[50mhz] [Moon-net] [NEWSVHF] TVI Notch Filters

[Chuck Smallhouse]

These are very good for putting ahead of your own TVs.   They not 
only keep your family happy when you are operating , but they're very 
effective in showing your neighbors that you don't cause any TVI to 
your own sets.  I've been using them for years.

Chuck,  W7CS




At 07:05 PM 2/9/2012, Lance Collister, W7GJ wrote:
>Hello Magic Banders!
>
>I am passing along this information because these filters are very 
>effective, as shown by the plots Ron provided below. I use them here 
>at my house and am ordering some more to help protect my 
>neighbors.  It seems now that some are using the "converter boxes" 
>so they can receive digital TV, I have some TVI again here for the 
>first time in many years.   If you are looking for a good way to 
>keep 6m from overloading TV converter boxes, preamplifiers or FM 
>receivers in your home or nearby houses, these are a great 
>solution!  Many thanks to Ron for taking the initiative to have a 
>batch manufactured again for us to help keep us on good terms in the 
>neighborhood!  If you are interested in getting in on this run, 
>please contact Ron directly at:
>
>Ron Klimas WZ1V<wz1v at sbcglobal.net>
>
>MNI TNX and GL!  VY 73, Lance
>
>
>
>
>
> > On 2/7/2012 12:39 PM, Ron Klimas WZ1V wrote:
> >>> Hi: I received my first TVI complaints a few weeks ago after nearly a
> >>> year operating from the new QTH. (at least my January contest effort
> >>> was noticed by someone, HI). Some of you may recall those great
> >>> "bullet" type notch filters K1UHF was selling ten years ago. These
> >>> solved ALL my TVI issues at the last QTH. I can make these available
> >>> once again IF there's enough interest in a group buy. These are
> >>> shaped like a shotgun shell / house fuse but smaller with a male F on
> >>> one end and female F connector on the other, completely shielded
> >>> metal tube enclosure. The 50.1 MHz filter has over a -65 db notch,
> >>> the 144.2 model has over -75 db rejection. Both have ample bandwidth
> >>> to notch out the entire low end of the band. Insertion loss is less
> >>> than 1 dB through 860 MHz, and very reasonable through 1 GHz. Sweeps
> >>> of each are here:
> >>> http://www.wz1v.com/6mnotch.pdf
> >>>
> >>> http://www.wz1v.com/2mnotch.pdf
> >>>
> >>> IF there's enough interest, I can make these available for the low
> >>> price of $15 each. That's less than you'd pay for the cheapest high
> >>> pass filter, and these are FAR more effective. WHO'S INTERESTED? -
> >>> reply privately - I need enough pre-order commitments to justify a
> >>> group purchase, so reply only if you're seriously interested, and
> >>> indicate how many of each frequency you'd want.
> >>> If you'd also be interested in a similar 432.1 filter let me know.
> >>> -73, Ron WZ1V
> >>>
>
>
>--
>Lance Collister, W7GJ
>(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ)
>P.O. Box 73
>Frenchtown, MT   59834-0073
>USA
>TEL: (406) 626-5728
>QTH: DN27ub
>URL: http://www.bigskyspaces.com/w7gj
>Windows Messenger: W7GJ at hotmail.com
>Skype: lanceW7GJ
>2m DXCC #11/6m DXCC #815
>
>Interested in 6m EME?  Ask me about subscribing to the Magic Band EME
>email group, or just fill in the request box at the bottom of my web
>page (above)!
>
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