[Elecraft] K3 with 2m tvtr - power control feature request

Graham Kimbell g3tct at g3tct.co.uk
Thu Jul 6 10:13:30 EDT 2017


I have a K3 (old style) with internal 2m transverter that I want to use 
to drive a  microwave transverter.  There are a few issues with the 
output power -

    * the max output is supposed to be 10W, but measures 7W even after
      calibration - seems wrong but I can cope with this
    * the minimum power is 5W but should be down 10dB on the max, ie
      0.7W.  This is a problem because I need about 1W to drive the
      microwave tvtr.
    * the XV config that allows setting the 28MHz input to the tvtr has
      been checked and is exactly the 1mW (0dBm) default.  With the
      power control set to minimum it measured -7dBm.

So it appears that the internal 2m xvtr has too much gain, and there 
does not appear to be any way to reduce the power output below 5W.  Is 
there any chance of making this possible?

I have a friend with a K3S with the same difficulty, so it seems to be a 
common feature.

Graham


More information about the Elecraft mailing list