[RFI] Computer cases and RFI

[Jim P]

> I have YET to find an old ham radio program I ...

An assumption that it's "an old ham program".

Suffice it to say that it involves a hardware key for the
S/W, special hardware and since the original S/W runs
fast enough under DOS at 33 MHz, it isn't worth the time
to make any changes to a stable, reliable, productive,
platform that I might only require a few hours at a time
every couple of months.

So far that old 386 has outlasted the last two Wintel
platforms (I'm still using the 3rd, right now) that were
the 'mainstay' of every day computer life, so, were I to
have migrated each time, think of the wasted effort
each time, not to mention the fact of the matter of
having to accomodate that albatross of a S/W key and
also having to get that aditional H/W intergrated into
the desktop arrangement 'just to get the job done'.

Short story: Not all of us run these Wintel boxes just for
ham apps and its just easier to run the old PC as she sits.

Jim P //  WB5WPA  //

----- Original Message ----- 
From: "AA6DX - Mark" <aa6dx at cox.net>
To: "Jim P" <jvpoll at dallas.net>; <rfi at contesting.com>
Sent: Monday, January 02, 2006 6:45 PM
Subject: Re: [RFI] Computer cases and RFI


> Having read that, I have YET to find an old ham radio program I cannot run
> in XP .. bet there are some, but, I have been able to get any of my old
> "stuff" to perform just swell in my XP machines .. worky worky .. Mark,
> AA6DX
>
> ----- Original Message ----- 
> From: "Jim P" <jvpoll at dallas.net>
> To: "Jim Brown" <jim at audiosystemsgroup.com>; "RFI List"
<rfi at contesting.com>
> Sent: Monday, January 02, 2006 4:39 PM
> Subject: Re: [RFI] Computer cases and RFI
> I have a 33 MHz 386 that has certain apps on it
> that I can't migrate easily to a Pentium class
> machine, and whenever I have to 'run' that machine
> I am reminded how poor the inherent 'shielding' is
> by the 'jamming' that machine does to CH 11 TV
> and even an 800 MHz frequency that the local trunked
> system uses. The layout and inter-chip wiring in those
> days was gross, coupled with physically huge leaded
> parts - compared to today's PCs with much improved
> board layouts, BGA technlogy, judicious use of interlay
> ground planes and apparently much more knowledgeable
> use of multilayer boards which provide an environment
> suitable for the stable, clean, non-glitched operation
> of a 533 MHz front side bus.
>
> Jim P   // WB5WPA  //
>
> ----- Original Message ----- 
> From: "Jim Brown" <jim at audiosystemsgroup.com>
> To: "RFI List" <>
> Sent: Monday, January 02, 2006 5:22 PM
> Subject: Re: [RFI] Computer cases and RFI
>
>
> > On Mon, 2 Jan 2006 17:36:24 -0500, Martin, AA6E wrote:
> >
> > >When I have troubles, it's always with the external
> > >cabling.  (Without chokes, external wiring can be an efficient
> > >radiator - comparable in length to a wavelength.)
> >
> > Oh -- it's the fault of the cable that the computer puts the RF
> >
>