Powernumpty
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- Powernumpty
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I think that is probably "LZ1AQ" and I agree beautifully made commercial version. Sounds like you have the space to try four crossed loops, the info on building antennas seems to imply that is a very sensitive antenna for quiet areas. Your…
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Could you turn on the spectrum so we can see the shape of it? Even screen dump just the spectrum, when pulses on and off. Are there any (battery backup) safety lights there? Freezers?
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could we not use a flag like the "no_wf" that says if it is OK or not to drop this session for a reboot? I.E. average off-site users by default can't fire up a session that will stop it rebooting, local users can (and local addresses do, b…
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PCTEL at 68hrs and 15minutes (after reboot). I have got it set to reboot each day but the WSPR channels are putting that off.(Image)
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That "kinky line" has an inline joint or three so make me wonder if it was damaged or transformer moved. I'd be more suspicious of the breakers going to the single phase, they must be, by definition non permanent fixings (spring loaded) ca…
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OK thanks, that is weird, saw a couple of fleeting connections previously but no actual successful tests. Will try it from a remote PC again see if it works now.
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Hi Martin, From other research I believe it is possible to turn mains networking "off" with SkyQ but it is not possible to disable the hardware, so "off" is actually "on, but not used for networking" can't make this stu…
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Cheers Martin, he or family members are on VDSL 20/7/360 (that's no exaggeration) it's not VDSL. He has SkyQ that uses mains networking and I recognise the impact (annoying but I can still receive) but his most powerful PC PSU is just awful and I ca…
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OK went back to this after seeing some weird control connection commands logged from China getting hidden in the log by UK sun up. Not saying this is the best way but its what I did and works to some level. "nano /etc/rsyslog.conf" Added …
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Ron Noise, you call that noise! Pah! I connected to my SDR yesterday morning to see a just astonishing, not see before (even here) level of noise. Here 98% is from one neighbour who makes a living from gaming and Youtube, the authorities even when h…
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Stuck my PCTEL up today, just on a pole to test. Question; what is the downside of having "Always acquire" on and is there a solid advantage? I turned it on when I first got the antenna, got to 12 Sats, turned it back off and left it for a…
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Ha wasn't expecting that! at least the cause was found to be external and actually fixed.
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"documentation is running behind reality" tell me about it! I was looking for a Haynes manual on string theory and nobody carries it. One guy said they stopped because observation changed the content.
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Also coax and connector losses, the PCTEL one I was pulling spec from was GPSL1-TMG-SPI-40NCB. "Bias Tee" is a productive search term on Ebay BTW.
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Good observation 30ma at 5V so probably marginal at 3.3 DC Voltage: 3.3-9.0 V (operating) ?28.0 V (survivability) DC Current: < 30 mA @ 5 V
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Is the dc side OK, connectors tight? You may be able to check the antenna voltage with a t-piece, maybe wait until it is bad. At work support issues "GPS loss" is about 90% cable related. Also check the connectors are not just position cri…
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OK sorry, think I get it now, the spawn command and the status gave similar a response so I had assumed one was the other. I was trying to glance at it while at work, never a good move. Thanks Rob.
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Watchdog not running, old script (didn't report -w unrecognised!), replaced script. Tried to use "kiwiwspr.sh -J a -w" no WD, tried "kiwiwspr.sh -w -J a" no WD. /home/pi/wspr/kiwiwspr.sh -W No Watchdog deaemon is running (well I…
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Personally I need to get the script to restart the jobs reliably after a Kiwi update (yes I'm using -w) and improve my antenna setup before I worry about sunspots in this looming "maunder minimum 2.0".
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I never really thought about GPS reception being able to model the local horizon, I suppose the big data guys can correlate shadow to reported location making GPS spoofing harder. I've ordered a higher gain antenna to test.
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I think you may have to forgo the top section or two if you want the best stability and to be able to feed the coax down inside (I did that on my fishing pole, not sure of the internal diameters of the proper device). Place a decent earth at the bas…
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Search "Spiderbeam 12m Fiberglass", that is designed for hoisting light antennas but a "10m fishing/flag" pole minus the two top sections will get it up a fair way and cost a lot less for a test setup.
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Have you done comparative plots with something like RTL scanner to see if there are nice new spikes about? (HF-VHF span) Anyone got corroded metal guttering or corrosion on antenna fittings? Stuck any ferrite on "should be safe" leads (lik…
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Just put some new wheels, and amp on my fence antenna, giving this method a go. For some reason this use of BeagleBone SDR, Pi, Linux and the internet not to mention scrap metal wired to clever Bulgarian amplifiers makes the geek in me more happy th…
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Devices are never quite enough for the ideas of the next user/version. Getting this out to market and being able to handle decoding externally has moved the field on. It has been a breath of fresh air to be able to see the RF world from so many dev…
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Works for me, just append it to the URL taken from the green arrow E.G. http://stucapon.plus.com:8073/?f=198.00amz8&no_wf
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Stick a t-piece and a 50ohm termination on it (purists splutter as they compose replies) mines like that. Sure it affects the antenna match and probably degrades reception but by slightly less than overload does (here).
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We measured the frequency cover and insertion loss with a MiniVNA (my own) against a calibrated rented VNA at work (with rented quality baluns for same) - for passing data over 600m twisted pair. The performance was so similar we returned the rente…
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Martin, have you tried adding a local IPv4 entry for the public name = LAN IP in the "hosts" file? If your packets are going on some routing trip that makes them appear public that could help. I have a distrust of IPv6 (unless well contro…
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I'm no big fan of "SSL Everywhere"as it gives a false sense of security, I had a conversation with the owner of a small game software company, he told me SSL was "impossible to intercept", I showed him how various software and ro…