G8JNJ
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One small bug (possibly). I've found that if you have opened a session using a url string and that remains in the browser, it may not be easy to switch to another predefined scan. The url scan seems to override anything else. I have to halt the url…
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Hi John, Thanks for adding the url string capability so quickly Absolutely brilliant :-) Regards, Martin
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"Likewise when it appears that no activity occurs at all on some lists these would perhaps need to be dropped or modified at some point." Yes I had wondered about somehow creating an automatic activity log list that could count the number …
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Ah wrong menu - RTFM The Kiwi owner/admin can define the contents of a custom menu on the Admin > Extensions > ALE_2G page. JSON format is used. User's cannot currently define their own menus, but suggestions for the downloaded menus on exte…
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Hi Ben, I just tried ?ext=ale,3000,4000,5000,6000,scan:1 But no scan occurred. I then tried ?ext=ale,3000 The extension opened but didn't tune to 3000, so I assume for the url to work the parameters have to be pre-defined in the extension. I've tri…
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Hi Ben, I was thinking of making it easier to bring up pre-defined scans by using stored browser bookmarks, or url strings especially if monitoring as a guest as you mentioned. It's basically adding scan some defined frequencys to the current ALE ur…
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Someone has mentioned loosing the logged signals when the KiWi times out and goes to the splash screen. A similar thing has happend to me when using other extensions such as SSTV. Is there any way to allow the KiWi's last view persist in the browser…
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One other thing I discovered today The SSB receive passband needs to be set correctly. Maybe the ALE extension should change the filter bandwidth to some default valued best suited for ALE. Regards, Martin
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Hi John, Would it be possible to setup your own scan list by means of including frequencies in a suitable url string ? This may be a quick way to implement personal lists without having to provide them in the GUI. Regards, Martin
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One ALE session running. Opened second session using same browser. Stats. 4:30:21, v1.463, 4 SDR ch, 12 GPS ch GPS acq yes, track 1, good 0, fixes 0 WF 7 fps Audio 48.2k, Qlen 6 BB 64,8,26 usi% 1.0 GHz FPGA 7% Net aud 6, wf 7, http 43, total 70 kB/s…
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I tried one of my remote KiWi's and started a session with my Win10 PC then set an ALE scan running. I then connected a second session using my iPad, and as soon as I started the ALE Extension the iPad waterfall froze. The other session on the Win10…
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Updated to v1.463 tried using Firefox, Chrome and MS Edge under Win10. KiWi in 12 and 8 Channel modes. Open first KiWi session and start ALE scan. All OK until I open a second session. All waterfalls and spectrum displays freeze, but audio and scans…
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Hi John, I just chose the Govt US Cothen scan list and let it run. After a while it found this active frequency, but didn't recommence the scan. The waterfall and everything else was still running OK. I'll leave it running today and see if it happen…
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Unfortunately the bulk of ionospheric sounders these days seem to be digital. A list of stations can be found at http://digisonde.com The two linear CWsweeps that can be observed in Europe most days, I believe originate from the UK Military site in …
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Thanks for this release John, I've been eagerly anticipating it. I tried scanning the US Cothen network and got some decent captures despite my high noise floor. [13:34:31] [FRQ 15091.00] [Sounding THIS WAS] [From: OFFSPR ] [His BER: 3] [14:30:31] […
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Hi Fabrys, It could simply be that the server was busy at the time. I'd try manually updating again. Regards, Martin
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Although the resolution of the waterfall image is very slightly 'blurred' when wfi=0 is used, the overall effect, especially when fully zoomed out is impressive. Here's two more grabs, this time using EMA avg =4 (my favourite setting). For wfi=0 the…
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Just tried wfi=0 Big improvement, which is especially noticeable on the 'Data over Powerline' interference bursts around 20, 23 & 26MHz on my home KiWi. The spectral components I thought I'd been observing in the interference, were in fact artef…
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Hi John, Thanks for the information and links. I suspected something along the lines you mentioned, but I'm not overly familiar with FFT's, or the correct terminology for what I'd been observing. Reading the previous threads, it all now makes sense.…
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Hi All, This is not a bug report or a criticism, but an observation which may be relevant to this thread. Be aware that if you are using the spectrum or waterfall detail, it will only provide limited amplitude resolution with dips in the response, …
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Yet another thought. Would it be possible to include the auto scale max / min values and the difference between the two on the http://rx.linkfanel.net/snr.html page ? I have noticed that in the top 30 many of the poorer performers have a minimum v…
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Hi Manfred, Welcome to the KiWi Klub :-) An interesting idea that may be particularly useful if you are running an off-grid KiWi. I'd personally be interested to know. How much power this actually saves, especially if you need to use external pr…
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Two more thoughts....... The problem with Day / Night comparisons is interference from devices that are mainly used during the working day or solar PV. A lot of interference is broadband in nature or has closely packed spectral components. Measur…
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Maybe if the noise floor was measured at a number of spot frequencies across the spectrum. These are relatively clear. http://kiwi.farnham-sdr.com:8073/?f=6z12 http://kiwi.farnham-sdr.com:8073/?f=116z12 http://kiwi.farnham-sdr.com:8073/?f=2010z12 …
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It can sometimes take a very long time to perform the initial updates. Personally I'd leave it running overnight without any disturbance and see if it manages to complete the task. Two other things to check. Is the SD card removed - it should NOT…
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I agree it's a tricky subject. "The alternative would be to make the color gradient bi-dimensional, or somehow cram more information into the marker while keeping it uncluttered and visually straightforward..." Maybe just a very crude in…
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Hasn't this featured in another recent thread ? http://forum.kiwisdr.com/discussion/comment/8618#Comment_8618
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Hi Pierre & John, Thanks for doing this, it's much appreciated. I find the S/N map and rating list extremely useful, especially when trying to optimise my own KiWi's and also when trying to find KiWi's that are suitable for TDoA purposes. In f…
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http://forum.kiwisdr.com/discussion/comment/8919/#Comment_8919 Quote from John SAM (synchronous AM) is a placeholder. I figured people were going to be upset enough when I changed the mode buttons (they were) that I better only do it once. Even if…
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> >A related question is if there is some way to implement an adjustable RF gain threshold, so the background noise can be suppressed somewhat? > Yes it can be adjusted in the purple tabbed AGC section of the control panel. Regards, Mar…