Skip, CHU is still on the air. I often use the 3330 kHz frequency. Also 7850 
and 14670.

Can’t solve your mystery, though!

73,
Dave K1ZZ

Sent from my iPhone

> On Feb 2, 2023, at 7:59 PM, Fred Jensen <[email protected]> wrote:
> 
> OK, this one has me confused.  I was looking for CHU on 7850 or close, and 
> as I was tuning up from 40 m, I encountered a VERY strong signal around 75xx 
> or so which sounded like RTTY, at which point my K3 froze.  No control did 
> anything, including the K-Pod and the power switch, the very strong signal 
> just kept on blaring from the headphones, and nothing I could do could change 
> anything in the rig.
> 
> I killed the power supply, and turned it back on and the K3 came back up on 
> 7044 [where I previously been] when I powered it up.  It's repeatable, did it 
> multiple times.  K3 seems to be working fine otherwise  I have the general 
> coverage BPF, no sub-rx, and it doesn't seem to be mode-dependent ... tune 
> across this huge signal and everything freezes.
> 
> This does not seem to be a problem for me, just a mystery.  The signal that 
> triggers it is huge.  It's getting dark in the shack now [another totally 
> unrelated problem having nothing to do with Elecraft, K3, or my eyesight but 
> really annoying], I'll try tomorrow and see if it is still repeatable.
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
> PS:  I don't know if CHU is still on the air or if so, where.  Years ago it 
> was just above 7300 and very useful for those who did not have general 
> coverage receivers that could get to WWV.
> 
> 
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