G8JNJ

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G8JNJ
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  • Seeed Metal case and GPIO connector

    G8JNJG8JNJ
    Hi Glen,

    I think for me the main issue is that the interconnecting cables are not all bonded to the case at the point of entry with low impedance connections.

    So RF currents will flow via separate… (more)
    HB9TMC

  • More GPS Problems - Damaged hardware?

    G8JNJG8JNJ
    Hi Chris,

    I use passive satellite TV splitters with an inbuilt DC block (or steering diodes) on all but one port.

    This sort of thing with suitable adaptors.



    I use a two way to feed two more two ways, so… (more)
    ChrisSmolinski

  • TDoA background maps not loading

    G8JNJG8JNJ
    >
    >John, is it possible to have the basic (landmass boundaries) maps that TDoA used when I first got my Kiwi last summer?
    >Presumably the multiple TDoAs I do when I TDoA in order to see the… (more)
    Powernumpty

  • Advice on sharing RX antennas with 3 SDRs in the most effective way

    G8JNJG8JNJ
    Be careful regarding some of the commercial active splitters. Their IMD performance is not that good as they often use MMIC chips that can only achieve modest performance.

    For example the Elad unit… (more)
    PowernumptyHB9TMC

  • SAQ 17.2KHz - 30th June 2019

    G8JNJG8JNJ
    Good signals into the UK this morning from SAQ on 17.2KHz using an historic alternator transmitter

    https://alexander.n.se/?lang=en

    15dB above the noise floor into Farnham WEB SDR http://farnham-sdr.… (more)
    PowernumptyKA7USWLJO43