RE: [TCML] Tuning vs Interference

["Lau, Gary" <Gary.Lau@xxxxxx>]

If you're referring to radiated RF, I'll guess that interference decreases if a coil is out of tune.  But I'm curious.  What do you use for an RF ground?  The amount of (conducted) RF that is coupled into your mains wiring is directly related to the quality of your RF ground, and this is what may have done in your cable box.  Hearing what you used would be a valuable data point for the rest of us.

If I think about it, if a coil is out of tune, the primary energy has trouble getting to the secondary side, so it stands to reason that the oscillating primary will couple through the NST and into the power mains more-so than if it could dump the energy quickly into the secondary.  That's my shoot-from-the-hip analysis, anyway.

Regards, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of Phillip Slawinski
> Sent: Thursday, June 19, 2008 10:37 PM
> To: tesla@xxxxxxxxxx
> Subject: [TCML] Tuning vs Interference
>
> Does interference go up or down when the coil is properly in tune?  I bought
> a new transformer today (and picked up a freebie).  Anyways, the freebie was
> a 15/30 so I'm running that in parallel with my other 15/30.  I have a cap
> size that's pretty close to resonant cap size for my transformer.  The caps
> are bottle caps so they're pretty terrible.  I hope my losses are all in the
> caps, because I'm only getting 12" streamers with a breakout point.  Getting
> back to the subject line here ... every time I run the coil the cable box
> loses it's authorization.  This used to happen sometimes, but not always.
> Now it happens every time.  Does this mean my coil is still out of tune, or
> will it be causing massive amounts of interference even when it's in tune?
>
> P.S.  It would seem that I've fried my cable box :(  It just keeps flashing
> "card download"

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