[Elecraft] RE: KRC-2 6 TRN band Info needed

Mike Lewis k7mdl at hotmail.com
Sat Apr 23 16:48:06 EDT 2005


Dave Asked:
<....>
  I would like to have some way to control more than the three bands 
available now.
<....>


Hi Dave.

If you are using any Elecraft transverters then the KRC-2 is not needed, 
saving some of the KRC-2 positions for the other transverters.  In your 
case, I think you are connecting to 903 and up though so you need all 
non-Elecraft transverters in all TRN positions - TRN1 through TRN 6 to 
control external gear.

For this, the 3 KRC-2 transverter outputs can be placed in to a binary 
output mode supplying 0-7.  This will require you wire up a 3 to 8 line 
decoder (like a 74HC138) and probably an octal driver (I like ULN2803 
myself) if the loads are not TTL/CMOS logic.   The same configuration option 
is available for the ACC outputs to if I recall.    There is enough space 
inside the KRC2 that I was able to put a small board inside the case.

There is also a new configuration utility posted that may allow some other 
options, but I have not looked into it yet since my existng setup is serving 
my needs as is still.

73,

Mike Lewis
K7MDL
Grid Locator CN87xt
Member of Pacific Northwest VHF Society #C96 (www.pnwvhfs.org)
Member of Microsoft Amateur Radio Club (www.microhams.com)
Visit the K7MDL Amateur Radio Pages web site at 
http://mysite.verizon.net/michael_d_lewis/index.html
Elecraft K2 #2633
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