G8JNJ

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G8JNJ
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  • More GPS Problems - Damaged hardware?

    Some further notes for anyone who may pick up this thread at a later date and wish to copy this information.

    If you wish to split the GPS signal from the antenna to feed multiple KiWI's.

    Do not attempt(more)
    WA2ZKD
  • Wellgood balanced loop amplifier, (Wellbrook clone).

    Hi John,

    Build the LZ1AQ instead.

    It's a better performer and easier to construct, plus I'm not 100% convinced about George's reverse engineered circuit, especially the transformer windings and(more)
    KA7U
  • QRM: Radio China International - From Albania - OV +++

    Hi Giulio,

    Adding a series tuned notch filter across the KiWi RF input will help reduce the problems on 7345KHz.



    These values give the bets compromise between notch depth and attenuation on the(more)
    WA2ZKDIZ3EAWG0LUJ
  • Last Spectrum persists when all signals removed [fixed in v1.279]

    Hi John,

    Brilliant :)

    Makes spotting and determining the amplitude of fleeting signals much much easier.



    Thanks for this (and all the other stuff too).

    Regards,

    Martin - G8JNJ
    KA7U
  • On-Line frequency database

    Copied from UDXF@groups.io

    "You may or may not be aware that the ITU monitoring stations publish their
    listening logs on their public website:

    https://www.itu.int/en/ITU-R/terrestrial/monitoring/Pages/
    (more)
    G0LUJWA2ZKDHB9TMCKA7U