Topband: Elimination of Treadmill RFI on 160 meters

For many years my wife's treadmill caused strong interference on 160 meters when it was in use, and yesterday I was able to completely eliminate the RFI using a combination of two different filters (a commercial line filter that provides both common mode and differential mode filtering, and 14

Re: Topband: Looking for 160m narrow beam RX advice - an interesting combination of ideas

An array of loops is two loops for two directions. Hi guys The simple solution that is working very well since 2009 is the HWF. Why not two horizontal loaded loops end-fire. Two identical horizontal loops see the ground wave signal at the same way Va=Vb and because the 180 degree out of

Topband: Radio-communications page from the SWPC

Has everyone allready seen this new (to me) page from the SWPC? - Very cool... http://www.swpc.noaa.gov/communities/radio-communications _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Looking for 160m narrow beam RX advice - an interesting com

G/E Guys, All subdivision Top Banders need an effective, highly directional receive antenna that is minimally affected by local wires and metal, has side and rear nulls to take care of interfering directional noises, may be mounted adjacent to xmit towers and power lines, and rotated in a

Topband: Announcing the 2015 Dayton TopBand Dinner - 26th Annual Event!

Continuing the great Top Band dinner tradition that George, K8GG and George, W8UVZ started, I am proud to announce the 26th Annual Dayton TopBand dinner. Dinner reservations are now available for 2015! Friday evening May 15, 2015 at the Crowne Plaza in the Presidential Ballroom - downtown Dayton,

Re: Topband: Looking for 160m narrow beam RX advice - an interesting combination of ideas

Hi Guys I uploaded the video on YouTube on this link, DropBox is not working. http://youtu.be/dNBekvzlxgM Hi guys The simple solution that is working very well since 2009 is the HWF. Why not two horizontal loaded loops end-fire. Two identical horizontal loops see the ground wave signal

Re: Topband: Radio-communications page from the SWPC

It's good, but www.swpc.noaa.gov/communities/space-weather-enthusiasts is better. That one also has the 5-graph ACE real-time solar wind chart. 73, Mike www.w0btu.com On Thu, Jan 8, 2015 at 8:07 AM, bruce whitney via Topband topband@contesting.com wrote: Has everyone allready seen this new

Re: Topband: Looking for 160m narrow beam RX advice - an interesting combination of ideas

On 1/8/2015 5:36 AM, JC wrote: An array of loops is two loops for two directions. Hi guys The simple solution that is working very well since 2009 is the HWF. Why not two horizontal loaded loops end-fire. Two identical horizontal loops see the ground wave signal at the same way Va=Vb and

Re: Topband: Looking for 160m narrow beam RX advice - an interesting combination of ideas

I am going to try to get a horizontal loop aimed at 70 degrees up Hi Rick It is not recommended to tilt and elevate the loop. There is two reasons it improve the signal to noise ratio, First is the attenuation of the vertical component at the same direction you are receiving the DX signal,

Re: Topband: Looking for 160m narrow beam RX advice - an interesting combination of ideas

On 1/8/2015 12:12 PM, JC wrote: I am going to try to get a horizontal loop aimed at 70 degrees up Hi Rick It is not recommended to tilt and elevate the loop. There is two reasons it Clarification: 70 degrees refers to the AZIMUTH that the loop will be aimed for. It will still be in a