[Elecraft] Upgrading K3 s/n 11xx to operate on the 472KHz

Jack Colson jcolson7 at tampabay.rr.com
Sun Oct 1 18:58:45 EDT 2017


What needs to be upgraded or added to a stock K3 s/n 11xx to receive/transmit on 472KHz?
Thank you,
73,
Jack, W3TMZ


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