[Elecraft] (OT) Threat to 30 meters

[DYARNES at aol.com]

In a message dated 4/4/2005 8:19:17 PM US Mountain Standard Time,  
lacosta at bcpl.net writes:

If you  use 30 meters for CW there may be an unpleasent surprize on the  
horizon.

I've posted information about it at www.zerobeat.net

If  you operate CW at low poer levels, you really should read the  material.






Could you be a little more specific please?  
 
Dave W7AQK