[Elecraft] K3 - need a desktop keypad

[Bill W2BLC]

In the past I had several rigs with desktop keypads used for direct 
frequency entry - very handy and easy to use.

Now, I would like to see a direct frequency entry keypad for the K3 that 
does NOT require a computer. Using the serial port of the K3, this 
should be relatively easy to accomplish. This would allow me to use one 
less computer program for the K3 - specifically, HRD - which I only use 
for frequency control by use of favorites.

Thanks,

Bill W2BLC K-Line (???)