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Flex 6700 Preamp Setting with Transverters

John K4SQC
John K4SQC Member
edited September 2019 in SmartSDR for Windows
I am connecting a DEMI 1296 Transverter to my 6700 using the 144 MHz IF.  Every things works great and I am wondering about the sweet spot between transverter Rx gain setting and the Rx Preamp gain setting on the Flex.  Right now I have the transverter adjusted so there is a just perceptible increase in noise with 20dB of Flex preamp gain.  I don't own a signal generator that goes to 1296 so I can't do MDS testing  What have others found?  The setup worked well in the Jane VHF contest from EM85.  But you all know how it is - can I make it even better?

Answers

  • David-N5PSM
    David-N5PSM Member ✭✭
    edited September 2018
    There is an article/setup guide for the best setting for full duplex.  It was in the downloads section last I looked,,,,,,
  • WA6HTP - Juan Rivera
    WA6HTP - Juan Rivera Member ✭✭
    edited June 2019
  • John K4SQC
    John K4SQC Member
    edited September 2018
  • WA6HTP - Juan Rivera
    WA6HTP - Juan Rivera Member ✭✭
    edited June 2019
    The Kuhne transverter has no gain adjustment, so I can't comment on the interaction between the transverter and the flex.  The good news is that you can see the results in your waveform display.  I'd just adjust for the best S/N ratio once you have a signal to look at.  I'll have to do the same once I get a preamp installed and connected to an antenna.

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