I have an IBM laptop model T43 - Not a trace of RFI anywhere - Broadcast band,
HF, or VHF.
--
Ernie, k0occ
Atlanta, GA
-------------- Original message --------------
From: Fred Stevens K2FRD <k2frd@mac.com>
> Yes. I have three laptops (old Dell Latitude 300, older Mac PowerBook 1400,
> newer Mac iBook 900 [main computer]). All three are RFI noisy while listening
> on
> HF when I have them plugged into commercial power. For this reason, I use
> them
> on battery power only (lighter plug type DC to DC converters for all of them)
> which cuts down, but doesn't eliminate the noise. If it gets too bad, I'll
> turn
> them off. Exception: I use the Dell for digital comms, mostly PSK and it's
> the
> quietest of the bunch. Most of my problems are likewise on HF and mostly on
> 20m
> (of course, the most active daytime band). Drives me up the wall.
>
> 73 de Fred K2FRD
>
> At 8:29 PM +0100 29/5/07, William Conlan wrote:
> >Hello guys,
> >Has anyone experienced noise interference from Laptop PSU when listening
> (decoding) HF Signals.
> >
> >Its not such a big problem on VHF/UHF for some reason.
> >
> >Many thanks in advance,
> >
> >Best Regards,
> >
> >Bill.
> >_______________________________________________
> >RFI mailing list
> >RFI@contesting.com
> >http://lists.contesting.com/mailman/listinfo/rfi
>
>
> --
> 73 de Fred Stevens K2FRD, VO2FS
> http://homepage.mac.com/k2frd/K2FRD.html
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