jks

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jks
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  • GPS Admin screen

    v1.60, to be released tomorrow, will fix a GPS bug that I finally understood today. Apparently, since v1.38 the GPS acquisition process has not been restarting after active users disconnect like it's supposed to. That will lead to the situation where the admin GPS page says "acq yes" (instead of "acq paused"), but there is no refresh icon shown in the "acq" column next to an incrementing PRN as is typically the case. The satellites that are already acquired and being tracked will be be fine until they drift out-of-range and are dropped. So eventually the GPS page will show nothing even though new satellites should be getting acquired.

    M0TAZWA2ZKDKA7U
  • GPS Admin screen

    v1.60, to be released tomorrow, will fix a GPS bug that I finally understood today. Apparently, since v1.38 the GPS acquisition process has not been restarting after active users disconnect like it's supposed to. That will lead to the situation where the admin GPS page says "acq yes" (instead of "acq paused"), but there is no refresh icon shown in the "acq" column next to an incrementing PRN as is typically the case. The satellites that are already acquired and being tracked will be be fine until they drift out-of-range and are dropped. So eventually the GPS page will show nothing even though new satellites should be getting acquired.

    M0TAZWA2ZKDKA7U
  • V1.57 lost link to sdr.hu

    Will be fixed in v1.58 going out at 0200Z.

    WA2ZKD
  • received signals delay between "analog"_RX vs KIWI_SDR vs SDR_IQ_RFSpace

    The audio delay (lag) is a consequence of delivering buffered web audio over the Internet. WebSDR is better in this regard due to the advanced techniques they use. It is possible we might match them sometime in the future but it would take a lot of work. Their current method is proprietary.

    The KiwiSDR is not designed to be a ham radio QSO receiver with associated performance. It is a "shortwave receiver" class device with limited specifications from use of a 14-bit ADC, relatively low ADC clock frequency, lack of a better RF front-end, no direct IQ output etc. But it is designed to be self-contained, Internet enabled, multi-user and relatively inexpensive given its capabilities. A lot of this is explained in our design document, which is now somewhat out-of-date: https://dl.dropboxusercontent.com/u/68809050/KiwiSDR/KiwiSDR.design.review.pdf

    ic8pof
  • static ip does not change

    Yeah, those fancy "state-full" deep packet inspection routers must be a headache. Especially when they do the wrong thing on traffic you want to get through. Fortunately I've never had to deal with them.

    WA2ZKD