[RFI] Keyboard

[GaryK9GS]

A better idea would be to fix the RF getting into the keyboard in the first place.  That's not normal.
What kind of antenna are you using?  Does this happen on only some bands?  At any power level.


73,
Gary K9GS
-------- Original message --------From: dalej <dj2001x at comcast.net> Date: 3/3/18  9:32 AM  (GMT-06:00) To: Joe <nss at mwt.net> Cc: rfi at contesting.com Subject: Re: [RFI] Keyboard 
I’d use a #31 mix snap-on and wrap several turns though it.  I purchase mine from Mouser.  I don’t have the PN handy but if you need it let me know.  

Those from RS I don’t count on to do a good enough job.  

73
Dale, K9VUJ



On 03, Mar 2018, at 9:24, Joe <nss at mwt.net> wrote:

Is RF getting into a keyboard issue OK here, it is RFI in a way..

OK, Say you get RF into a USB keyboard. It just stops working and the only way to get it working again is a total re-boot.

I'm assuming the best option is ferrite beads on the cable.

Now question, where is the best placement of the beads. Keyboard end? Computer end?  BOTH?

I have two here, a small one where I could get one or two passes through the hole. ( it is a Radio Shack split thing )

and then a much larger one, also split,, but the hole is close to a inch ID. so I could do many turns.

What would be best to put where?

Joe WB9SBD
-- 
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
_______________________________________________
RFI mailing list
RFI at contesting.com
http://lists.contesting.com/mailman/listinfo/rfi

_______________________________________________
RFI mailing list
RFI at contesting.com
http://lists.contesting.com/mailman/listinfo/rfi