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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Towertalk\]\s+SWR\s+\&\s+Speed\s+of\s+Light\?\s*$/: 8 ]

Total 8 documents matching your query.

1. [Towertalk] SWR & Speed of Light? (score: 1)
Author: llindblom@juno.com (Larry L Lindblom)
Date: Thu, 26 Sep 2002 00:41:00 +0000
This is clipped from New Scientist. Though not mentioned directly in the article my wild guess is this effect is somehow due to SWR or something akin to it. What do the feed line experts on the refle
/archives//html/Towertalk/2002-09/msg00833.html (8,724 bytes)

2. [Towertalk] SWR & Speed of Light? (score: 1)
Author: na9d@speakeasy.net (Jon Ogden)
Date: Wed, 25 Sep 2002 22:47:42 -0500
Oh gosh, it goes back a bit to wave theory, but there's a couple of different "velocities" when speaking about interfering waveforms. The "group velocity" CAN indeed be faster than the speed of light
/archives//html/Towertalk/2002-09/msg00843.html (10,013 bytes)

3. [Towertalk] SWR & Speed of Light? (score: 1)
Author: htodd@twofifty.com (Hisashi T Fujinaka)
Date: Wed, 25 Sep 2002 21:34:29 -0700 (PDT)
Faster than the speed of light for the particular medium. A way to make transmission lines work better. -- Hisashi T Fujinaka - htodd@twofifty.com BSEE (6/86) + BSChem (3/95) + BAEnglish (8/95) + $2.
/archives//html/Towertalk/2002-09/msg00844.html (7,477 bytes)

4. [Towertalk] SWR & Speed of Light? (score: 1)
Author: W4EF@dellroy.com (Michael Tope)
Date: Wed, 25 Sep 2002 23:01:01 -0700
Hey Jon, Group velocity or perhaps more aptly "information velocity" is always less than or equal to the speed of light in a vacuum, but the "phase velocity" or the speed at which a constant phase po
/archives//html/Towertalk/2002-09/msg00846.html (13,808 bytes)

5. [Towertalk] SWR & Speed of Light? (score: 1)
Author: k1ttt@arrl.net (David Robbins)
Date: Thu, 26 Sep 2002 10:02:10 -0000
Sri, nothing here of any practical use. This is just a way for students to observe the phenomenon of phase velocity exceeding the speed of light. No way to transfer energy or information any faster t
/archives//html/Towertalk/2002-09/msg00848.html (9,028 bytes)

6. [Towertalk] SWR & Speed of Light? (score: 1)
Author: na9d@speakeasy.net (Jon Ogden)
Date: Thu, 26 Sep 2002 06:51:28 -0500
Thank you for the correction! You are right. Been a long time since I studied EM wave theory! That was a good refresher course! 73, Jon NA9D -- Jon Ogden NA9D (ex: KE9NA) Life Member: ARRL, NRA Membe
/archives//html/Towertalk/2002-09/msg00850.html (8,116 bytes)

7. [Towertalk] SWR & Speed of Light? (score: 1)
Author: k1mk@alum.mit.edu (Michael Keane, K1MK)
Date: Thu, 26 Sep 2002 04:53:44 -0700 (PDT)
students I'm with Dave, there's much less here than meets the eye. It's a cute physics lab demo, but what it's doing is making use of dispersion to do pulse shaping. The applied pulse width & shape i
/archives//html/Towertalk/2002-09/msg00852.html (8,622 bytes)

8. [Towertalk] SWR & Speed of Light? (score: 1)
Author: htodd@twofifty.com (Hisashi T Fujinaka)
Date: Thu, 26 Sep 2002 08:35:06 -0700 (PDT)
Yeah, after a day of biting my tongue with a bunch of corrections to people's terminology, I screw up. I should have said a POSSIBLE way of making transmission lines work faster, but I only glanced a
/archives//html/Towertalk/2002-09/msg00861.html (10,456 bytes)


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