M0TAZ

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M0TAZ
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  • Tell us about your station!

    M0TAZM0TAZ
    OK guess that's me next then.

    Location residential, suburb of London UK
    Antenna - Wellbrook Loop @6m
    Overload from MW stations around 25 miles away, mitigated by rotating the active loop.
    Linear power supply picked up from a rally
    Ferrite cores placed on anything I can find
    50 Meg fiber connection.
    Need to place KiwiSDR in a metal box

    Issues to resolve, noise floor raised around 3.5 MHz
    Intermittent SMPS noise (not in my property)
    Intermittent noise (local railway)

    Performance seems  quite good but local noise is limiting factor on some freq. 

    Works quite well on 472KHz WSPR

    www.m0taz.co.uk
     

    WA2ZKD

  • Active antenna supply ?

    M0TAZM0TAZ
    You may find this interesting

    f1jek

  • Suggestion and comments on GPS please [resolved, see list of improvements]

    M0TAZM0TAZ
    OK, an update for the group. The GPS issue is mainly fixed now, these are the steps I needed.

    1/ Remove GPS patch from the puck, replace coax with something double screened.
    2/ Attached the braid and shield of the puck can to a metal plate 40 x 40 cm
    3/ Elevated this in the air to provide some clearance for house/trees/fences/local clutter

    Each time I did one of the above it got better, and I hope its now mostly fixed.




    WA2ZKDKA7ULX1DQ

  • Suggestion and comments on GPS please [resolved, see list of improvements]

    M0TAZM0TAZ
    OK, an update for the group. The GPS issue is mainly fixed now, these are the steps I needed.

    1/ Remove GPS patch from the puck, replace coax with something double screened.
    2/ Attached the braid and shield of the puck can to a metal plate 40 x 40 cm
    3/ Elevated this in the air to provide some clearance for house/trees/fences/local clutter

    Each time I did one of the above it got better, and I hope its now mostly fixed.




    WA2ZKDKA7ULX1DQ

  • Suggestion and comments on GPS please [resolved, see list of improvements]

    M0TAZM0TAZ
    OK, an update for the group. The GPS issue is mainly fixed now, these are the steps I needed.

    1/ Remove GPS patch from the puck, replace coax with something double screened.
    2/ Attached the braid and shield of the puck can to a metal plate 40 x 40 cm
    3/ Elevated this in the air to provide some clearance for house/trees/fences/local clutter

    Each time I did one of the above it got better, and I hope its now mostly fixed.




    WA2ZKDKA7ULX1DQ

  • Suggestion and comments on GPS please [resolved, see list of improvements]

    M0TAZM0TAZ
    I was so happy with the puk on a metal plate I decided to pick up a decent GPS antenna from ebay. HUBER+SUHNER 1315.17.0008 1575MHz 34dB N female gps antenna antenne Aerial (ebay search terms)
    This is now coupled to a short length (circa 6m) of LMR400. That really is the best I can do now, short of re-locating the antenna on the roof. The GPS antenna was £15 delivered from China, and it would seem to be the real deal.

    WA2ZKD

  • GPS fixes diminish [fixed in v1.218]

    M0TAZM0TAZ
    Could it be that TDoA has focussed peopled attention on GPS fixes, this has further highlighted the issue. I never paid much attention to GPS before TDoA, now I check it every morning :-)
    Powernumpty

  • GPS fixes diminish [fixed in v1.218]

    M0TAZM0TAZ
    Checking back after 38 Hrs and I'm still showing 12 stats. Early indications look good.
    WA2ZKD