Definitely 

You can prove it to yourself by connecting a dummy load to your K3 


73 
Frank 
W3LPL 

----- Original Message -----

From: ae...@carolinaheli.com 
To: donov...@starpower.net, elecraft@mailman.qth.net 
Sent: Monday, April 20, 2020 5:52:57 PM 
Subject: RE: [Elecraft] USB Noise core gets hot when operating FT*? 



Are you saying that’s what’s causing the ferrite core on the USB cable to heat 
up? 


Jerry Moore 
Cell: 803-431-1870 



From: donov...@starpower.net <donov...@starpower.net> 
Sent: Monday, April 20, 2020 1:52 PM 
To: elecraft@mailman.qth.net 
Subject: Re: [Elecraft] USB Noise core gets hot when operating FT*? 


You're safe, but obviously your K3 isn't... 
----- Original Message -----


From: ae...@carolinaheli.com 
To: donov...@starpower.net , ae...@carolinaheli.com 
Cc: elecraft@mailman.qth.net 
Sent: Monday, April 20, 2020 5:40:26 PM 
Subject: RE: [Elecraft] USB Noise core gets hot when operating FT*? 
I’m not sure, but, it’s a good point. I’m only running 50Watts. 



From: donov...@starpower.net < donov...@starpower.net > 
Sent: Monday, April 20, 2020 1:36 PM 
To: ae...@carolinaheli.com 
Cc: elecraft@mailman.qth.net 
Subject: Re: [Elecraft] USB Noise core gets hot when operating FT*? 


With your antenna that close, are you sure you're not exceeding human 

body RF exposure requirements? 



73 

Frank 

W3LPL 



From: ae...@carolinaheli.com 
To: elecraft@mailman.qth.net 
Sent: Sunday, April 19, 2020 12:46:55 AM 
Subject: [Elecraft] USB Noise core gets hot when operating FT*? 

Today I was working a digital mode (FT8) and lost connection to the radio. I 
cycled power with no success. On reseating the USB connection at the 
computer I felt the ferrite core was HOT. The cable didn't feel hot at all. 
I'm using a 20m hamstick in the office as my antenna. I shut everything down 
to cool off. Afterwards everything seems to be working correctly. 

Any ideas? 

Tnx and 73 

Jerry D. Moore 

AE4PB 

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