G8JNJ
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This now seems to be an option in the latest version which was added last night. https://github.com/OH1KK/KiwiSDR-antenna-switch-extension Regards, Martin - G8JNJ
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Great, Thanks John. Regards, Martin - G8JNJ
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Hi Ron, I think that the problem is almost certainly loop imbalance. You can check this by rotating the loop to peak a known station. Note the signal level then rotate the loop 180 degrees and note the signal level of the peak in that direction. I…
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Hi John, Thanks for adding that feature, much appreciated. I find that it's still a bit difficult to identify the settings for unknown signals. The free version of signals analyser doesn't work that well, but the full version (without licence key) s…
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Hi, Looks like my 15 min inactivity time out setting doesn't work either. I've had some users sitting on the same frequency for 2Hours + without any obvious signs of activity. I've had to set a 180 min per day per IP limit to try an curtail this as …
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Just tried 'Kiosk Pro Lite' (free version) on my iPad mini. Seems to work with the same level of performance as using a standard browser. Regards, Martin - G8JNJ
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Hi John, Yes it's a useful site when trying to ID signals (like the Signal ID Wiki). They also link to another Russian site with an interesting bit of signal analysis software which doesn't seem to have been updated for the past few years. http://s…
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Hi John, At some point would it be possible to add user defined shifts and baud rates ? Some of the more 'interesting' signals on this webpage are not currently configurable. http://sferix.myweb.hinet.net/ Thanks, Martin - G8JNJ
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Hi John, It works very well. apart from the extension box doesn't pop out when using my iPad (this has occurred previously with other extensions which are now working OK) I like the scope and bit displays they are very useful. I had already used the…
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Hi All, It works well on the MF Navtex frequencies, but not on the HF frequencies where the message format seems to be different ? I also don't know much about Navtex, I'm currently decoding South America and China, but I don't see any ZCZC strings,…
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Hi John, "The current label system was never designed to handle thousands of entries." Agreed it's partially down to the way in which I use the KiWi. I like to spot 'odd 'transmissions - those that are unusual or unidentified. I typically …
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Hi John, It's associated with the 'density' of DX tags in the chosen zoom level. I now have a lot of tags >5,000. I edited the dx.json file and stripped out all the tags between 500KHz and 29MHz leaving me with a file size of 290 lines = 19KB I …
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Hi john, I'm using Win 7 Pro 64 bit. "look at the "stats" tab are you getting audio underruns while paging? " The audio stats 'freeze' whilst the audio is stuttering. "look at the log tab on the admin page for underrun mess…
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Hi John, A quick check at WF6 level with three successive page up / right arrow button presses to tune HF, results in ~3 seconds worth of 'stuttering' Regards, Martin - G8JNJ
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Hi John, OK I'll try and grab some stats. It's currently like this procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 1 0 0 369292 …
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Hi, We used some Ubiquiti kit at another WEB SDR site some time ago and had similar problems. From memory the Ubiquiti is powered over the Ethernet cable via a PoE adaptor. It does use internal DC-DC switching convertors, but they were fairly well s…
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"Unfortunately the Kiwi is in Maui and I am in California" Ah OK............ Good luck with your faultfinding, Martin - G8JNJ
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Another signal from XSQ China decoded today on 8425.50KHz Regards, Martin - G8JNJ
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Hi, This may sound a bit obvious - but have you checked that the antenna still getting power (DC supply volts) from the KiWi GPS SMA connector ? Sometimes when RF adaptors are being used the DC continuity can fail. Regards, Martin - G8JNJ
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Hi John, Since I originally suggested adding different baud rates I have discovered that NAVTEX uses SITOR-B and a CCIR476 a character set. I had not realised this and had assumed it was just the standard baudot format typically used for most RTTY t…
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Hi, Three other signals I've decoded (so far) 6322.5 CW FSK 170Hz shift 100bd, Murmansk, Russia12603.5 CW FSK SVO, 170Hz shift 100bd, Athens, Greece12622.5 CW FSK XSQ, 170Hz shift 100bd, China Regards, Martin - G8JNJ
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"I've had a report of the iPad browser freezing with v1.154 when the screen is rotated. Does anyone else see this?" Works OK for me on my fairly temperamental old iPad Mini. Regards, Martin - G8JNJ
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Hey, I just discovered that the new Navtex decoder works with other (very common) 170Hz 100bd FSK signals too :-) :-) I wonder how difficult it would be to add some adjustments for other shifts and Baud rates ? Regards, Martin - G8JNJ
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Hi John, Wow really good and the Navtex decoder works well too :-) Another bonus is that I've found that the LMS denoiser works on Fax transmissions. I realise that this is a new feature and is still under development, but as the LMS sliders are cur…
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Hi Lothar, Happy New Year. As Jim has suggested the SWARL is a good option if you don't wan't to create your own ID. Note copied from the KiWi Quick Start Guide. http://kiwisdr.com/quickstart/index.html#id-sdr_hu "Currently the form requires a…
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Update. The clock frequency is ~ 66.6667MHz 66.6667MHz - 16.6032MHz = 50.0635MHz = Beacon frequency :-) Regards, Martin - G8JNJ
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Hi, It could be a Nyqust sampling alias. From memory the ADC clock frequency is somewhere around 66.7MHz. So 66.7MHz - 16.6MHz = 50.01MHz which puts it in the same ball park. A couple of questions What is the level of the actual beacon signal at th…
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Hi All, Serdolik sounds like a possibility. Here's a longer recording including a section that does sound like an idling sequence or maybe RYRYRYRYRY :-) This may be the section that I took the screen grab from. Audio Sample 2 Regards, Martin - G8…
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Hi Jim, "I would say it is an "older waveform" as much of the newer stuff sounds more like "noise" I agree - that's why it stood out to me among all the others - it's 'odd' for a utility station. Regards, Martin - G8JNJ
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Hi Ron, It's probably Super Darn. I normally see it around 12MHz but your screen grabs look very similar. https://en.wikipedia.org/wiki/Super_Dual_Auroral_Radar_Network Regards, Martin - G8JNJ