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UR5VIB
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- UR5VIB
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I have tested this "Schwabra" dipole in my environment and found that there is more noise in lower frequencies up to 2 MHz than with Mini whip regardless the dipole position. But looks like it has better performance compared to classic sho…
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JMH, Tokyo, Japan fax transmission (5 kW TX) on 3621 kHz USB, was received in KN68BK, Ukraine, 16:58 UTC, with KiwiSDR Fax extension. The receiver antenna is Mini-Whip. Fortunately, there was no usual QRM at the moment.(Image)
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Hi, With help of Quatar and few other KiwiSDRs yesterday I've been successive to TDoA 60 m radar(s) to Makhachkala, Republic of Dagestan, Russia. (Image) Further Google searching revealed that this might be «Sunflower» radar located in Kaspiysk …
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> I have a remote system for switching the Kiwi's powersupply off/on. > I tried that several times. It never comes online now. Similarly to yours, in my setup I have an external watchdog device that pings KiwiSDR every five minutes and if the…
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Thanks John! Ivan, UR5VIB
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Hi John, Found another assertion failure in /var/log/messages: Apr 24 09:33:20 kiwisdr kiwid: 06:38:06.599 0123 TaskSleepID: pending_sleep ========================================= Apr 24 09:35:22 kiwisdr kiwid: 06:40:08.656 0123 TaskSle…
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Thanks! I replaced the failed GPS frontend IC (bought on Aliexpress, not sure about it's quality) a few months before, may be it's somehow related to this assertion ocurrence. Ivan, UR5VIB
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Sure, John, go ahead, please. Ivan, UR5VIB
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I made a video of running Dream on Linux Mint 18. I suspect most of the DRM audio dropouts were caused by CPU usage bursts and/or hard disk I/O activity when I did the screen recording. https://www.youtube.com/watch?v=CGaNR2NhEIo
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In the winter KiwiSDR has stopped a few times (apparently because of power spikes) and I had to go to the remote location and powercycle the assembly. After that I started a VPN client on a beagle so I can SSH to it via VPN while I'm not at home and…
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I used one I bought from Aliexpress (item number 32765249539) until kiwi GPS front end died after lightning strike. Nothing bad I can say about that antenna. It came with 5-meter cable, but there are 3-meter variants as well (less cable attenuation)…
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> http://f1jeksdr1.ddns.net:8073/?f=27950.40usbz6 Those birdies sound pretty much like an Ethernet noise I have fought on my Kiwi with ferrite cores. I strung about one meter of them onto the coax near the receiver and about 80 cm at antenna end…
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I faced the similar RFI problem with my ethernet cables inside the garage where the receiver risdes. The only solution (partial) I found is to keep the Ethernet cables as short as possible. That can be seen on the welcome photo of my SDR.
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> Yeah, I should have spent the time to add a low Rds(on) P-FET. I incorporate IRLTS2242 in each device I'm designing since some of my previous ARDF transmitters were accidentially burned by applying the reverse polarity by club members while be…
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Yes, catched this myself a few times after 1.79 update. Thought that it's BB Black glitch. In /var/log/messages it looks like kiwid is restarting.
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One note about autocreated UPnP rules. The presense of the necessary UPnP rules should be checked by KiwiSDR process periodically. In case of router reboot the rules should be recreated otherwise KiwiSDR would 'think' the network is OK while it isn…
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Hi there, Disabled the port-forwarding firewall rule and switched on UPnP on KiwiSDR. The result is:Automatic add of NAT rule on firewall / router: succeeded SDR.HU status: KiwiSDR v1.65 NAT1 Router model: OPNSENSE with os-upnp plugin enabled…