCO is a more difficult catch than other clear channels? (P.S. I should probably mention that back in 1986, I was able to listen to WCCO's Gopher football broadcast on a walkman in the Liberty Bowl stadium in Memphis, TN, while watching the Gophers play that game live. So it would seem that "CCO's signal got out better in the past.) |
Mark Keith wrote:
(WShoots1) wrote in message ... Most of the old (what used to be actually clear) clear-channel stations are omni-directional. A while back, I looked up one in Dallas and it has a humongous array for daytime and an entirely different almost-as-large array at night. The pattern must look strange on each, and each are sort of directional. I think I'll go back and try to find in my files the call sign of that station and then recheck on it. Bill, K5BY Maybe WBAP-820? They had always been one of the bigger clear channels out of Dallas. MK No, WBAP is non-directional. My guess is he was looking at KFXR-1190. (long known as KLIF) IIRC they use *twelve* towers at night - they have fewer towers for daytime, at a different location. -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
I listen to KGO 810 every night, about 350 miles from North LA County.
Also KKOH 780, Reno, occasionally. Can get tons of stations but don't regularly listen. The West is the best. On Sun, 19 Oct 2003 16:35:23 GMT, "Michael" wrote: Hiya.... After a few good threads on MW DX'ing, there has been some great info on some of the AM broadcast "catches" that others have managed to get. There was also a few posts regarding what AM radios are good for hearing far away AM radio stations. As was pointed out in a previous post to a poster that has asked the question of "what AM radio to buy", most of the AM DX'ing that is being reported on is unreliable and usually too messy to listen to. This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? Mine from North NJ are (after sundown): 840 kHz WHAS Louisville, KY 1100 kHz WTAM Cleveland, OH 1110 kHz WBT Charlotte, NC I can hear many other of the 50KW AM stations from time time time, but those three above are almost always relable and listenable here in NJ. Especially, WBT. |
Maybe WBAP-820? They had always been one of the bigger clear channels out of
Dallas. Thanks, Mark. I'll check that out asap. I wrote it down, to remind me to check for that Dallas station I have in mind. It and WBAP may be the same. Bill, K5BY |
MD,
Back in the early 1960s I managed to receive "WBZ" in Boston using a Hitachi TH-812 (TRF AM/MW Portable Radio) with an outboard 'inductively coupled' Tunable Ferrite Rod Antenna Feed by a 65 Foot Random Wire Antenna. GoTo= http://www.transistor.org/collection.../hitachi9.html NOTE: This took me two winter seasons to log this DX catch. OBTW: If you are interested in Old Transister Radios check out this website: GoTo= http://www.transistor.org/collection/collection.html ~ RHF .. .. = = = "Michael" = = = wrote in message .net... Hiya.... After a few good threads on MW DX'ing, there has been some great info on some of the AM broadcast "catches" that others have managed to get. There was also a few posts regarding what AM radios are good for hearing far away AM radio stations. As was pointed out in a previous post to a poster that has asked the question of "what AM radio to buy", most of the AM DX'ing that is being reported on is unreliable and usually too messy to listen to. This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? Mine from North NJ are (after sundown): 840 kHz WHAS Louisville, KY 1100 kHz WTAM Cleveland, OH 1110 kHz WBT Charlotte, NC I can hear many other of the 50KW AM stations from time time time, but those three above are almost always relable and listenable here in NJ. Especially, WBT. -- Respectfully, Michael Home Page: http://md_dxing.tripod.com/ Northern NJ R75 w/DSP, Kiwa agc/sync & audio mods G5RV & 200ft longwire w/ICE-180 MFJ-1048 preselector SoundBlstr Live PC card w/five piece Cambridge speakers & full software mixer/eq. |
Tony Calguire wrote:
Michael wrote: This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? As a native Minnesotan, one thing that I've always found disappointing is that WCCO (830 kHz) doesn't seem to get out as well as other clear channel stations. Last week, I was road tripping, and as we rolled into Escanaba, MI, I found I was able to get KYW, KDKA, WBZ, WHAS, and others without trouble, but nothing on 830. I'm wondering... do others find that WCCO is a more difficult catch than other clear channels? I have the same problem with receiving WHAM-1180 Rochester, NY in the daytime. I can get all the NYC and Boston 50-KW stations in the day but not WHAM, which is about the same distance from me as NYC. I think it may have something to do with their transmitter location and ground (soil) conditions. Also the Hudson river valley may enhance daytime MW propagation to my area from NYC. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
WOW!!! That WBAP 820 in Dallas must be one of the original stations in the U.S.
Its 50kw anytime is on a single stick with no augmentation. And the size of that tower... 192.10 degrees! That's over a half wavelength (180 degrees) tall. The angle of radiation should be lower than that of most stations. It'd be a good station for newbie MW DXers to look for at night I checked on my Houston area anytime 50kw, KTRH 740, and it's puny in comparison. It uses a cluster of 4 antenna towers with augmentation, to take a nip here and a tuck there, to protect other stations. At night, the pattern is changed, for the same reason. The towers are only 75 degrees tall, less than a quarter wavelength (90). I found the Dallas station I was thinking of. It's KFXR 1190. 50kw day, 5kw night. During the day, it uses 4 towers inline, with 13 augmentations (ground radials, I presume). At night, it uses 12 towers(!), different from the day towers and aligned in a different direction. And it uses a whopping 28 augmentations!!! The day towers are 96d tall, the night towers are 87.2d tall. They must have a good income at night to go to all that trouble for 5kw. For those who don't know about it, MW AM station info can be found at: http://www.fcc.gov/mb/audio/amq.html Type in the state and call letters, when looking for a specific station, and then scroll down and request the detailed report. The site gives a number of options that can be used for searching the FCC data base. Bill, K5BY |
starman wrote:
I have the same problem with receiving WHAM-1180 Rochester, NY in the daytime. I can get all the NYC and Boston 50-KW stations in the day but not WHAM, which is about the same distance from me as NYC. I think it may have something to do with their transmitter location and ground (soil) conditions. Also the Hudson river valley may enhance daytime MW propagation to my area from NYC. WHAM's relatively high dial position doesn't help. A given amount of power covers better at the bottom of the dial (daytime) than it does at the top - by an amazing amount. -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
Doug Smith W9WI wrote:
starman wrote: I have the same problem with receiving WHAM-1180 Rochester, NY in the daytime. I can get all the NYC and Boston 50-KW stations in the day but not WHAM, which is about the same distance from me as NYC. I think it may have something to do with their transmitter location and ground (soil) conditions. Also the Hudson river valley may enhance daytime MW propagation to my area from NYC. WHAM's relatively high dial position doesn't help. A given amount of power covers better at the bottom of the dial (daytime) than it does at the top - by an amazing amount. True but I can get 1130-NYC and 1030-Boston with relatively strong daytime signals. My antenna is not long enough to be directional for MW. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
starman wrote:
True but I can get 1130-NYC and 1030-Boston with relatively strong daytime signals. My antenna is not long enough to be directional for MW. Interesting. Your antenna probably *is* directional for MW, just not predictably so... -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
Doug Smith W9WI wrote:
starman wrote: True but I can get 1130-NYC and 1030-Boston with relatively strong daytime signals. My antenna is not long enough to be directional for MW. Interesting. Your antenna probably *is* directional for MW, just not predictably so... -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com Every small antenna has the same pattern, a donut with a single axis of opposite nulls, for its electrical response and for its magnetic response. So if it's chiefly electrical or chiefly magnetic, it's a donut. You get deep nulls mostly by constructing small antennas so they are entirely magnetic or entirely electrical. Otherwise the out-of-phase electrical and magnetic responses fill in each other's nulls. Or you can phase-shift the electrical response and get a unidirectional combination electrical/magnetic antenna, eg. a loop plus a co-located whip combined with a phase shift. -- Ron Hardin On the internet, nobody knows you're a jerk. |
Ron Hardin wrote:
Doug Smith W9WI wrote: starman wrote: True but I can get 1130-NYC and 1030-Boston with relatively strong daytime signals. My antenna is not long enough to be directional for MW. Interesting. Your antenna probably *is* directional for MW, just not predictably so... -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com Every small antenna has the same pattern, a donut with a single axis of opposite nulls, for its electrical response and for its magnetic response. So if it's chiefly electrical or chiefly magnetic, it's a donut. You get deep nulls mostly by constructing small antennas so they are entirely magnetic or entirely electrical. Otherwise the out-of-phase electrical and magnetic responses fill in each other's nulls. Or you can phase-shift the electrical response and get a unidirectional combination electrical/magnetic antenna, eg. a loop plus a co-located whip combined with a phase shift. The explanation I favor is the WHAM groundwave signal is weaker than the other stations I mentioned in this thread because of unfavorable soil conditions and/or a deteriorated ground radial system at the antenna site. I think those are the most likely causes of reduced daytime coverage. It would be interesting to know what their (WHAM) daytime coverage was a few decades ago, to determine if it has deteriorated over the years. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
Michael,
Printed in a Table on the middle of this webpage you can find the 'official' "Clear Channel" List by the FCC. AM Station Classes: Clear, Regional, and Local Channels GoTo= http://www.fcc.gov/mb/audio/amclasses.html * Class A Station: A Class A station is an unlimited time station (that is, it can broadcast 24 hours per day) that operates on a clear channel. The operating power shall not be less than 10 kilowatts (kW) or more than 50 kW. ~ RHF .. .. = = = "Michael" = = = wrote in message .net... Hiya.... After a few good threads on MW DX'ing, there has been some great info on some of the AM broadcast "catches" that others have managed to get. There was also a few posts regarding what AM radios are good for hearing far away AM radio stations. As was pointed out in a previous post to a poster that has asked the question of "what AM radio to buy", most of the AM DX'ing that is being reported on is unreliable and usually too messy to listen to. This leaves me with yet another AM broadcast question. I'm interested to find out what 50KW AM broadcast stations http://www.ac6v.com/clearam.htm#USA (not in your state, or at least 200 miles away) are in fact reliable and listenable to you ??? Mine from North NJ are (after sundown): 840 kHz WHAS Louisville, KY 1100 kHz WTAM Cleveland, OH 1110 kHz WBT Charlotte, NC I can hear many other of the 50KW AM stations from time time time, but those three above are almost always relable and listenable here in NJ. Especially, WBT. -- Respectfully, Michael Home Page: http://md_dxing.tripod.com/ Northern NJ R75 w/DSP, Kiwa agc/sync & audio mods G5RV & 200ft longwire w/ICE-180 MFJ-1048 preselector SoundBlstr Live PC card w/five piece Cambridge speakers & full software mixer/eq. |
| All times are GMT +1. The time now is 11:39 AM. |
Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
RadioBanter.com