At PI4ZLD we use a ethernet network troughout the club building.
So far we didn't have problems with any interference.
At work I once tested the radiation of the coax cables and UTP cabling
system.
We didn't see any noise coming from the ethernet netwerk, not with coax
and not with UTP cabling. The only problem were the computers.
It would be nice of someone could give pointers to serial port emulators
for ethernet, because every contest we have to build a parallel network
with serial cables which produce a lot of HF noise.
Henk
Henk Remijn
Operator of PI4ZLD.
Email: hremijn@zeelandnet.nl
On Tue, 23 Jan 1996, Hatcher Darren wrote:
>
> Hi All,
>
> Correct me if I'm wrong here, but there are some things to bear in mind with
>
> ethernet in an environment of RF. The two that come to mind are:
>
> o The ethernet cables may be resonant on some bands and
> hence radiate noise (probaly radiate anyway)
>
> o RF will probably get into the cable (the ethernet cards may not
> like this)
>
> Which is why some have gone over to useing Fibre Optic networks with their
> logging applications (either out the Serial port using RS232 fibre links,
> or using fibre-based ethernet). For your average station, this is not a
> very cheap option. FYI, in the UK, I often see prices of around 100 UK
> pounds for a single fibre optic RS232 tx/rx.
>
> Anyone got any real experience of fibre-based CT networks out there?
>
> Darren Hatcher
> G0WCW
> dhatcher@bibbway.bt.co.uk
> ----------
> From: reisert
> To: ct-user
> Subject: CT networked via Ethernet ???
To: <ct-user@contesting.com>
> Date: 23 January 1996 09:56
>
> At ESRAC, the Eindhoven Student Radio Amateur Club PI5EHV-PI4TUE-ex-PI50TUE
> we have our PC's networked via Ethernet. I remember some discussions on
> this reflector about CT and ethernet. Is it possible in some mysterious
> way to network CT via ethernet ? Perhaps it's a good idea to consider this
> option for future releases since ethernet is getting more and more popular
> as a means to network computers at home. I can only think of pro's using
> ehternet instead of RS232 lines.
>
>
> 73 de Aurelio
>
>
> ***********************************************************************
> * Aurelio M.M. Bellussi, student at the University of Technology in *
> * Eindhoven, the Netherlands *
> * Licensed Radio Amateur Operator, Callsigns: PA3EZL, AA2WH *
> * Also member of Radio Clubs: PI4TUE/PI5EHV, PI9IRC, PI4VLB and OT5A *
> * *
> * E-mail address: a.m.m.bellussi@stud.tue.nl OR *
> * esrac@stack.urc.tue.nl *
> * Amateur packet address: pa3ezl@on5vl.#lg.bel.eu *
> ***********************************************************************
>
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>
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>
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