Topband
[Top] [All Lists]

TopBand: Re: TopBand- Beverage resist

To: <topband@contesting.com>
Subject: TopBand: Re: TopBand- Beverage resist
From: peter_hutter@maca.sarnoff.com (Peter Hutter)
Date: 10 Jan 1997 16:10:05 U
                      RE>TopBand: Beverage resistors               1/10/97

Hi Tree, yes the transformer provides a low impedance path for DC, but the
reason
why termination resistors blow open is due to the 2 ground rods at each end of
the
beverage that samples ground sheet currents. These currents are induced by
lightning,
etc. There's a potential difference that correspondes to the radius
surrounding
the area lightning strikes. Hope this information solves the mystery .
   73, Peter WW2Y

--------------------------------------
To: <topband@contesting.com>
Date: 1/10/97 3:47 PM
To: Peter Hutter
From: Larry Tyree

Well, if switching the beverage to ground solves the static buildup 
that blows up termination resistors, perhaps an easier way is to 
use a RF choke to provide a low impedance path for the DC.

However, don't most people's impedance matching transformmer already
provide a low resistance DC path to ground?  If so, it seems that would
suggest that the damage is being done from an RF source (like your
transmitted signal?). 

Or am I missing something (probably)...

Worked VK3IO this morning - the polar route has been totally shut
off by the high K numbers.  Hope things settle for the weekend.

Did work HR/K9BG for #141 however.  The number of unworked North American
countries fell by two this week (TI9CF is the other one).  There aren't
many left for me: CY9 (hi Mike), OX, HP (!), some of the HK0 rocks,
and PJ7 (!!!!!!!).  Also KP1 and KP5, but I am not sure they really
exist.

Trying my 3rd attempt for a YS1ZV QSL via KB5IPQ.  I am told this route 
really works, but I am having my doubts.

Maybe he is upset about my carpet bagging to his state during SS CW.

Tree N6TR
tree@contesting.com

--
FAQ on WWW:               http://www.contesting.com/topband.html
Submissions:              topband@contesting.com
Administrative requests:  topband-REQUEST@contesting.com
Sponsored by Akorn Access, Inc & KM9P

------------------ RFC822 Header Follows ------------------
Received: by maca.sarnoff.com with SMTP;10 Jan 1997 15:46:57 U
Received: from paris.akorn.net (paris.akorn.net [205.217.100.5]) by
nova.sarnoff.com (8.6.12/8.6.12) with ESMTP id PAA09527; Fri, 10 Jan 1997
15:54:54 -0500
Received: (from majordom@localhost) by paris.akorn.net (8.7.6/8.7.3) id
OAA17318 for topband-outgoing; Fri, 10 Jan 1997 14:10:56 -0500 (EST)
X-Authentication-Warning: paris.akorn.net: majordom set sender to
owner-topband using -f
Received: from lady.axian.com (lady.axian.com [38.252.131.10]) by
paris.akorn.net (8.7.6/8.7.3) with ESMTP id OAA17312 for
<topband@contesting.com>; Fri, 10 Jan 1997 14:10:54 -0500 (EST)
Received: (from tree@localhost) by lady.axian.com (8.8.2/8.6.12) id LAA14145
for topband@contesting.com; Fri, 10 Jan 1997 11:10:06 -0800 (PST)
To: <topband@contesting.com>
Date: Fri, 10 Jan 1997 11:10:06 -0800 (PST)
From: Larry Tyree <tree@lady.axian.com>
Message-Id: <199701101910.LAA14145@lady.axian.com>
To: topband@contesting.com
Subject: TopBand: Beverage resistors
Sender: owner-topband@akorn.net
Precedence: bulk




--
FAQ on WWW:               http://www.contesting.com/topband.html
Submissions:              topband@contesting.com
Administrative requests:  topband-REQUEST@contesting.com
Sponsored by Akorn Access, Inc & KM9P

<Prev in Thread] Current Thread [Next in Thread>
  • TopBand: Re: TopBand- Beverage resist, Peter Hutter <=