-=> On 02-23-98  19:04, Donald Bowers said to John Stanley,<=-
-=>"About RFI...,"<=-
 
Hi, John;
 
 JS>I am causing interference to a Sony Play-Station, whilst only on 50Watts 

 JS>10meters in SSB mode.  Now, I have done every thing in my power to reduce
 JS>interference by purchasing TVI filters for the effected Televisions, 
hich
 JS>has reduced the interference to nul.  However, I still manage to 'crash' 
or
 JS>lock up their Play Station games Console.
 
 Cheap junk...
 
 JS>The question is...Since the Sony Play Station is made of plastic and has 
no
 JS>chance of suppressing RFI as there is no metal case or any shielding what 
so
 JS>ever, is it therefore the owners responsibility to shield the effected
 JS>device?
 
Yes, it is the fault of the game maker for making their stuff as cheaply
as possible... however _IF_ you can get their permission, (and a signed
release that they will not hold you responsable for any future malfunction
as long as it's working when you return it), there are a couple of things
which you can do that _MAY_ help:
 
1)  SHIELDING: Take the game out of it's case and rubber-cement aluminum
    foil to the inside of the case, making SURE that it does not cause any
    short circuits when you reassemble it.  (Make sure, however, that the
    foil IS connected to the game's ground).  It MAY also help to give the
    same treatment to the plug-in cartridges.
 
2) FILTERING: Get some ferrite doughnuts and run ALL leads into/out of the
   case, (joystick, power and outout to the TV), through beads.  It may
   also help to bypass all leads between the doughnuts and the game's
   "guts" with 100 Pf, 250 Volt disc ceramic capacitors.  Bypass these to
   the game's ground.
...
 
 JS>I can't stand it when all the technical knowhow in the world won't cure a
 JS>simple RFI problem and believe me...I've tried them all!!!
 
Sometimes "simple problems" require "crowbar & sledgehammer" fixes...
I cannot guarentee that my suggestions will help, but they MAY make the
problem less, and they may cure it.  All I can guarentee is that it won't
hurt anything.  (The reason for the release is because if you so much as
TOUCH someone else's equipment, the next time it fails for ANY reason,
they are likely to say that it was caused by your "fiddling," even if it
was caused by lightning hitting the power lines or someone dropped it on
the floor and stepped on it.
 
 JS>There is only one thing left that may reduce the interference and that 
would
 JS>be to raise my antenna a little higher as currently it is (at base) 30 
foot
 JS>which is approx. 10 foot higher than the location of the Play Station...
 
Another 10 feet wouldn't make a noticable difference.
 
73 DE KB9QPM
   Ivy
 
 
 
... TVI? What TVI?
 
           --
 
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           ³  SysOp: Ivy's WALL BBS - 6 Networks 920-457-9255  ³
           ³             IMHO: 5 WPM for EVERYONE.             ³
           ³           KB9QPM/AE as of 11/19/97 :->>           ³
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