[Elecraft] Rising current on Tx (K3)

[barry whittemore]

I had a similar problem and it was found to be some RFI getting into the power cable. I wound several turns of the power cable around a 2.5 inch ferite toroid and problem solved.

Barry

NF1O
 

> Date: Tue, 15 Apr 2014 16:00:35 +0100
> From: g4sgx at justfans.co.uk
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] Rising current on Tx (K3)
> 
> Apologies if this is covered before.
> 
> I've just noticed some new behaviour on my K3.
> 
> While on 10 RTTY chasing DX, I noticed the current indication on the PSU 
> rising during a long TX.
> 
> I switched to the current meter on the K3.
> 
> At the start is was about 15Amps (100W RTTY TX) but soon rose.
> 
> On a 20 second TX it rose to about 26 Amps (!) and the Hi Curr error 
> message came up on screen.
> 
> The rig USED to be OK for extended periods of RTTY.
> 
> I have not tried on any other bands.
> 
> 
> Can anyone explain this behaviour?
> 
> Iain G4SGX
> 
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