Elecraft Transverters
My setup/troubleshooting quest continues…..
Showing the bandpass filters inside of the the transverters.
I was have a problem getting the full 1mW (0 dBm) of drive from the K2+K60XV into the transverters. I was never seeing more than about .50mw (-3dBm). After some searching on the internet I saw a note that pointed me back to the Errata for the K60XV. Don the Elecraft mail list confirmed the detail.
R6 on the KAT6 board needs to be changed from a 47 ohm to 470 ohm resistor or the op-amp detection circuit may not give you the full 1mW of drive do to some interactions between the K60XV and KAT2 boards.
So I cracked open the K2…
I removed the top lid, the KIO2, K60XV, and KAT2 interfaces.
The KAT2 is actually made up of two boards so that need to be split apart to get good access to R6.
I had forgotten how much labor was invested inside the K2 case. It always makes me a little nervous popping the cover off as there are a lot of add-on modules in there some of which are attached to the top lid. The R6 change was very easy and the radio went back to together fine.
It appears that I am now able to get 1mW from the K2. So I am back to my original issue of figuring out why I can’t get the proper power out of the transverters. –arghhhhh.
73 de NG0R
