[RFI] Ferrite "Loss Factor @Frequency"

[Kimberly Elmore]

Thanks, Ed! 
I have Jim's document (which is excellent), but I had never seen in it the discussion of Fair Rite's use of "loss factor." I do, however, understand more or less the losses that can be inuced by ferrites. K1FK sent me a short PDF that explains where "loss factor" comes from and derives it, so I think I have a better idea of what it is now. 
73,
Kim N5OP

      From: Ed K0iL <eddieedwards at centurylink.net>
 To: rfi at contesting.com 
 Sent: Sunday, June 18, 2017 9:36 PM
 Subject: Re: [RFI] Ferrite "Loss Factor @Frequency"
   
Except you didn't repeat the referral link.

So here's the page with all the links:
http://k9yc.com/publish.htm 

Kim, 
You might need to contact Fair-rite about their units and symbols they used.  Might be a faster route to the info you seek.

73, de ed -K0iL

-----Original Message-----
From: RFI [mailto:rfi-bounces at contesting.com] On Behalf Of Jim Brown
Sent: Sunday, June 18, 2017 9:04 PM
To: rfi at contesting.com
Subject: Re: [RFI] Ferrite "Loss Factor @Frequency"

Hi Kim,

Several times, I've referred questions like this to my RFI tutorial.  I spent years learning it, and months writing it up. I'm not going to repeat it here. Instead, I'll repeat the referral.

73, Jim K9YC

On Sun,6/18/2017 6:20 PM, Kim Elmore wrote:
> As I was perusing type 31 material the Fair-Rite web site, I ran 
> across a a material characteristic that is new to me: "Loss Factor @ 
> Frequency." For type 31 material, the units are in 10e-06 MHz, the 
> symbol is Tan δ/ µi  and it's 20 @ 0.01. How do I interpret this 
> characteristic?
>
> Kim N5OP
>
>

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