DZKIT Sienna at 70 WPM

by Chuck Broadwell, W5UXH

Jul 30, 2015

A few years ago I built a Sienna for K6KX (Fred), a long story that I will not go into.

The past few days Fred has been testing it on our sked.  Tonight I did a recording that can be downloaded from this link:  Sienna @ 70 wpm  I tested the link on another computer and think it will work and allow anyone to download.  The file is about 30 MByte.

If anyone is interested in hearing some portion, if you use a program like Audacity where you can see and select any segment of interest, you will see the steady low amplitude sections that are my K3 sidetone and the stronger QSB affected sections that are Fred like this:

I think Fred was at 70 wpm throughout.  I was probably at 65 wpm initially and 70 wpm later.

The rig actually sounds quite good to my ears and the QSK is plenty fast enough.

Chuck, W5UXH

  • up

    Chuck aa0hw

    Here is an online version of this QRQcw HF QSO:

    Aug 3, 2015

    • up

      Joe

      It sounds good to me as well. Doesn't the Senna use a separate transmitter and receiver rather than a typical transceiver design? I would guess separating the receiver from the transmitter would make for better QSK with less shared circuitry to switch back and forth.

      Joe W3GW

      1

      Aug 6, 2015

      • up

        Petr Ourednik

        It sounds good to me as well. No artifacts hearable. Anybody else using Sienna?

        3

        Jun 23, 2020