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Old March 1st 07, 03:58 AM posted to
Pat Cook Pat Cook is offline
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First recorded activity by RadioBanter: Feb 2007
Posts: 15
Default RFI from Switched power supply

Hi everyone:

"Mike Andrews" wrote in message
On 28 Feb 2007 14:30:08 -0500, Richard Crowley wrote
in :
wrote ...
I have the (incredible fast and reliable) Verizon fiber optic into the
house for my internet connection. So far so good. However at the
access point there is a battery backup unit for the fiber-Copper
converter. This battery unit is kept charged by a powersupply that
makes an ENOURMOUS amount of RFI that radiates onto the (15 feet) lead
into the unit and from there into the shack. (S6)

Does anybody have any suggestions on how to silence this? Or... a
suggestion for a cheap and 'quiet' powersupply? (It's output is a
regular 12v)

Seems to me that their power supply is interfering with a licensed
service, and that it's Verizon's problem to solve. In addition, if
you do anything to their hardware, however well-intentioned and
skillful you are, you're giving them an excuse to blame any of your
future problems on you.

I'm afraid I have to respectfully disagree Mike.

While it's EASY to blame Verizon and accuse them of interfering with a
licensed service, you're forgetting one thing. Their technicians, just like
that of any major broadband provider (Be it Verizon, Time-Warner, Comcast,
QWORST, etc),.ARE NOT trained to handle Ham Radio Operators as customers nor
are they trained to customize the installation so it doesn't interfere with
Amateur Radio. They are only required to troubleshoot (Or at least attempt
to) problems with the equipment and/or anything it's connected to. If no
problems exist within the equipment or anything it's connected to, then the
problem(s) lie with the Ham station itself.

That can only be corrected by the Ham.

Richard....Did you do a full diagnostic on your station to see if the
problem might somehow be in your Ham equipment that might be receiving
excessive amounts of RF, thus causing the problem?

At least they *have* a battery backup for their FIOS.

This may be true Mike, but as I said IF the problem is not with the
provider's equipment and/or anything it's connected to, then Richard is the
one with the problem and only he can solve it. Verizon can't do a thing
about problems with his Ham station because, again assuming there are no
problems with Verizon's equipment or anything it's connected to, they're not

Just my $.02 worth

Cheers & 73

Pat Cook, KB0OXD
Denver, Colorado