[Elecraft] USB Noise core gets hot when operating FT*?

donovanf at starpower.net donovanf at starpower.net
Mon Apr 20 13:36:26 EDT 2020


With your antenna that close, are you sure you're not exceeding human 
body RF exposure requirements? 


73 
Frank 
W3LPL 

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

From: AE4PB at carolinaheli.com 
To: elecraft at 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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