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[Towertalk] RF and Speed Stream

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Subject: [Towertalk] RF and Speed Stream
From: (Jon Ogden)
Date: Thu, 05 Sep 2002 21:02:20 -0500
on 9/5/02 6:43 PM, Richard Zalewski at wrote:

> Any one out there using a Speed Stream 5667 DSL Modem or similar external
> modem by Efficient Networks?  Having a bear of a time keeping 40 & 20 M RF
> out even at low power.
> I loose sync with 7Mhz or 14Mhz RF in the environment.  I have lots of the
> right kind of ferrite on the 3 external connections to the modem/router but
> can't seem to solve the problem.

I have a Speedstrean 5260 DSL modem.  I don't have so much of a problem on
20M, but do have problems on 40 and 80 m.  I don't have the problem at low
power but only high power.

One thing both of us might want to try are phone line filters like form
K-Com.  The problem is, I don't know what their frequency response is.

This is a good question for the experts on the RFI reflector.



Jon Ogden
NA9D (ex: KE9NA)

Life Member: ARRL, NRA
Member:  AMSAT, DXCC

"A life lived in fear is a life half lived."

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