Re: [IRCA] Measuring "AC resistance" of ground rods to earth
At 16:00 18/07/2007, you wrote: >Nick: > >I have a folder of grounding info which will have some test results. >I'll figure out a way to get it to you. > >In the meantime you might want to google for "Rudy Severns >grounding". He's N6LF if I recall correctly. Some of his test >results appeared in QEX and also were presented at Dayton a few years ago. Thanks, Chuck; I too probably have an article already in my pile that has this information, if only I would put aside the time to search. We'll figure out a way for me to get access to that folder off list. N6LF's material is very interesting, and in fact I think I gave a link in one of his articles earlier in this thread. Reminds me I should get the ARRL CD of last year's QEX, because he had an article late in the year. best wishes, Nick Nick Hall-Patch Victoria, B.C. Canada ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] SPOOKY AM & FM EXPERIMENTS LICENSED IN OK, NM
The FCC has licensed some more experimental operations on the MW broadcast band. Digging deep into FCC info, I find Psyop mentioned in connexion with this, altho the licensee is the Multi-Spectral Laboratory in Ponca City of Oklahoma State University whose main field seems to be sensing. This is part of a 27 megadollar Navy contract, on behalf of the US Special Operations Command, Charleston SC. The authorization expires July 1, 2009. The consultant making the filings is Dr. Wayne G. Walker, who also happens to be CEO of Republic Aerospace Corp., Duncan OK. There are two locations: Chilocco, Oklahoma, which is right at the Kansas border north of Ponca City, on an abandoned water tower at an Indian school; and Flying H, New Mexico, which is in the back country SW of Roswell. Both mobile (suspect aeronautical) and fixed are authorized. The same callsign applies to both locations, WE2XFZ. Like last year`s tone tests from Virginia on 1610, 1020 and 590 kHz, each of these has three frequencies at the bottom, middle and top of the band, and ditto FM: Chilocco, OK: 540, 830, 1680 kHz, 92.3, 99.1, 107.5 MHz Flying H, NM: 530, 950, 1680 kHz, 88.3, 97.7, 107.3 MHz They are using a 2.5 and a 10 kW AM transmitter and 1 kW on FM, 5 kW ERP. They also mistakenly give ERPs for the MW frequencies. Tests will consist of 1 kHz tones or audio for 5-10 minutes. The equipment is capable of transmitting the callsign. A later filing is for shortwave frequencies too, with 1 kW on USB, LSB, AME, also from the same two locations, but different callsign, WE2XEV, on 4015, 4085, 12115, 12185, 22015, 22085, 26115, 26185. NTIA has accepted these, but two more frequencies have not yet been accepted, 12415 and 12485. Much more detail from my research into this appears in DX Listening Digests 7-082 and 7-084, under OKLAHOMA [and non]: http://www.w4uvh.net/dxld7082.txt http://www.w4uvh.net/dxld7084.txt Of course, any successful monitoring of this will be of great interest. 73, Glenn Hauser, Enid, July 18, 2007 Ready for the edge of your seat? Check out tonight's top picks on Yahoo! TV. http://tv.yahoo.com/ ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] Power Levels
At 01:50 PM 7/18/2007 -0700, you wrote: >Hi everyone, > >One question I have always wondered, why are there such odd low powers >for stations today. Paul mentioned that KATQ-1070 got 49.5 watts for >night operation. Ok, why not a round fiqure of 50 watts? What difference >does 1/2 watt make? Why not round the powers off to the nearest 10 at >least. Any idea? >Also isn't the rule of thumb, you have to stay withing 10% of your >operating power at all times? At least I think that was true 40 years >ago. >Thanks. > >73, > >Patrick Patrick, I downloaded the whole Part 73 (AM broadcasting R&Rs) and Part 15 from US Government Printing Office, and there's a reference in there. Remind me and I'll look it up. Charles Charles A Taylor, WD4INP Greenville, North Carolina ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] Measuring D-C resistance of ground rods to earth
At 18:06 18/07/2007, you wrote: >Nick, > >Isn't the tx site for CBK still in Watrous? >I know it used to be there. That 50 KW ND on 540 must cover most of >Central Canada 24/7 hands down. So far as I know, Patrick, though sometimes, I don't know much! As far as coverage, years ago, Don Moman and I certainly used 540 as a test frequency daytimes in the Alberta foothills, to try to adjust Beverage terminations. best wishes, Nick Nick Hall-Patch Victoria, B.C. Canada ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] Metallic return
At 15:40 18/07/2007, you wrote: >To obviate the necessity of good grounds for a EWE, I was thinking >along the lines of a metallic return: simply a buried wire, with >either the terminated end or the feedpoint left ungrounded. > >Do you think this would make the termination more predictable? Sounds like you're describing Bruce Conti's superloop, Charles. http://members.aol.com/amhits/termloop.htm His contact information is on his website, http://members.aol.com/baconti/bamlog.htm, if you don't know him already. >I converted my 22-metre longwire into a EWE with 4.6-metre >"legs." The difference was amazing. > >It is an excellent antenna, and happens to be situated in a >low-RFI portion of our property. > >Steve Ratzlaff suggests I raise the height of the legs. I >can get 1.65-metre steel mast sections for fairly cheap. others have more experience with EWE's than I do, but I believe that signals get stronger as the vertical sections are enlarged, but nulls may not be as good on some frequencies. Koontz' original article found that signal strength on 160m increased with horizontal length, but that front to back ratio deteriorated after a ratio of horizontal to vertical of 4 to 1, at least in modeling. If you don't think you're getting enough signal, beef up those verticals for sure... Nick Nick Hall-Patch Victoria, B.C. Canada ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] KPOJ 620 & KFXX 1080 = 1700
Notice a strange happening while driving in the area of the KEX-KPOJ antennas. KPOJ 620 & KFXX 1080 are heard on 1700 kHz, both about equal strengths. Driving South past the towers these two station can be heard together for about 2 miles before they fade out. Driving North they are heard midway on HW 205 bridge that spans the Columbia river. That's about 18 miles. Dennis, Vancouver, WA ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] KOH-780 Reno, NV Update
Thx Art, From: http://www.wabcradio.com/showdj.asp?DJID=12009 "Mark Levin has become one of the hottest properties in Talk radio, his top-rated show on WABC New York is now syndicated nationally by ABC Radio Networks." 73 --- Joe --- Art Blair <[EMAIL PROTECTED]> wrote: > Joe, > I think ABC. > Art... > > > - Original Message - > From: "Joe Miller, AB8YP" <[EMAIL PROTECTED]> > To: "Mailing list for the International Radio Club > of America" > > Sent: Wednesday, July 18, 2007 9:03 AM > Subject: Re: [IRCA] KOH-780 Reno, NV Update > > > > Hi Art, > > > > Do you know which network syndicates his show? I > have > > heard him on WJR 760 Detroit, but never paid that > > close attention. > > > > Thank you in advance. > > > > 73 --- Joe Miller > > > > > > > > --- Art Blair <[EMAIL PROTECTED]> wrote: > > > >> Direct from KOH. > >> > >> Mark Levin Show replaces Bill O'Reilly weeknights > >> from 9:00-10:00. Coast-To-Coast AM now heard > >> weeknights at 10:00. > >> > >> Art > >> Folsom, CA > >> ___ > >> IRCA mailing list > >> IRCA@hard-core-dx.com > >> > http://montreal.kotalampi.com/mailman/listinfo/irca > >> > >> Opinions expressed in messages on this mailing > list > >> are those of the original contributors and do not > >> necessarily reflect the opinion of the IRCA, its > >> editors, publishing staff, or officers > >> > >> For more information: http://www.ircaonline.org > >> > >> To Post a message: irca@hard-core-dx.com > >> > >> > > > > > > > > > > > Ready > > > for the edge of your seat? > > Check out tonight's top picks on Yahoo! TV. > > http://tv.yahoo.com/ > > ___ > > IRCA mailing list > > IRCA@hard-core-dx.com > > > http://montreal.kotalampi.com/mailman/listinfo/irca > > > > Opinions expressed in messages on this mailing > list are those of the > > original contributors and do not necessarily > reflect the opinion of the > > IRCA, its editors, publishing staff, or officers > > > > For more information: http://www.ircaonline.org > > > > To Post a message: irca@hard-core-dx.com > > > > > > > ___ > IRCA mailing list > IRCA@hard-core-dx.com > http://montreal.kotalampi.com/mailman/listinfo/irca > > Opinions expressed in messages on this mailing list > are those of the original contributors and do not > necessarily reflect the opinion of the IRCA, its > editors, publishing staff, or officers > > For more information: http://www.ircaonline.org > > To Post a message: irca@hard-core-dx.com > > Ready for the edge of your seat? Check out tonight's top picks on Yahoo! TV. http://tv.yahoo.com/ ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] Tillamook forest TIS
Hello, Last week we took a drive to Newport, OR to visit the Newport Aquarium. On the way home we listened to KNPD 1310 Newport. The talk show host was a local fellow and was very entertaining. He was like Michael Savage, all over the place. One minute talking about swimming in rip currents and the next local politics. We then went to Tillamook and had ice cream at the dairy. On our way back home on HW 6 we traveled through the Tillamook State forest. Heard a great TIS/HAR on 1610. Operated by the Oregon Forestry Department. Have a detailed history of the forest and tips on driving logging roads. Heard the station at mile marker 38 and listened for about 10 minutes until it faded out. Gave a call letter ID and mentioned their 10 watts of power. Has anyone heard this TIS? Dennis, Vancouver, WA ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] WWV Solar Report
:Product: Geophysical Alert Message wwv.txt :Issued: 2007 Jul 19 0006 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Environment Center # # Geophysical Alert Message # Solar-terrestrial indices for 18 July follow. Solar flux 70 and mid-latitude A-index 2. The mid-latitude K-index at UTC on 19 July was 1 (09 nT). No space weather storms were observed for the past 24 hours. No space weather storms are expected for the next 24 hours. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Trends -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Date 17 17 17 17 17 18 18 18 18 18 18 18 18 19 UTC 0900 1200 1500 1800 2100 0300 0600 0900 1200 1500 1800 2100 SFlx 73 73 73 73 72 72 72 72 72 72 72 72 70 70 A-in 55553333333322 K-in 22101111101111 ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] Power Levels
Russ, Thanks...Yeah, politicsBut to be easy, keeping the powers on even easy number would make life a bit simplier I would think. But the government has to complicate things more. hi. 73, Patrick Patrick Martin KAVT Reception Manager ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] Power Levels
--- Patrick Martin <[EMAIL PROTECTED]> wrote: > Hi everyone, > > One question I have always wondered, why are there such odd low > powers > for stations today. Paul mentioned that KATQ-1070 got 49.5 watts for > night operation. Ok, why not a round fiqure of 50 watts? What > difference > does 1/2 watt make? Why not round the powers off to the nearest 10 at > least. Any idea? > Also isn't the rule of thumb, you have to stay withing 10% of your > operating power at all times? At least I think that was true 40 years > ago. > Thanks. > *** Since Paul didn't directly answer your question, the reason is because the folks at the FCC are just crunching numbers without any real concept of any semblance of practicality. The FCC has a lot more lawyers and accountants in its employ now as opposed to engineers or other broadcast people. Ain't politics grand ? Russ Edmunds Blue Bell, PA ( 360' ASL ) [15 mi NNW of Philadelphia] 40:08:45N; 75:16:04W, Grid FN20id <[EMAIL PROTECTED]> FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15' AM: Hammarlund HQ-150 & 4' FET air core loop Pinpoint customers who are looking for what you sell. http://searchmarketing.yahoo.com/ ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] WWV Solar Report
:Product: Geophysical Alert Message wwv.txt :Issued: 2007 Jul 18 1803 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Environment Center # # Geophysical Alert Message # Solar-terrestrial indices for 17 July follow. Solar flux 72 and mid-latitude A-index 3. The mid-latitude K-index at 1800 UTC on 18 July was 1 (8 nT). No space weather storms were observed for the past 24 hours. No space weather storms are expected for the next 24 hours. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Trends -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Date 17 17 17 17 17 17 17 18 18 18 18 18 18 18 UTC 0300 0600 0900 1200 1500 1800 2100 0300 0600 0900 1200 1500 1800 SFlx 73 73 73 73 73 73 72 72 72 72 72 72 72 72 A-in 55555533333333 K-in 11221011111011 ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] Power Levels
Hi everyone, One question I have always wondered, why are there such odd low powers for stations today. Paul mentioned that KATQ-1070 got 49.5 watts for night operation. Ok, why not a round fiqure of 50 watts? What difference does 1/2 watt make? Why not round the powers off to the nearest 10 at least. Any idea? Also isn't the rule of thumb, you have to stay withing 10% of your operating power at all times? At least I think that was true 40 years ago. Thanks. 73, Patrick Patrick Martin KAVT Reception Manager ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] News-Talk ZB
Albert, Yes, 1035 is a good channel. Also 567 here for Zedders. But the 1050 IBOC hash does not help 1035. Tonga 1017 was quite good this morning. Sounded like Fijian on 531, which I presume was NZ also. 73, Patrick Patrick Martin KAVT Reception Manager ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] News-Talk ZB
2ZB in Wellington, NZ, News-Talk ZB on 1035 kHz is the DU station heard most often here, and I use them as an indicator of DU conditions. This morning 07/18/07 they were just a weak carrier buried under the five channel nighttime HD radio signal of KCTC-1050. Tuning up to 1296 kHz at 0801 UTC, I heard the familiar voice of the News-Talk ZB announcer, so I probably was hearing 1ZH in Hamilton. PFM: 1295.9980. Albert Lehr - Livermore, CA Allied A-2515 receiver Homebrew external sync detector Frequency measurement system, phase-locked to WWVB on 60 kHz 8x35x8 ft. Ewe antenna at 218 degrees ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] Measuring D-C resistance of ground rods to earth
Nick, Isn't the tx site for CBK still in Watrous? I know it used to be there. That 50 KW ND on 540 must cover most of Central Canada 24/7 hands down. 73, Patrick Patrick Martin KAVT Reception Manager ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] [NRC-AM] KATQ 1070 PLENTYWOOD, MONTANA GETS NIGHT POWER!
Thanks Paul for passing this along. 73, Patrick Patrick Martin KAVT Reception Manager ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] 720 last night
I listened to 720 last nightand heard a carrier ...over/under WGN. I listened for awhile...and about 12:45 AM , loud rock music.Robert Palmer's " Simply Irresistible" , then a Phil Collins song , then a non-ID as " Magic Ninety Eight One.com".which is in Hogansville, Ga. They have a co-located AM on 720WVCC, which was what I heard...They run single stick ND with 7970 watts. They were LOUD with some QSB...made WGN unreadable unless I nulled them. Crrier and audio gone before 1:30 AM. 73, Chris K4NHL Taylors, S.C. ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] KOH-780 Reno, NV Update
Joe, I think ABC. Art... - Original Message - From: "Joe Miller, AB8YP" <[EMAIL PROTECTED]> To: "Mailing list for the International Radio Club of America" Sent: Wednesday, July 18, 2007 9:03 AM Subject: Re: [IRCA] KOH-780 Reno, NV Update > Hi Art, > > Do you know which network syndicates his show? I have > heard him on WJR 760 Detroit, but never paid that > close attention. > > Thank you in advance. > > 73 --- Joe Miller > > > > --- Art Blair <[EMAIL PROTECTED]> wrote: > >> Direct from KOH. >> >> Mark Levin Show replaces Bill O'Reilly weeknights >> from 9:00-10:00. Coast-To-Coast AM now heard >> weeknights at 10:00. >> >> Art >> Folsom, CA >> ___ >> IRCA mailing list >> IRCA@hard-core-dx.com >> http://montreal.kotalampi.com/mailman/listinfo/irca >> >> Opinions expressed in messages on this mailing list >> are those of the original contributors and do not >> necessarily reflect the opinion of the IRCA, its >> editors, publishing staff, or officers >> >> For more information: http://www.ircaonline.org >> >> To Post a message: irca@hard-core-dx.com >> >> > > > > > Ready > > for the edge of your seat? > Check out tonight's top picks on Yahoo! TV. > http://tv.yahoo.com/ > ___ > IRCA mailing list > IRCA@hard-core-dx.com > http://montreal.kotalampi.com/mailman/listinfo/irca > > Opinions expressed in messages on this mailing list are those of the > original contributors and do not necessarily reflect the opinion of the > IRCA, its editors, publishing staff, or officers > > For more information: http://www.ircaonline.org > > To Post a message: irca@hard-core-dx.com > > ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] KOH-780 Reno, NV Update
Hi Art, Do you know which network syndicates his show? I have heard him on WJR 760 Detroit, but never paid that close attention. Thank you in advance. 73 --- Joe Miller --- Art Blair <[EMAIL PROTECTED]> wrote: > Direct from KOH. > > Mark Levin Show replaces Bill O'Reilly weeknights > from 9:00-10:00. Coast-To-Coast AM now heard > weeknights at 10:00. > > Art > Folsom, CA > ___ > IRCA mailing list > IRCA@hard-core-dx.com > http://montreal.kotalampi.com/mailman/listinfo/irca > > Opinions expressed in messages on this mailing list > are those of the original contributors and do not > necessarily reflect the opinion of the IRCA, its > editors, publishing staff, or officers > > For more information: http://www.ircaonline.org > > To Post a message: irca@hard-core-dx.com > > Ready for the edge of your seat? Check out tonight's top picks on Yahoo! TV. http://tv.yahoo.com/ ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] Measuring "AC resistance" of ground rods to earth
Nick: I have a folder of grounding info which will have some test results. I'll figure out a way to get it to you. In the meantime you might want to google for "Rudy Severns grounding". He's N6LF if I recall correctly. Some of his test results appeared in QEX and also were presented at Dayton a few years ago. Chuck > Date: Wed, 18 Jul 2007 04:45:29 +> To: irca@hard-core-dx.com> From: > [EMAIL PROTECTED]> Subject: Re: [IRCA] Measuring "AC resistance" of ground > rods to earth> > At 21:04 17/07/2007, you wrote:> > > -- Original > message --> >From: Nick Hall-Patch <[EMAIL PROTECTED]>> > >. Most of the traditional> > > methods use power line frequencies; however, > I've used the three> > > point method using an AC generator at various > frequencies up to 5> > > MHz, and ended up getting really confused with the > results> > > (decreasing conductivity with frequency). Ran out of time, > and> > > never went back to it.> > >> >Nick> >> >Did you mean decreasing > conductivity with increasing frequency? If > >so, that's the way it's > supposed to work. Otherwise, something > >weird happened if conductivity > decreased at lower frequencies.> > Umm, bad phrasing there on my part, which > implied the measurement of > ground conductivity.> > If I recall correctly, > what the three! point method measures is the > resistance between a ground rod and the earth, and with more > conductive soil, that resistance would be lower. Conductivity and > resistance are DC measurements, and the results using the three point > method and a DC source were about as expected (multiple rods gave a > low resistance, a single 8" rod gave high resistance)> > Using AC you'd actually be measuring impedance I would guess. I > believe there's capacitive reactance in parallel with that resistance > between the rod and the earth, and I'd expect that reactance to > become lower as the frequency went up, and the overall impedance would drop.> > Instead, I saw the "impedance" from rod to earth go up with > increasing frequency, so I must be misunderstanding something, or > calculating incorrectly.> > If you know of any published results for a test like this, please > refer me to it, so I can see where things went wrong (if they > did). Now to find the spare time to follow up on it.! > > best wishes,> > Nick> > > > > > __ _> IRCA mailing list> IRCA@hard-core-dx.com> http://montreal.kotalampi.com/mailman/listinfo/irca> > Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers> > For more information: http://www.ircaonline.org> > To Post a message: irca@hard-core-dx.com> ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] Metallic return
Nick, To obviate the necessity of good grounds for a EWE, I was thinking along the lines of a metallic return: simply a buried wire, with either the terminated end or the feedpoint left ungrounded. Do you think this would make the termination more predictable? I converted my 22-metre longwire into a EWE with 4.6-metre "legs." The difference was amazing. It is an excellent antenna, and happens to be situated in a low-RFI portion of our property. Steve Ratzlaff suggests I raise the height of the legs. I can get 1.65-metre steel mast sections for fairly cheap. What sayest thou, Oh Great Knight of the Breakfast Table? Charles ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] KKOH-780 Reno, NV Update
Ooops! Direct from KKOH. Mark Levin Show replaces Bill O'Reilly weeknights from 9:00-10:00. Coast-To-Coast AM now heard weeknights at 10:00. Art Folsom, CA ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] KOH-780 Reno, NV Update
Direct from KOH. Mark Levin Show replaces Bill O'Reilly weeknights from 9:00-10:00. Coast-To-Coast AM now heard weeknights at 10:00. Art Folsom, CA ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
Re: [IRCA] Measuring D-C resistance of ground rods to earth
Quoting Patrick Martin <[EMAIL PROTECTED]>: > > Mentioning CBK, I find I hear them generally 24/7 here off the Eastern > beverage, Summer and Winter. A big surprise many years ago was hearing CBK at 2 PM local on a July afternoon here in Victoria. I was testing out a Sanserino loop I'd built for a friend, and there it was, with quite a reasonable signal. It made me think twice about handing over the loop until I realized that my other antennas were hearing it also. Given that the afternoons at present are, in fact, July afternoons, I should try it again...this weekend perhaps. best wishes, Nick ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] KATQ 1070 PLENTYWOOD, MONTANA GETS NIGHT POWER!
On March 29th, 2007 KATQ 1070 was granted a Night Time Authorizaiton of 49.5watts! -- Sincerely, Paul B. Walker, Jr. www.walkerbroadcasting.com www.myspace.com/walkerbroadcasting ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
[IRCA] An Apology to WCMA
Apparently, I was very wrong about a few pieces of information that I stated concenring this station and it's operations.. I've since been corrected.. and i owe an apology to it's owner John H. Beebe and Perihelion Global. Sorry guys. I know this takes up space.. but Im man enough to admit when I'm wrong.. and this is one of those times. -- Sincerely, Paul B. Walker, Jr. www.walkerbroadcasting.com www.myspace.com/walkerbroadcasting ___ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
