Re: Topband: Inverted V vs inverted L
I agree with what others have said. Best thing I did here in my noisy area was a Rx antenna. There's no way I could listen to my inverted L here in KY. KB4QZH Original message From: daraym...@iowatelecom.net Date: 4/19/20 12:35 PM (GMT-05:00) To: Peter Krulewitch , topband@contesting.com Subject: Re: Topband: Inverted V vs inverted L The inverted L will out perform and inverted vee, hands down, 90% of the time. The few exceptions will probably be near your local SR (and other times) when horizontal polarization can work better. 73. . . Dave, W0FLS-Original Message- From: Peter KrulewitchSent: Sunday, April 19, 2020 11:28 AMTo: topband@contesting.comSubject: Topband: Inverted V vs inverted LHave used inverted L with 90 apex for several years but wonder whether comparison tests or experiences with inverted V at that height compares. Tnx fer your ideas.W2LLSent from my iPhone_Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Inverted V verses inverted L
On 4/19/2020 11:57 AM, terry burge wrote: I've been contemplating putting up and inverted V on 160 meter too in hopes it could give me more 'local' coverage and a quieter background noise. If you're going to add an antenna of that size, a good RX antenna system seems a better investment of your time. The only benefit of the inv-V (which will be VERY low as a fraction of a wavelength, and thus have poor efficiency) is the horizontal polarization for the situations W0FLS noted. 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Topband: Inverted V verses inverted L
I have an inverted L. Unfortunately it is noisey but I do the best I can. I've been contemplating putting up and inverted V on 160 meter too in hopes it could give me more 'local' coverage and a quieter background noise. One of many projects I'd like to get done as usual. I've also considered a second inverted L with elevated radials to see if that might work better. Terry KI7M _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Inverted V vs inverted L
SigAssuming your interested in DX, your “L” with four elevated radials will handily beat an inverted vee the vast majority of the time. 73. . . Dave, W0FLS From: Peter Krulewitch Sent: Sunday, April 19, 2020 12:12 PM To: Joe Cc: daraym...@iowatelecom.net ; topband@contesting.com Subject: Re: Topband: Inverted V vs inverted L I should have stated for the comparison that I have 4 elevated radials under the inverted L W2LL Sent from my iPhone On Apr 19, 2020, at 12:49 PM, Joe wrote: An Inverted "L" is more or less a vertical, but the upper half got bent over correct? So a major part of an inverted "L" just as in a regular vertical is the ground system. Correct? Now how elevated radials work great in a regular vertical, only need like 4 to equal miles of wire in ground mounted radial field. Will elevated radials work for an inverted "L"? How about few and shorter than full length elevated radials as in a N6BT design? Joe WB9SBD The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 4/19/2020 11:35 AM, daraym...@iowatelecom.net wrote: The inverted L will out perform and inverted vee, hands down, 90% of the time. The few exceptions will probably be near your local SR (and other times) when horizontal polarization can work better.73. . . Dave, W0FLS -Original Message- From: Peter Krulewitch Sent: Sunday, April 19, 2020 11:28 AM To: topband@contesting.com Subject: Topband: Inverted V vs inverted L Have used inverted L with 90 apex for several years but wonder whether comparison tests or experiences with inverted V at that height compares. Tnx fer your ideas.W2LL Sent from my iPhone _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Inverted V vs inverted L
>>> The inverted L will out perform and inverted vee, hands down, 90% of the >>> time. The few exceptions will probably be near your local SR (and other times) when horizontal polarization can work better Dave, W0FLS<<< This conclusion regarding probability is supported through numerous observations over the years in various texts and documented in John Delvodere's "Low Band DXing" 5th Edition Chapter 14 Section 7. But each installation is unique. These are probabilistic forecasts (like the weather). The important thing is to go into the experiment with realistic expectations and a priori knowledge of most-likely outcomes. But by all means, experiment! Share your results! We are all learning new things every day, especially about Top Band. I will share my experience when I phased two dipoles on 80 meters, 20 feet high above average soil, as an experiment: I presumed, based upon standard literature I had reviewed up until that point and 45 years of personal experience, that the installation would be a "ground warmer." Imagine my surprise when I was able to easily hear and work into EU running QRP! I learned a lot from that experiment and VA2GU's assistance (although John Delvodere does discuss this type of antenna at the beginning of Chapter 12 in the 5th Edition). VA2GU has evaluated phased wires extensively and has collected data to confirm his conclusions (you can see his analysis on his QRZ.com web page.) Alas, a storm brought the dipoles down and the tree supports with them. Mark Lunday, WD4ELG Greensboro, NC FM06be wd4...@arrl.net http://wd4elg.blogspot.com SKCC #16439 FISTS #17972 QRP ARCI #16497 _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Inverted V vs inverted L
I should have stated for the comparison that I have 4 elevated radials under the inverted L W2LL Sent from my iPhone > On Apr 19, 2020, at 12:49 PM, Joe wrote: > > An Inverted "L" is more or less a vertical, but the upper half got bent > over correct? > > So a major part of an inverted "L" just as in a regular vertical is the > ground system. > Correct? > > Now how elevated radials work great in a regular vertical, only need like 4 > to equal miles of wire in ground mounted radial field. > > Will elevated radials work for an inverted "L"? > > How about few and shorter than full length elevated radials as in a N6BT > design? > > Joe WB9SBD > > > The Original Rolling Ball Clock > Idle Tyme > Idle-Tyme.com > http://www.idle-tyme.com > On 4/19/2020 11:35 AM, daraym...@iowatelecom.net wrote: >> The inverted L will out perform and inverted vee, hands down, 90% of the >> time. The few exceptions will probably be near your local SR (and other >> times) when horizontal polarization can work better.73. . . >> Dave, W0FLS >> >> -Original Message- From: Peter Krulewitch >> Sent: Sunday, April 19, 2020 11:28 AM >> To: topband@contesting.com >> Subject: Topband: Inverted V vs inverted L >> >> Have used inverted L with 90 apex for several years but wonder whether >> comparison tests or experiences with inverted V at that height compares. Tnx >> fer your ideas.W2LL >> >> Sent from my iPhone >> _ >> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector >> _ >> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector >> > _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Inverted V vs inverted L
Peter, It depends on a lot of things: ground characteristics, number of radials, height of radials and the overall height available. Generally, over average-to-good ground and with 32 or more radials, the inverted L will perform better for DX at anything up 100', most of the time. If you can put an inverted V higher than 100', you may get a better antenna, especially if your QTH is over poor soil and you have only a few radials. Really, there is only one way to tell: Try it. Ultimately, having both will give you the best performance. I know this is not very helpful, but ... 73, George, AA7JV/C6AGU On Sun, 19 Apr 2020 12:28:05 -0400 Peter Krulewitch wrote: Have used inverted L with 90 apex for several years but wonder whether comparison tests or experiences with inverted V at that height compares. Tnx fer your ideas.W2LL Sent from my iPhone _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Inverted V vs inverted L
An Inverted "L" is more or less a vertical, but the upper half got bent over correct? So a major part of an inverted "L" just as in a regular vertical is the ground system. Correct? Now how elevated radials work great in a regular vertical, only need like 4 to equal miles of wire in ground mounted radial field. Will elevated radials work for an inverted "L"? How about few and shorter than full length elevated radials as in a N6BT design? Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 4/19/2020 11:35 AM, daraym...@iowatelecom.net wrote: The inverted L will out perform and inverted vee, hands down, 90% of the time. The few exceptions will probably be near your local SR (and other times) when horizontal polarization can work better. 73. . . Dave, W0FLS -Original Message- From: Peter Krulewitch Sent: Sunday, April 19, 2020 11:28 AM To: topband@contesting.com Subject: Topband: Inverted V vs inverted L Have used inverted L with 90 apex for several years but wonder whether comparison tests or experiences with inverted V at that height compares. Tnx fer your ideas.W2LL Sent from my iPhone _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Inverted V vs inverted L
The inverted L will out perform and inverted vee, hands down, 90% of the time. The few exceptions will probably be near your local SR (and other times) when horizontal polarization can work better.73. . . Dave, W0FLS -Original Message- From: Peter Krulewitch Sent: Sunday, April 19, 2020 11:28 AM To: topband@contesting.com Subject: Topband: Inverted V vs inverted L Have used inverted L with 90 apex for several years but wonder whether comparison tests or experiences with inverted V at that height compares. Tnx fer your ideas.W2LL Sent from my iPhone _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Topband: Inverted V vs inverted L
Have used inverted L with 90 apex for several years but wonder whether comparison tests or experiences with inverted V at that height compares. Tnx fer your ideas.W2LL Sent from my iPhone _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Topband: Spring DX
Common darkness between VE6 and EU is getting shorter by the day, but as long as the geo-mag cooperates, the band remains open. Last night I was able to work ON7PQ, ON8DM, G4UFK and G3XHZ from between 0400-0500z. Lots of QSB, but signal strengths high on the QSB peaks. Early last week I was able to squeeze out a QSO with John SM5EDX, but mostly the AU has been too hot to allow for any trans-polar prop. I hope things continue to cool off. Fortunately the WX here has been cold and snowy so there has almost no convective activity triggering T-storms, so the QRN has been almost zero. The morning OC-AS path has been pretty reliable with good signals from JA, VK, ZL and VK6 most mornings. I am going to try and remain QRV looking for the last gasps from EU and continue to look for OC through my summer. 73, de steve ve6wz _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
