Eric:I am a big believer in UPS's that will run on an external battery. Or I
modifythe old UPS's to run on a battery. Stoplots of spikes and other nasty
things on power lines. My K line run all on UPS'sand with external batteries.
AN ALWAYS DISCONNECT ANTENNAS. I use polyphasers too but I had several of them
burn out caused by lighting an surewouldn't have wanted to have had anything
hooked up to them when the blew.
Very good advice Eric.Bill Hudson, W0WFHex. cellular and two way field
tech.Linn, Mo. 65051
From: Eric Ross <kb...@evross.com>
To: elecraft@mailman.qth.net
Sent: Thursday, October 8, 2015 2:35 PM
Subject: Re: [Elecraft] Unplugging the radio to protect it
On my computer equipment, including routers/switches, I have become a
very strong advocate of putting a full UPS between the wall and the
device. When I say full UPS I mean one that is always sourcing the
device from the battery and not directly being fed from the primary
source. The drawback of this is that they use a step-wise approximation
of AC on the output. I haven't tried it directly with my K3 to see
what noise gets through, but my computer, which is right next to it is
not emitting anything worth noting. This way both power and network are
relatively protected coming into my computers. I don't have any phone
lines connected to the computers either. All my voice via the computer
is through the network. The only route into the K3 is then the primary
power supply and the antenna. I have also plan to put a battery between
the power supply and the radio just for backup power needs as well which
will then narrow it down to the antenna as the primary energy source.
Eric
kb7td
On Thu, Oct 8, 2015, at 12:34 PM, Eric Ross wrote:
> On my computer equipment, including routers/switches, I have become a
> very strong advocate of putting a full UPS between the wall and the
> device.
> When I say full UPS I mean one that is always sourcing the device from
> the battery and not directly being fed from the primary source. The
> drawback
> of this is that they use a step-wise approximation of AC on the output.
> I haven't tried it directly with my K3 to see what noise gets
> through, but my computer, which is right next to it is not emitting
> anything worth noting. This way both power and network are relatively
> protected coming into my computers. I don't have any phone lines
> connected to the computers either. All my voice via the computer is
> through the network. The only route into the K3 is then the primary
> power supply
> and the antenna. I have also plan to put a battery between the power
> supply and
> the radio just for backup power needs as well which will then narrow it
> down to the antenna as the primary energy source.
>
> Eric
> kb7td
>
> On Thu, Oct 8, 2015, at 12:02 PM, Pierfrancesco Caci wrote:
> > >>>>> "Elecraft" == Elecraft K3 <k...@hollywoodtitle.com> writes:
> >
> >
> > Elecraft> Hmm, this thread has got me wondering if a fiber optics
> > Elecraft> telecom/tv/internet link provides some degree of
> > Elecraft> protection against distant lightning strikes.
> > Elecraft> Seems like it should.
> >
> > Yes, but the problem is your internal wiring. Even if you invest in a
> > switch with optical ports (they come cheap on the used market), and you
> > put an optical port in your main desktop PC, there are a lot of devices
> > that only have copper. What killed my access point was a ligthning strike
> > at
> > some distance coupling to a ~4 m long ethernet cable connecting the AP
> > to the switch.
> >
> > Incidentally, fiber would help get rid of those nice carriers polluting
> > 12 and 10 m.
> >
> > Pf
> >
> > --
> > Pierfrancesco Caci, ik5pvx
> > ______________________________________________________________
> > Elecraft mailing list
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> >
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> > Message delivered to kb...@evross.com
>
>
> --
> Eric Ross
--
Eric
kb7td
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