Tech Minds YouTube review questions #5
Questions from the Tech Minds YouTube review:
What would it take for this device in order to extend its range down to 1 kHz or even DC? I'm trying to monitor dirty electricity coming off my house's electrical wiring.
You should consider an active probe or magnetic loop feeding into a sound card for that kind of thing. The right kind of amplification/matching between the two will be needed. Then run one of the sound card SDR programs to get a spectrum.
The Kiwi receives signals down to 10 kHz (when the Russian Alpha navigation system is active, see: rsdn-20-beacons-reactivated) And has some sensitivity to 7 kHz. And I've seen some Kiwi VLF spectrums where you can clearly see 60 Hz harmonics above 10 kHz. It's quite amazing I think.
One question: if using on my home network, would there be the same latency as with online KiwiSDRs? I find that any I've used online have a delay of about a second or more between clicking on/selecting something and it actually happening. I'd find this annoying if using locally.
This is not documented, because it can cause more problems than it solves, but try adding to the URL: ?abuf=0.25 (or perhaps ?abuf=0.5 if you're getting audio drops as a result of having too little buffering). So something like my_kiwi:8073?abuf=0.25 or if you're using other URL parameters like f= my_kiwi:8073?f=7150usb&abuf=0.25 The abuf (audio buffer) parameter is specified in seconds and applies to the current connection only.
Question from a user: if I listen via PC everything works fine. If I go to the link with my Android smartphone this appears: Unable to reach the site. Why? Other.. KIWI sdr app is not available for my device
Don't know why your Android smartphones wouldn't be able to connect. I use Android tablets here to verify Android functionality.
The old KiwiSDR app for Android was removed from the Android store, but I saved a copy. See this thread: https://forum.kiwisdr.com/index.php?p=/discussion/comment/20578#Comment_20578
ET ships aka UFOs seem to be standing wave EM energized on the hull, the small 10-15m scout craft likely have a main tone around 10MHz and complex harmonics up and down, all the way down to audio range and at least up to GHz. GHz might even be a dominant component. Try looking for it. Sightings suggest at least 200 sorties around the world every day and they might put out considerable power levels so should be detectable from 1000km+. Larger craft will have deeper tone presumably. It will be a strong signal that has no data. When close they sometimes emit a sound like an agitated bell, a bit like meditation vessels. Similar sound might be recognizable in RF as a beat frequency or something. No FM modulation of course since it's a side effect of the propulsion.
It is a certainty that ET ships frequent our skies and there is strong evidence of EM and RF, only a question of how easy are they to detect. Coastal areas might be the most frequent as the regulars seem to have bases on earth, specifically in the continental shelf sea floor.
Yes! Finally someone who understands!
