[Elecraft] 472KHz/500KHz

[Edward R Cole]

Did you read in that article how a KXV3 module is used in the K3 to 
bypass the high pass filtering used to protect the T/R PIN diodes? 
The KX3 has the same filtering, but no possibility for a KXV3 module. 
Therefore, the KX3 is not really usable below around 1500kHz.

If you want to get onto the 600m band with a KX3, you'll need to look 
at building a transverter.

73, Matt VK2ACL
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Matt and Dom,

I have actually listened below 500-KHz with my KX3 and though lowered 
sensitivity it still hears at these frequencies.  I think it will 
only require a Rx preamp to restore sensitivity.  I have not tried to 
transmit down there with the KX3, but it is my hope that is will 
work.  I can make a transverter (in fact I have one that I made with 
a SBL-1 mixer using my station 10-MHz REF OCXO as LO.  This enables 
running 10.472-10.510 MHz on the K3 in TEST mode.


73, Ed - KL7UW/WD2XSH-45