[Elecraft] 472KHz/500KHz

[Edward R Cole]

Dom, M1KTA, writes: "Anyone tried the K3 option with a KX3 on 472/500KHz yet?

http://www.elecraft.com/TechNotes/k3qtx_v2_pa3cw.pdf

Will be trying but interested to hear anyone's success/failure stories.
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Dom,

I have been running my K3/10 on 495-510-KHz for over a year.  I run 
in the TEST mode to produce 0.1mw drive to my converted 100w NDB 
aircraft beacon transmitter.  I removed the xtal osc and drive the BP 
filter and 2N2222A driver.  Details on my website:
http://www.kl7uw.com/600m.htm

I run either CW or WSPR near to 495-KHz.  MY K3 will not tune below 
490-KHz, so I am hopeful to use my KX3 on 472-478 KHz "630m" band 
when the FCC approves ham use.  I am currently licensed with the ARRL 
Experimental Group WD2XSH to run up to 20w ERP.  I achieve 4.125w ERP 
with 100W RF output on my 43x122 foot inverted-L.  I usually monitor 
using my SDR-IQ, but receive with either it or the K3/10.

73, Ed - KL7UW/WD2XSH-45