[time-nuts] Isolated jacks and ground loops

[Stanley Reynolds]

At some point of DC current the resistor also becomes a fuse before that point it limits the voltage across the capacitor, 50 ohm cable and 50 ohm resistor is this just a coincidence ? 

Stanley



----- Original Message ----
From: Poul-Henning Kamp <phk at phk.freebsd.dk>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Sent: Mon, November 30, 2009 1:59:26 PM
Subject: Re: [time-nuts] Isolated jacks and ground loops

In message <20091130.115226.3548.3.cdelect at juno.com>, Corby Dawson writes:

>My understanding is that the capacitor will shunt any RF on the shield to
>chassis ground, but what does the resistor do?

Limit LF and DC current to something that will not melt your cable.

Poul-Henning

-- 
Poul-Henning Kamp      | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG        | TCP/IP since RFC 956
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Never attribute to malice what can adequately be explained by incompetence.

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