Re: Topband: Topband Digest, Vol 139, Issue 13
LA7THA - Hi Rune, With my 125+ ground radials used on my Butternut HF9V, I have used a collection of many-many wire types. As mentioned if it is wire and conducts, should perform. No need to measure if the wires are on the ground surface. Will keep an ear out for your F.B. signal...73 Ross KB8NTY RossRadio RossRadio: RF Ground Radial Website http://www.rossradio.net/ Ground Radial Discussion: Please Visit & Join In! https://groups.yahoo.com/neo/groups/groundradial/conversations/messages To: "topband@contesting.com" Subject: Topband: WD-1/TT used as radials. Hi All, I will soon prepare my 160 meter antenna @ the new qth. Will WD-1/TT military field telephone wire be useful asground radials ?. It have 2-3 coper conductor and 4-5 steel wire. Will prepare 60, 30-40 meter long radials.I have a possible source of this wire for an OK price, any suggestion ?. 73 Rune LA7THA _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Deployable radials for 80/160M
Always enjoy RF Ground Radial conversation! Regarding the solid over stranded wire...I have found that the stranded behaves much better when laying it down as it forms to the various contours of the earths surface, where as the solid seems to have a mind of its own!...The solid has been known to break at times with the repeated flexing where as the stranded goes along with the flow. Also the insulated has seemed to hold up better over the bare wire also, possibly being protected from the soils elements by its insulation. What's great about ground radials is they are so forgiving for the most part...In my 125+ radials installed with my Butternut HF9V, I have used a multitude of different wire types and most have seemed to do the job. I have stayed away from the chicken wire types and such as upon digging up after a few years they are bad news, and as one mentioned can actually add to generated noise & potential interference. I am in the middle of intense wire researching as, I am now sourcing from overseas suppliers going direct for deep discounted pricing to offer ground radials along with my RossRadio Ground Radial Lawn Staple Anchor Pins. My goal is to pass the savings on...in the spirit of amateur radio. Of-course when buying direct overseas I am required to purchase a very large quantity, so I have to get it right the first time! -73- Ross KB8NTY RossRadio RF Ground Radial Website (all about only ground radials) http://www.rossradio.net/ Ground Radial Discussion Group: Please Visit & Join In! https://groups.yahoo.com/neo/groups/groundradial/conversations/messages + - Original Message - From: To: Sent: Friday, June 27, 2014 12:00 PM Subject: Topband Digest, Vol 138, Issue 24 Send Topband mailing list submissions to topband@contesting.com To subscribe or unsubscribe via the World Wide Web, visit http://lists.contesting.com/mailman/listinfo/topband or, via email, send a message with subject or body 'help' to topband-requ...@contesting.com You can reach the person managing the list at topband-ow...@contesting.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Topband digest..." Today's Topics: 1. Re: Spam:, Re: Deployable radials for 80/160M (Matthew King - KK4CPS) 2. Re: Deployable radials for 80/160M (Richard (Rick) Karlquist) 3. Re: Deployable radials for 80/160M (Grant Saviers) 4. Re: Spam:, Re: Deployable radials for 80/160M (mstang...@comcast.net) 5. , Re: Deployable radials for 80/160M (Jim Garland) 6. Re: Spam:, Re: Deployable radials for 80/160M (Bill Wichers) 7. Re: Beverage feedline (Bill Wichers) 8. Re: Beverage feedline (k1zm--- via Topband) 9. Re: FD in the 60's (GALE STEWARD via Topband) 10. Re: Beverage feedline (Michael Tope) 11. Re: Deployable radials for 80/160M (Carl) 12. Re: Beverage feedline (Carl) 13. Re: Deployable radials for 80/160M (mstang...@comcast.net) 14. Re: , Re: Deployable radials for 80/160M (Carl) -- Message: 1 Date: Thu, 26 Jun 2014 13:01:59 -0400 From: Matthew King - KK4CPS To: he...@vitelcom.net Cc: topband@contesting.com Subject: Re: Topband: Spam:, Re: Deployable radials for 80/160M Message-ID: Content-Type: text/plain; charset=UTF-8 Wouldn't stranded wire be preferred for such a use? Maybe I'm missing something, but it seems that solid wire would be more prone to breakage. Matt KK4CPS On Thu, Jun 26, 2014 at 11:33 AM, Herb Schoenbohm wrote: Wish we had a Lowes here in the VI but I will look and see if Home Depot has a solid wire equivalent. They have THHN is stranded but I am not sure about solid insulated #14 as i have not ever seen that. Herb, KV4FZ On 6/26/2014 8:17 AM, Dave Heil wrote: That seems a little too much work when Lowe's sells 500 foot spools of insulated #14 for $45. 73, Dave K8MN On 6/24/2014 19 46, Herb Schoenbohm wrote: I found a great source for radial wire at home Depot where they have 100' rolls of 14-2 packaged for under $40. Two conductors are insulated and one of course is not after the easy job of striping them across a bench jig or simple having a second person hold a pocket knife while you pull the conductors apart you end up with 300 feet of higher quality ground radial material. 2 each 100 foot insulated radials due to the VF are very close to 1/4 wave consideration and the the shorter 100 foot bare doesn't hurt either. This of course brings up the issue of mixing bare and insulated wire in any ground system so I use the bare conductor for other 80 and 40 verticals. Yet the sum of the three wires is cheaper than buying them individually it seems. _ Topband Reflector Archives - http://www.con
Re: Topband: Deployable radials for 80/160M
K3VAT - Rich, In addition to the helpful replies you will receive on the Topband list, you may want to also present to the new Yahoo "Ground Radial" user group. Presently a 100 or so members there who may also throw out some ideas! Wishing you luck with the task. If it may help I offer a product that is fast-easy & affordable which may help with the ground radial set-up. (info & links below) With Kind Regards Ross KB8NTY RossRadio RossRadio: RF Ground Radial Website http://www.rossradio.net/ Ground Radial Discussion: Please Visit & Join In! https://groups.yahoo.com/neo/groups/groundradial/conversations/messages Hello, I'm now able to use a couple acre parcel for a new 80/160M shorty vertical (80'); however, I can use this land only between Nov and May. ? For radials I'm intending on using a #22 stranded hookup wire, 300v and wondering if this particular wire would be suitable for spooling out the ~90 foot radials then respooling them up several months later. ?Expected power = 1KW; Number of radial ~ 40. ?Any hints appreciated. 73, Rich, K3VAT +++ _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: RF ground radials
In reference to all the ground radial postings; A link to a source of RF ground radial links, all in one place without having to search the web, links are always updated. -73- http://www.rossradio.net/ + Today's Topics: 1. Re: TO7CC (Ray Benny) 2. Ice (Tom W8JI) 3. Re: Ice (Mike Waters) 4. Re: Ice (Charlie Cunningham) 5. Re: Power stayed on! (Gary Smith) 6. Re: NQ4I (Mike Waters) 7. Re: Power stayed on! (ZR) 8. Question - optimum number of radials (DALE LONG) 9. Re: Question - optimum number of radials (Mike Waters) 10. Re: Question - optimum number of radials (Joe Subich, W4TV) 11. Re: Ice (n0...@juno.com) 12. Re: Ice (Gary and Kathleen Pearse) 13. Re: Question - optimum number of radials (Tom W8JI) 14. Re: Question - optimum number of radials (Brad Rehm) 15. Re: Question - optimum number of radials (Tom W8JI) 16. Re: Question - optimum number of radials (Dan Maguire) 17. Palomar R-X Noise Bridge (map...@windstream.net) 18. Re: Question - optimum number of radials (Richard Fry) 19. Re: Question - optimum number of radials (Charlie Cunningham) 20. Re: Question - optimum number of radials (Bill Cromwell) 21. Question - optimum number of radials (James Rodenkirch) 22. Re: Question - optimum number of radials (Carl) 23. Re: Palomar R-X Noise Bridge (Carl) 24. Re: Question - optimum number of radials (Charlie Cunningham) 25. Re: Question - optimum number of radials (Charlie Cunningham) -- Message: 1 Date: Thu, 13 Feb 2014 12:35:12 -0700 From: Ray Benny Cc: "topband@contesting.com" , f6...@sfr.fr Subject: Re: Topband: TO7CC Message-ID: Content-Type: text/plain; charset=ISO-8859-1 Heard TO7CC at our SS yesterday on 80m CW - 0100z, until about 0130z. You worked K6XT, but I was there too. Will be looking for you on 80m CW at or Sunset this evening, about 0100z and later. 73, & tnx, Ray, N6VR On Thu, Feb 13, 2014 at 7:35 AM, Doug Renwick wrote: I haven't heard them or seen spots on 160 or 80 for the west coast around 1400 UTC give or take. Doug -Original Message- Try to focuse our work on top band each time as possible. Every nights ops are there. At the end of FT5ZM QRG back quiet but dont Forget that another guys still on fr?quences for you. Finaly team stay on the Island untill sunday morning. D?pending cndx Est coast stations Can be ear half and more after SR. In FR time around 2H30 AM. Last night have strong noise even on 80 didn't log much qso in lows bands. TO7CC team _ Topband Reflector Archives - http://www.contesting.com/_topband --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com _ Topband Reflector Archives - http://www.contesting.com/_topband -- Message: 2 Date: Thu, 13 Feb 2014 15:32:53 -0500 From: "Tom W8JI" To: Subject: Topband: Ice Message-ID: Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original The ice that fell off my Yagi's typically measures about 1" thick off the largest pieces, and 1/2" thick on the smaller thicknesses. I'm going to assume the thick pieces are from the bottoms, so that's probably like 3/4 inch radial ice. We lost power just before sunset last night.The power lines are a mess on my road, I'd guess they use maybe 400 ft spans, so they broke in multiple places. I expect days before we have commercial power. All of my Yagis sprung back except the 40 meter antenna. The ice dropped off one side of the top antenna, so it rotated the elements enough to look pretty ugly. The bottom 40M Yagi lived just fine until big chunks of ice kept banging it, and then one side of one element bent. Many ropes snapped. The next time I need to remember to go out and release tension **before** the ice hits. Once it started icing, none of the ropes running through pulleys could be released. I have not looked at Beverages and in woods and fields, but I have a lot of tree and building damage so I expect some chain saw and receiving antenna work. All in all not bad for such a large amount of ice. 73 Tom -- Message: 3 Date: Thu, 13 Feb 2014 14:47:50 -0600 From: Mike Waters To: topband Subject: Re: Topband: Ice Message-ID: Content-Type: text/plain; charset=ISO-8859-1 The last ice storm surely would have taken down my 160m inverted-L, had it not been for the counterweight at the end. (It's made from #16 THHN, not very strong.) The pulley did not completely ice up, apparently because it moved every so often as ice made the antenna heavier. At one point, the ice on the antenna raised the counterweight way up in the air. After the ice melted, it all returned to the way it was before the storm. I lost one wire on one of the Beverages (where there was a kink from other damage), but it's a matter of time
Re: Topband: Radial Question
AA6VB-Bob, Based on some good replies to "test" some under the home, a thought would be to go for it-however then install a switching arraignment for those radials under the home. Could yield in some interesting A-B results. My only experience with the ground radials was that; with the increased number of radials yielded improvement in both transmit & receive, and with certain select rigs/amplifiers it seemed to help loading up on bands such as 30-40-80-etc. Regardless just lay down as many and as long as you can, it's all good! -73- Ross U.S. Amateur Radio: KB8NTY RossRadio Antenna Ground Radial Website: http://www.rossradio.net/ + - Original Message - From: To: Sent: Tuesday, January 07, 2014 8:04 AM Subject: Topband Digest, Vol 133, Issue 9 Send Topband mailing list submissions to topband@contesting.com To subscribe or unsubscribe via the World Wide Web, visit http://lists.contesting.com/mailman/listinfo/topband or, via email, send a message with subject or body 'help' to topband-requ...@contesting.com You can reach the person managing the list at topband-ow...@contesting.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Topband digest..." Today's Topics: 1. Radial Question (Chortek, Robert L) 2. Re: Radial Question (Jim Brown) 3. Re: Radial Question (bruce whitney) 4. Re: Radial Question (Charlie Cunningham) 5. Re: Radial Question (Gary and Kathleen Pearse) 6. Re: Radial Question (Bill Stewart) 7. Re: Radial Question (Charlie Cunningham) 8. Re: Radial Question (Charlie Cunningham) 9. Re: Radial Question (Charlie Cunningham) 10. Re: Radial Question (Bill Stewart) 11. Re: Radial Question (Bill Stewart) 12. Re: Radial Question (Charlie Cunningham) 13. Preliminary Stew Results (Tree) 14. 160m L or Shunt? (Carl Braun) 15. Re: Radial Question (David Aslin) 16. Feeding 160M Vertical on 80M (Bob K6ZZ) 17. Re: Preliminary Stew Results (Jim Brown) 18. Re: Feeding 160M Vertical on 80M (Charlie Cunningham) 19. Re: Feeding 160M Vertical on 80M (Jim Brown) 20. Re: Feeding 160M Vertical on 80M (Charlie Cunningham) 21. Re: Feeding 160M Vertical on 80M (Tom W8JI) -- Message: 1 Date: Mon, 6 Jan 2014 19:51:50 + From: "Chortek, Robert L" To: "topband@contesting.com" Subject: Topband: Radial Question Message-ID: <65020b68ca774ac2a7383a78662c9...@blupr04mb465.namprd04.prod.outlook.com> Content-Type: text/plain; charset="us-ascii" Hello Fellow Topbanders - We are about to embark on a front yard landscaping project at our home on a tiny 12, 500 sq. ft. lot. It occurred to me this would be an excellent opportunity to put down a large number of buried ground radials BUT, they would only cover about 90 degrees of the compass. Then it also occurred to me I could put down a large number of radials in our crawl space under the house. So, my question is, what is the likely negative impact, if any, from the house being between the 160 meter vertical and the radials placed under the house? I assume the house material, most of which is wood, tile, sheetrock, etc. (with the usual house wiring) would be invisible to RF and have minimal impact. If I could put down say 60 radials ranging in length from 40 to 120 feet long, would it outperform my current system with 8 resonant elevated radials 10 -15 feet high (which cover only about 120 degrees of the compass)? I'm incline to proceed IF it would provide a meaningful improvement in my transmitted signal strength. Thanks for any help! 73, Bob/AA6VB -- Message: 2 Date: Mon, 06 Jan 2014 13:23:41 -0800 From: Jim Brown To: topband@contesting.com Subject: Re: Topband: Radial Question Message-ID: <52cb1edd.8020...@audiosystemsgroup.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 1/6/2014 11:51 AM, Chortek, Robert L wrote: We are about to embark on a front yard landscaping project at our home on a tiny 12, 500 sq. ft. lot. Two things to study. N6LF has studied radial systems extensively, and written about his work in at least 8 or 10 applications notes on his website. Google to find it. For "the executive summary" of his work, and a LOT of other work by others, see the pdf of the 160M power point on my website. http://k9yc.com/publish.htm 73, Jim K9YC -- Message: 3 Date: Mon, 6 Jan 2014 13:45:55 -0800 (PST) From: bruce whitney To: "Chortek, Robert L" , "topband@contesting.com" Subject: Re: Topband: Radial Question Message-ID: <1389044755.70500.yahoomail...@web185303.mail.gq1.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Bob, do it... It can't?hurt the 'transmit' perfor
Re: Topband: Digital mode spurious issues
- Original Message - From: To: Sent: Tuesday, December 31, 2013 12:00 PM Subject: Topband Digest, Vol 132, Issue 30 Send Topband mailing list submissions to topband@contesting.com To subscribe or unsubscribe via the World Wide Web, visit http://lists.contesting.com/mailman/listinfo/topband or, via email, send a message with subject or body 'help' to topband-requ...@contesting.com You can reach the person managing the list at topband-ow...@contesting.com My Kenwood TS-590S "NR" and A-notch "BC" controls when properly adjusted perform magic with this scenario! *Happy New Year* KB8NTY http://www.rossradio.net/ When replying, please edit your Subject line so it is more specific than "Re: Contents of Topband digest..." Today's Topics: 1. Digital mode spurious issues (Tom W8JI) 2. Re: Digital mode spurious issues (Mike Waters) 3. Re: Digital mode spurious issues (Jim Brown) 4. Re: Digital mode spurious issues (Richard (Rick) Karlquist) 5. Re: Digital mode spurious issues (Joe Subich, W4TV) 6. Re: Digital mode spurious issues (Charlie Cunningham) 7. Re: Digital mode spurious issues (Jim Brown) 8. Re: [CQ-Contest] Stew Perry Streaming Audio (Herb Schoenbohm) 9. Re: Digital mode spurious issues (Grant Saviers) 10. Re: Digital mode spurious issues (W2RU - Bud Hippisley) 11. Re: Digital mode spurious issues (Mike Waters) 12. Re: Digital mode spurious issues (Charlie Cunningham) 13. Re: Digital mode spurious issues (JC N4IS) 14. Re: Digital mode spurious issues (Mike Waters) 15. Re: Digital mode spurious issues (Tom W8JI) 16. Re: Digital mode spurious issues (Charlie Cunningham) 17. Re: Digital mode spurious issues (Steven Raas) 18. Re: Digital mode spurious issues (Mike Waters) 19. Re: Stew Perry Streaming Audio (Shoppa, Tim) 20. CA/OR/AZ activity during Stew Perry - anecdotal data (Barry N1EU) 21. Re: Digital mode spurious issues (Tom W8JI) -- Message: 1 Date: Mon, 30 Dec 2013 12:11:49 -0500 From: "Tom W8JI" To: "Topband" Subject: Topband: Digital mode spurious issues Message-ID: Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response I have not been on the air for a year or so, but decided to get back on. I was listening to a DX station around 1833 when a digimode station up roughly around 1837 came on with a LSB "spurious" signal on 1833. His signal was a series of slowly changing stepped tones. I don't know what mode that was. His unwanted sideband suppression was about 40 dB, but that was not nearly enough. He was 15 dB out of noise with his unwanted sideband. Does anyone know of a universal software to decode signals? Since the FCC does not require a CW ID, I think that is the only way to identify stations. I assume: 1.) Operators are unlikely to accept they have a problem if they are getting good reports on the intentional signal 2.) Some rigs just should not be used for digimodes (this was a sideband suppression issue) 3.) Those who unwisely placed digimode subbands next to popular weak signal areas, especially when sideband selection produces a supurious that falls in weak signal areas, are unlikely to rethink the poor placement or poor advice on selecting sidebands 4.) With a little work to convince them, most digital ops with radio problems would avoid operating 73 Tom -- Message: 2 Date: Mon, 30 Dec 2013 12:30:34 -0600 From: Mike Waters To: Tom W8JI Cc: Topband Subject: Re: Topband: Digital mode spurious issues Message-ID: Content-Type: text/plain; charset=ISO-8859-1 Tom, I believe the mode that operates at 1873-1838 is JT65, and WSJT is needed to decode it. I never tried it. It was developed by K1JT for weak-signal and EME work. http://www.physics.princeton.edu/pulsar/K1JT/wsjt.html A common scenario with digital modes is that the audio into the mic input is too high, causing unwanted spurs. 73, Mike www.w0btu.com On Mon, Dec 30, 2013 at 11:11 AM, Tom W8JI wrote: ... a digimode station up roughly around 1837 came on with a LSB "spurious" signal on 1833. His signal was a series of slowly changing stepped tones. I don't know what mode that was. His unwanted sideband suppression was about 40 dB, but that was not nearly enough. He was 15 dB out of noise with his unwanted sideband. Does anyone know of a universal software to decode signals? Since the FCC does not require a CW ID, I think that is the only way to identify stations. ... -- Message: 3 Date: Mon, 30 Dec 2013 14:17:57 -0800 From: Jim Brown To: topband@contesting.com Subject: Re: Topband: Digital mode spurious issues Message-ID: <52c1f115.6050...@audiosystemsgroup.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Topband: topband for k3 users
Jose, Not trying to compare or talk down the very fine K3, I am only giving you my real-world experience. In regards to your inquire; I cannot speak of the AM broadcast issue, however regarding "city noise"...My Kenwood TS-590 performs true magic by means of use of the noise reduction control!. NR1 is a analog type with NR2 a DSP type. Living in a suburb of Cleveland Ohio in a populated city lot-with power,telephone & cable lines across my lot, the Kenwood TS-590's noise reduction is almost unbelievable. Compared to my TS-440, TS-450, TS-511, TS-850 & TS-930 Kenwood sure got this function performing beyond what I ever experienced in an HF transceiver! With the usual "noise" we city dwellers experience by use of the noise reduction function-the noise is "completely" gone and leaves nothing but the pure CW tone-almost in an eerie manner. Only thing I can compare it to was my TenTec Century-22's well known filter system- You hear nothing but the station desired and absolutely nothing else...No white noise no atmospheric noise no nothing. Please know I am not comparing the TS-590 vs the K3, wont even get into all that and there are other user groups available for that conversation...I am only offering my reply & experience to your inquire of improved reception with "city type noise". Good luck with whatever you decide...There is a solution to your situation. -73- http://www.rossradio.net/ + - Original Message - From: To: Sent: Saturday, October 05, 2013 12:00 PM Subject: Topband Digest, Vol 130, Issue 5 Send Topband mailing list submissions to topband@contesting.com To subscribe or unsubscribe via the World Wide Web, visit http://lists.contesting.com/mailman/listinfo/topband or, via email, send a message with subject or body 'help' to topband-requ...@contesting.com You can reach the person managing the list at topband-ow...@contesting.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Topband digest..." Today's Topics: 1. More on two wire Bevs (cqtestk...@aol.com) 2. Re: More on two wire Bevs (Mike Waters) 3. 160m Inverted L High SWR (Tom Boucher) 4. Re: 160m Inverted L High SWR-SUCCESS! (Bill Stewart) 5. Re: 160m Inverted L High SWR-SUCCESS! (Charlie Cunningham) 6. Very quick noise location (Tree) 7. For K3 users (Jose Orellana - EA7BJ) -- Message: 1 Date: Fri, 4 Oct 2013 13:24:21 -0400 (EDT) From: cqtestk...@aol.com To: topband@contesting.com Subject: Topband: More on two wire Bevs Message-ID: <38f11.2728b780.3f805...@aol.com> Content-Type: text/plain; charset="US-ASCII" Planning on putting up 880 footers. One for NE/SW and the other NW/ SE. I'm not planning on using relays etc for these, just planning on running two wires parallel to each other for the 880 feet with the usual xfrmr on one end and a terminating resistor on the end for each parallel Beverage. They will be approximately 10 feet above the ground. What is the minimum spacing required between the parallel wires for good performance? Can they be spaced above each other ...perhaps a foot apart? Ideas? 73 Bill K4XS/KH7XS -- Message: 2 Date: Fri, 4 Oct 2013 12:40:56 -0500 From: Mike Waters To: cqtestk...@aol.com, topband Subject: Re: Topband: More on two wire Bevs Message-ID: Content-Type: text/plain; charset=ISO-8859-1 Bill, For a bi-directional Beverage, the termination resistor does not go at the far end, regardless of whether you feed it with one coax or two. A reflection transformer goes at the far end, and two other transformers go at the feed end. They can be put one above the other, but I would not do it at a 12" spacing as it could cause unbalance and a degraded F/B ratio. We have an explanation about that at http://www.w0btu.com/Beverage_antennas.html#How_far_apart 73, Mike http://www.w0btu.com/Beverage_antennas.html On Fri, Oct 4, 2013 at 12:24 PM, wrote: Planning on putting up 880 footers. One for NE/SW and the other NW/ SE. I'm not planning on using relays etc for these, just planning on running two wires parallel to each other for the 880 feet with the usual xfrmr on one end and a terminating resistor on the end for each parallel Beverage. They will be approximately 10 feet above the ground. What is the minimum spacing required between the parallel wires for good performance? Can they be spaced above each other ...perhaps a foot apart? Ideas? -- Message: 3 Date: Fri, 4 Oct 2013 21:28:28 +0100 From: "Tom Boucher" To: Subject: Topband: 160m Inverted L High SWR Message-ID: <5ECE34FE02CD4BDE9D0AF9B7CF13BA33@TomPC> Content-Type: text/plain; charset="iso-8859-1" Works OK for me as well! Although mine needs 1600pF and I use little ceramic capacitors rated at 6.3KV, which are readily av
Re: Topband: Measuring Vertical input parameters while installing radials
Eddie, Great Job! I would not worry to take results any further unless an individual request. Your results are a helpful visual, resulting in the fact that indeed you can obtain increased DB's as a result of simple RF ground radials! Those who re-quote the statement that a "vertical antenna radiates equally poor in all directions" need to learn about ground radials... The subject has been worked & re-worked by many in years past, with varied results by those who have investigated. N6LF - Rudy comes to mind with his very detailed study. To keep it simple & allow the hobby to remain enjoyable-your results should speak volumes. Adding radials equal increased efficiency. I have a filtered RF ground radial link available below, which should offer those who may have interest in RF ground radials, hours & hours of good interesting reading. http://www.rossradio.net/ Thank you Eddie for your contribution! -73- KB8NTY http://www.rossradio.net/ ++ - Original Message - From: To: Sent: Friday, September 20, 2013 12:00 PM Subject: Topband Digest, Vol 129, Issue 29 Send Topband mailing list submissions to topband@contesting.com To subscribe or unsubscribe via the World Wide Web, visit http://lists.contesting.com/mailman/listinfo/topband or, via email, send a message with subject or body 'help' to topband-requ...@contesting.com You can reach the person managing the list at topband-ow...@contesting.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Topband digest..." Today's Topics: 1. Re: Hairpin Matching Coil Questions - "Shunt"? (Jim GM) 2. 'Hairpin' matching (Tom Boucher) 3. Re: Hairpin Matching Coil Questions - "Shunt"? (Tom W8JI) 4. 'Hairpin' matching (Tom Boucher) 5. AutoEZ v2 with Optimizer (Dan Maguire) 6. Re: 'Hairpin' matching (Charlie Cunningham) 7. Re: Measuring Vertical input parameters while installing radials (Eduardo Araujo) 8. Re: AutoEZ v2 with Optimizer (Charlie Cunningham) 9. Re: 'Hairpin' matching (John Chappell G3XRJ) 10. Re: Measuring Vertical input parameters while installing radials (Charlie Cunningham) 11. Re: elevated radials (Mike Waters) -- Message: 1 Date: Thu, 19 Sep 2013 13:25:02 -0500 From: Jim GM To: topband Subject: Re: Topband: Hairpin Matching Coil Questions - "Shunt"? Message-ID: Content-Type: text/plain; charset=ISO-8859-1 Thankyou Charlie. I got those Q numbers from http://www.m0ukd.com/Calculators/air_core_inductor_calculator/ Maybe a decimal point was left out. Thanks Tom -- Jim K9TF -- Message: 2 Date: Thu, 19 Sep 2013 19:52:33 +0100 From: "Tom Boucher" To: "160 reflector" Subject: Topband: 'Hairpin' matching Message-ID: Content-Type: text/plain; charset="iso-8859-1" Just to add a comment on this thread: I do not use an inductor to match my inverted 'L', just a capacitor from coax centre/bottom of wire to the radial point. Further I do not use big wide space 'toast-rack' Cs, but tiny ceramic ones rated at 6.3KV which will handle very decent amounts of power and are readily available over here. They seem to handle the high currents at the bottom of the quarter wave 'L' quite happily. I measure the impedance at resonance of the antenna without any matching network, then use www.sandiego.edu/~ekim/e194rfs01/jwmatcher2.html to calculate the L-network values needed. Fit the parallel capacitor then lengthen the antenna slightly to bring it back to the required frequency. This provides the inductance necessary for the L-network. Needless to say, your MFJ, or Palstar ZM-30 in my case, antenna analyser will probably give you the wrong sign for the reactive part of the antenna's impedance. This had me going for a long time before I realised the problem! Check this by moving the analyser frequency LF from resonance and the impedance should show -jX (capacitive). Moving the analyser HF from resonance should show inductive reactance (+jX). My inverted 'L' needs 1600pF to give me 50 + j0. I have also made switched L-networks to successfully resonate the same antenna on some other bands. 73 Tom G3OLB -- Message: 3 Date: Thu, 19 Sep 2013 16:22:57 -0400 From: "Tom W8JI" To: "Jim GM" , "topband" Subject: Re: Topband: Hairpin Matching Coil Questions - "Shunt"? Message-ID: <3F7B5C34343645EF9DDACB0DCBFC62E3@MAIN> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Thankyou Charlie. I got those Q numbers from http://www.m0ukd.com/Calculators/air_core_inductor_calcu
Topband: Measuring Vertical input parameters while installing radials
Eddie, LU2DKT, I read your post with great interest!...Great work there. I am very much interested in your findings & report. I wish to request if you can send to me, when you find a method. Additionally I wish to request for your permission to post your data on my Blog-Website at: http://radialstaple.wordpress.com/ Currently working on a upgrade/revision at: http://www.rossradio.net/ Your valued information may then be shared with all who share our same interest in RF ground radials! Of course your data will be given acknowledgment as submitted & produced by Eddie-LU2DKT. Running a ground mounted Butternut HF9V here with the addition of 130 ground radials, was a monumental improvement in both transmit & receive. They say there is a point of diminished returns-however that point for me was very subtle. Looking forward to your valuable data, and hope to publish it on RossRadio RF Ground Radial site! -73- Ross, KB8NTY ++ - Original Message - From: To: Sent: Thursday, September 12, 2013 12:00 PM Subject: Topband Digest, Vol 129, Issue 20 Send Topband mailing list submissions to topband@contesting.com To subscribe or unsubscribe via the World Wide Web, visit http://lists.contesting.com/mailman/listinfo/topband or, via email, send a message with subject or body 'help' to topband-requ...@contesting.com You can reach the person managing the list at topband-ow...@contesting.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Topband digest..." Today's Topics: 1. Re: Stacked verticals - followup (David Raymond) 2. The Quest to save AM radio (Ken Claerbout) 3. Re: Stacked verticals - followup (HAROLD SMITH JR) 4. Re: The Quest to save AM radio (rfoxw...@tampabay.rr.com) 5. Measuring Vertical input parameters while installing radials (Eduardo Araujo) 6. Re: More anecdotal "stories" to cause one to stop and (Richard Fry) -- Message: 1 Date: Tue, 10 Sep 2013 15:01:27 -0500 From: "David Raymond" To: "Bill Cromwell" , Subject: Re: Topband: Stacked verticals - followup Message-ID: <832F1E4536934B84BE0D014FAA4516F4@radiocomputer> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response We have a Franklin antenna at WHO, 1040 KHZ, here in Des Moines. I've been told it is one of the few remaining in the country. 73. . . Dave W0FLS - Original Message - From: "Bill Cromwell" To: Sent: Tuesday, September 10, 2013 12:34 PM Subject: Re: Topband: Stacked verticals - followup Hi Ed, The engineer at WTIC responded. That station does not have a Franklin antenna but has "series fed halfwave" during the day and switches in a second one at night, phased to change the radiation pattern. He also told me that their 'sister station', KDKA in Pittsburgh, does use a Franklin antenna. Some members near Pittsburgh may want to roll by for a peek at it. 73, Bill KU8H On 09/06/2013 04:13 PM, Edwin Karl wrote: There are several interesting articles if you Google "Franklin Antenna" they are mechanically BIG and require feeding ingenuity (hams are known for this feature ...) but are stacked verticals, note- phase the top element to avoid cancellation. If memory serves me right WTIC in Hartford phased two of these puppies, but it's been a long time ... 73! ed k0kl _ Topband Reflector _ Topband Reflector -- Message: 2 Date: Wed, 11 Sep 2013 19:29:00 -0500 (CDT) From: Ken Claerbout To: Topband@contesting.com Subject: Topband: The Quest to save AM radio Message-ID: <14507091.1201183.1378945740542.JavaMail.root@vms170033> Content-Type: text/plain; charset=UTF-8 "Exactly right. Isn't small government wonderful?" That's really not the problem. Many federal agencies, including the one I work at, have plenty of money and personnel. It's more a function of priorities and who sets them. Years ago when I was in a Master's program, one of the courses I took was Telecommunications Law taught at the George Mason University School of Law. It was taught by an adjunct professor who was an attorney at the FCC. I was the only engineer in the class. It was a fantastic class, the best one of the program! One of the things we looked at was expanding broadband access in the US. BPL was prominent at the time. I remember trying to make the case about its interference potential to existing services and I was basically told I hear you, your right, but you are barking up the wrong tree. It was clear many of the decisions were being made by policy types and not by people that understood its implications, especially the technical part. If BPL was
Re: Topband: Topband Digest, Vol 125, Issue 17
Dean, Kreger Components, Has the best pricing! Better than all distributors, and their website displays available inventory on hand. A 100% woman owned & run company..you dont need to drop any names as they all will offer you first class service. -73- RossRadio Antenna Ground Radial Website: http://radialstaple.wordpress.com/ + www.kregercomponents.com. - Original Message - From: To: Sent: Friday, May 17, 2013 12:00 PM Subject: Topband Digest, Vol 125, Issue 17 Send Topband mailing list submissions to topband@contesting.com To subscribe or unsubscribe via the World Wide Web, visit http://lists.contesting.com/mailman/listinfo/topband or, via email, send a message with subject or body 'help' to topband-requ...@contesting.com You can reach the person managing the list at topband-ow...@contesting.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Topband digest..." Today's Topics: 1. "New beverage" (Ron Spencer) 2. Re: "New beverage" (Joe Subich, W4TV) 3. Re: "New beverage" (Tom W8JI) 4. Re: "New beverage" (Herb Schoenbohm) 5. Re: "New beverage" (John Kaufmann) 6. Re: "New beverage" (Tom W8JI) 7. Re: "New beverage" (PA5MW, Mark) 8. New Filtering Technique (N7DF) 9. RFI ferrites (dospi...@q.com) 10. Re: RFI ferrites (Andy Blank) 11. Re: RFI ferrites (Shoppa, Tim) 12. Re: RFI ferrites (N1BUG) 13. Re: RFI ferrites (Richard Zalewski) 14. Re: RFI ferrites (Charlie Cunningham) -- Message: 1 Date: Thu, 16 May 2013 10:19:30 -0700 From: Ron Spencer To: topband@contesting.com Subject: Topband: "New beverage" Message-ID: <51951522.5010...@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed After looking at their literature it appears to me that this is nothing more then two beverages, one in each direction, with the "feed unit" being, perhaps, a couple relays. I don't see the merit in using RG6 as the beverage wire: its heavy, will need more supports, and compared to other solutions, perhaps more expensive. And the fact that the feed unit can be placed anywhere along the antenna? I must be missing something clever because all that would seem to do is make one direction's wire longer and the other shorter? Ron N4XD -- Message: 2 Date: Thu, 16 May 2013 13:38:42 -0400 From: "Joe Subich, W4TV" To: topband@contesting.com Subject: Re: Topband: "New beverage" Message-ID: <519519a2.5090...@subich.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Electronically both directions are "full length" ... I suspect the design is similar to the one shown about half way down the page here: http://kw2p.blogspot.com/2010/08/kw2p-beverage-antenna-designs.html 73, ... Joe, W4TV On 5/16/2013 1:19 PM, Ron Spencer wrote: After looking at their literature it appears to me that this is nothing more then two beverages, one in each direction, with the "feed unit" being, perhaps, a couple relays. I don't see the merit in using RG6 as the beverage wire: its heavy, will need more supports, and compared to other solutions, perhaps more expensive. And the fact that the feed unit can be placed anywhere along the antenna? I must be missing something clever because all that would seem to do is make one direction's wire longer and the other shorter? Ron N4XD All good topband ops know how to put up a beverage at night. _ Topband Reflector -- Message: 3 Date: Thu, 16 May 2013 13:57:50 -0400 From: "Tom W8JI" To: Subject: Re: Topband: "New beverage" Message-ID: Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response After looking at their literature it appears to me that this is nothing more then two beverages, one in each direction, with the "feed unit" being, perhaps, a couple relays. I don't see the merit in using RG6 as the beverage wire: its heavy, will need more supports, and compared to other solutions, perhaps more expensive. And the fact that the feed unit can be placed anywhere along the antenna? I must be missing something clever because all that would seem to do is make one direction's wire longer and the other shorter? Since the antenna is a transmission line, with suitable end and center transformers, the feedpoint can be placed anywhere and the full length used. With different transformers, any reasonable type of transmission line can be used. -- Message: 4 Date: Fri, 17 May 2013 14:44:29 -0400 From: Herb Schoenbohm To: topband@contesting.com Subject: Re: Topband: "New beverage" Message-ID: <51967a8d.4040...@vitelcom.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Good quality flooded RG-6 laying on the ground (BOG) might be an easy install like before contests at some locations. However I have no idea on how
