Topband: 27th Annual TopBand Dinner in Dayton

2016-04-25 Thread Tim Duffy
Tables are filling up fast for the 27th Annual TopBand Dinner in Dayton. Friday, May 20, 2016. Keynote speaker is our TopBand reflector moderator Tree, N6TR Go to http://topbanddinner.com/ to get signed up for dinner tickets. If you like to hang out with TopBand ops - this is the

Re: Topband: Reverse feed system...

2016-04-25 Thread Donald Chester
>As another suggestion, try radials of two different lengths to give you > two points of low SWR within the broad 75/80M band. > Gene Smar AD3F If you are talking about a vertical, you should be looking for maximum RF current at the feed point, or better still, maximum measured field

Topband: Strange 160m intruder

2016-04-25 Thread John Kaufmann
I have been observing an intruder whose behavior is unlike anything I have seen before. It consists of a comb spectrum of CW tones in the 160m band. They pulse on and off at a regular interval. There is never any form of identification transmitted by it. Thanks to my Elecraft P3 panadapter,

Re: Topband: Topband Digest, Vol 160, Issue 25

2016-04-25 Thread Mike Irizarry
For what it is worth, I have a Pixel up and running and several 200 foot terminated bogs. The Pixel is not a bad antenna but it will not beat a properly cut and terminated BOG on 160M. My Pixel has been in operation for 2 years and the BOGS the same. The Pixel is mounted about 5 feet above the

Re: Topband: Pixel vs BOG

2016-04-25 Thread David Harmon
On the vidhe says the Pixel is 30' high. That is too high. My Pixel is nowhere near that noisy. It is 7' high located in the clear. 73 David Harmon K6XYZ Sperry, OK -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Kenneth Grimm Sent: Monday,

Re: Topband: Pixel vs BOG

2016-04-25 Thread Chortek, Robert L.
It was not clear the loop was rotated to null the noise. IF SO, that's a BIG improvement in SN Bob AA6VB Sent from my iPhone > On Apr 25, 2016, at 8:25 AM, Kenneth Grimm wrote: > > Wow! The BOG blows the Pixel loop away. The loop sounds like my > vertical! I wonder if

Re: Topband: Pixel vs BOG

2016-04-25 Thread donovanf
Hi Ken, Small diameter "magnetic" loops such as the Pixel can be very effective in nulling a single vertically polarized local RFI source, fortunately most local RFI sources are vertically polarized. Their deep narrow beamwidth null is also very useful for determining the location of an RFI

Re: Topband: Pixel vs BOG

2016-04-25 Thread Kenneth Grimm
Wow! The BOG blows the Pixel loop away. The loop sounds like my vertical! I wonder if there might be a feedline problem? Surely the loop isn't meant to be that noisy. 73, Ken - K4XL On Mon, Apr 25, 2016 at 9:55 AM, K1FZ-Bruce wrote: > Mixed reviews. > > Pixel loop

Topband: Pixel vs BOG

2016-04-25 Thread K1FZ-Bruce
Mixed reviews.   Pixel loop antenna vs 200 foot BOG antenna at   VO1HP.   www.youtube.com/watch?v=GTXvcEwgUsU   73   Bruce-k1fz www.qsl.net/k1fz/bogantennanotes/index.html _ Topband Reflector Archives - http://www.contesting.com/_topband