[Elecraft] K3 and Herc II

[Joe Subich, W4TV]

The 311 appears to be a set of level converters to convert the
"one open collector per band" output of the Orion/Orion II to
the +12V select lines (160/80/40/20/17-15/12-10 M) for the
the Herc 2.

The K3 does not provide decoded band data - its output is Yaesu
format BCD.  In order to use the K3 with TenTec 311/Herc 2, it
is necessary to decode the BCD data to "open collector per band."
The simple solution for that decoding is the W9XT "BCD-10" board:
http://www.unifiedmicro.com/decoder.html.  You will need to supply
your own case, power supply (or borrow +12V from the K3) and the
matching connectors for both the 311 and K3 ACC jacks.

73,

    ... Joe, W4TV


On 9/6/2010 3:45 PM, Charles Tifft wrote:
> Sorry if this has already been asked but I am new to the Elecraft
> reflector and could not really find an answer in the archives. Has
> anybody used the Ten Tec Herc 2
> and the 311 band data interface with the K3 for auto band changing of
> the Herc 2? Thought maybe I could save myself some time if someone there
> has already been down this road.
> Thanks and 73's
> Chuck
> W6RD