jks
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v1.443: automatic SNR measurement, queue/camp panel reload button, misc fixes
v1.449 April 3, 2021
SNR measurement adjustments on admin page control tab:
Adjust recording interval: 1, 4, 6 or 24 hours per measurement.
One week's worth of data is retained in the rolling buffer.
New JSON field "seq" (incrementing) to help identify most recent entry.
In addition to existing frequency measurement intervals 0-1800 and 1800-max kHz
added 0-1800, 1800-10000 10000-20000 and 20000-max
These are similar to what Marco uses (sibamanna.duckdns.org/sdr_map).
Selectable local/UTC timestamp.
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sd card problem during backup
If the Linux "lsblk" command doesn't see the mmcblk1 device (note "1", not "0" which is the on-board filesystem) then as far as Linux is concerned the sd card isn't plugged in (or recognized). The Kiwi software has nothing to do with it at that point. That's why the lsblk command is run in the script -- to show that state of the sd card before doing anything.
So while everything is still running try pushing on the sd card to eject (unlatch) it, then re-seat it and try the backup again. I sometimes find I have to do this a couple of times. I don't know why.
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v1.443: automatic SNR measurement, queue/camp panel reload button, misc fixes
From the CHANGE_LOG file:
v1.443 March 22, 2021
Added automatic SNR measurement:
Every 6 hours (4 times daily) a Kiwi will connect to a free channel (if available)
and measure its own SNR. These results are available in JSON format from the
URL: my_kiwi:8073/snr (adjust Kiwi name and port number as required).
This URL is publicly accesible. Disable on the admin page, control tab if you
don't want to share this information.
The measurement details can be easily changed. Suggestions welcome.
SNR is currently defined in the same way as used by the sites snr.kiwisdr.com
and snr2.kiwisdr.com, i.e. waterfall dBm values, sorted, noise = 50th percentile
value (median), signal = 95th percentile value, SNR = signal - noise.
Two measurement bands are recorded: 0-30 MHz and 1.8-30 MHz in an attempt to
filter out the AM BCB. The JSON data also contains min/max dBm values and a
timestamp (local time unless the "UTC" value is set).
Added "reload page" button to queueing panel ("camp" parameter is removed from URL)
Use to quickly access any Kiwi redirection that might be available.
Autoscale button and aperture auto mode now disregard masked areas from calculations.
Admin page UI changes:
GPS RSSI now red color for sats not actually acquired (i.e. no subframe decoding)
Registration now requires a valid location field (for benefit of map.kiwisdr.com)
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How to connect via wifi
Look carefully at the BBG-W. Seeed violated the BeagleBone cape spec and the Kiwi board can't even physically plug into it (those double-high USB connectors physically interfere). As a result there has been no software development for it.
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KiwiSDR fails to update from 1.390 to current 1.442 [bad filesystem, fixed]
It's a huge headache to construct sd card images of the current release. So I don't do it often. v1.390 was the last. We all depend on the autoupdate over the network.
The build is progressing now, but very slowly. Something seems to be taking a lot of cache space in main memory. I don't understand why. There are no processes that seem out of place.
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How to connect via wifi
A USB-to-WiFi dongle is a lot of work and grief unless you know what you're doing.
A much easier solution is to use a wired-Ethernet to WiFi mini-router: https://www.tp-link.com/en/home-networking/wifi-router/tl-wr802n More info here: http://forum.kiwisdr.com/index.php?p=/discussion/1653/connecting-kiwi-via-wifi/p1
The worst problem there is dealing with the required 5V power input as the supplied adapter is a potentially noisy switcher. Although you might be able to get 5V from the BBG/BBB USB-A "host" port. Anyone actually doing that?
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Ham Band Limits for ITU Region 1 are not correct (40 Meter Band [should be fixed in v1.440]
There is a fix for this in the next update. It's tricky because Kiwi owners may have arbitrarily edited the definition of bands[] in config.js in ways that my fix may not have anticipated. Although my fix tries to take this into account.
The whole situation will be better addressed when the contents of config.js are absorbed into the admin user interface and config database. But that's a complicated change that will not happen anytime soon.
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Hide "in-band-canvas" [partial fix in v1.436]
Beginning with v1.436 the band identifiers will not be displayed if their frequency is less than the frequency scale offset. But the remaining empty white space is not reclaimed because right now that is difficult to do (for historical reasons). It will have to wait for a major rewrite of that part of the code.
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RSDN-20 beacons reactivated on 11.9, 12.65 & 14.9KHz
Feb 2021: Alpha "Khabarovsk" (nearest town Elban) as received from the Kiwi in Khabarovsk about 200 km distant. MSK signals VTX3 India and NWC Australia also present.
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Feature Request
