[UK-CONTEST] USB keyboards and RFI?

Peter Day microwaves at blueyonder.co.uk
Tue Oct 28 11:15:23 EDT 2008


Alex GM3ZBE wrote:
> Hi
> I am going to buy a USB keyboard for use with my laptop, anybody got one 
> that they know doesn't suffer from RFI or indeed cause RFI?
> Alex

Hi Alex..

I use a cheap (£14.99 ?) 2.4GHz wireless keyboard and mouse that I 
bought at Netto (!) some time back. It's made by AGK and until then I 
had some problems with RF getting onto the cables with an external USB 
keyboard... mainly on 80m (and this was with all coax fed antennas and 
running full legal limit on all bands).  I have no problems whatsover 
now and the antennas remain unchanged.

I think similar keyboards are available at Maplin, etc.

73

Peter G3PHO




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