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    Are there independent RX/TX scale settings?

    Member ✭✭
    in SmartSDR for Windows

    Hi All

    This question applies to both Maestro and SmartSDR - Rig here is 6600M.

    I want to be able to set the dynamic range for the vertical scale (spectrum) and the intensity scale (waterfall) independently on RX and TX.

    Problem: When I set the scale for best visibility for very weak signal work on RX - e.g. on 6M meteor scatter I use a relatively compressed scales of about 40dB dynamic range - when TXing both the spectrum and waterfall become essentially saturated and useless for monitoring.

    To solve the problem I would like the dynamic range of the display on RX to be compressed, say at 40dB, while on transmit I'd like the dynamic range of the two displays to be more like 100-120dB

    What say all?

    Thanks!

    Chuck

    NJ6D

    Answers

    • Member, Super Elmer Moderator

      Hi Chuck, I think that you can get what you are after by using two panadapters. Use Full Duplex (FDX). Set the first one to your preferred RX settings and the second one to show your TX signal. The second pan doesn't even need an antenna to get enough signal to see what you are sending. The first pan will be the TX slice.

      There are some very good videos on YouTube by Mike, VA3MW and Ken, NM9P about using FDX to look at your TX signal.

    • Member ✭✭

      Len, thanks!

      I'll look up the videos and see. It seems to me that using a second pan adapter is a work around. My old Flex5000A sampled the TX RF though an attenuator pad, this signal subsequently was routed back into the RX chain during TX and displayed. Not sure what the 6600/8600 series does.

      I am not sure there is a way to get a second pan adapted up on the built in Maestro display of the 6600M. Even if there was it seems inefficient use of screen real estate. I would have thought accurate TX monitoring would have been the default setup.

      Best,
      Chuck
      NJ6D

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