[HCARC] Nye Viking Low Pass Filter

[Gary and Arlene Johnson]

Just wondered what it was - not going to buy one.  What were the filters 
that we had at Field Day??

Gary J
N5BAA
HCARC Secretary 2013


----- Original Message ----- 
From: <W4wj at aol.com>
To: <hcarc at mailman.qth.net>
Sent: Monday, August 26, 2013 8:47 PM
Subject: Re: [HCARC] Nye Viking Low Pass Filter


> Gary...
>
> Not needed...
>
> Dale covered it well...
>
> Save your $$...
>
>
> 73
> Don
> W4WJ
>
>
>
> In a message dated 8/26/2013 8:20:22 P.M. Central Daylight Time,
> dale.gaudier at windstream.net writes:
>
> Gary:
>
> This type of filter is designed to attenuate your ham  signals above 
> approx.
> 50MHz. Many hams used them to prevent TVI (television  interference) to
> neighbor's TVs, especially if you lived in an area with a  TV channel 2 
> (in
> the USA 54-60 MHz, just above the 6m ham band) as I did  when I lived in
> Atlanta. Harmonics of several ham bands fall into this and  other USA TV
> channels, so these filters were useful for minimizing  interference.
>
> I have a similar filter (similar specs, different  manufacturer) that I
> haven't used in years because it's been many years  since I lived in an 
> area
> that had a TV channel 2 and I've been lucky that I  never had problems 
> with
> harmonics affecting my neighbors' TVs. Anecdotally,  digital TV 
> broadcasting
> and receivers seem to be less affected by ham  signals, although this may 
> be
> a byproduct of so many people who now use  cable or satellite receivers to
> receive TV, rather than getting it directly  over the air.
>
> Don, W4WJ, worked in TV broadcasting for many years and  can probably 
> advise
> you better than me on whether this type of filter still  has a place in 
> the
> RFI fighting arsenal.
>
> 73,
>
> Dale -  K4DG
>
> -----Original Message-----
> From: hcarc-bounces at mailman.qth.net 
> [mailto:hcarc-bounces at mailman.qth.net]
> On Behalf Of Gary and Arlene  Johnson
> Sent: Monday, August 26, 2013 2:29 PM
> To:  hcarc at mailman.qth.net
> Subject: [HCARC] Nye Viking Low Pass  Filter
>
> What is a "Nye Viking Low Pass Filter" used for??  Saw one  on Ebay while
> looking at one of the Nye Viking Tuners and it got me to  wondering.
>
> Gary J
> N5BAA
> HCARC Secretary  2013
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