[HCARC] Nye Viking Low Pass Filter

[W4wj at aol.com]

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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