How do you contact the Voyager 2 space probe? PART 1: A detailed explanation by Richard Stephenson from the NASA Canberra Deep Space Communications Complex in Canberra on how the 70m DSS-43 dish at the CDSCC is used to still contact the Voyager 2 probe. You can follow Richard on Twitter: https://twitter.com/nascom1 NOTE: This video is a re-release from the EEVblog Discover channel from 2017, to hopefully find a new audience. Forum: https://www.eevblog.com/forum/blog/eevblog-1547-contacting-the-voyager-2-space-probe/ 00:00 - How do you contact the Voyager 2 space probe? 03:14 - Voyager ISN'T the lowest signal level! 06:29 - The Failed Capacitor and the Best Lock Frequency 09:00 - Transmit uplink power 10:00 - System noise temperature 10:30 - S and X band receivers 11:42 - Mars Reconnaissance Ordbiter and the Signal to Noise Ratio 12:39 - Maximum Transmit power is WHAT? 13:12 - The effects of weather 14:16 - Power supply and backups 15:29 - The roll of the Deep Space Network 16:50 - Mag Roll Calibration If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog Web Site: http://www.eevblog.com Other channels: EEVblog2: http://www.youtube.com/EEVblog2 EEVdiscover: https://www.youtube.com/eevdiscover T-Shirts: http://teespring.com/stores/eevblog #ElectronicsCreators #NASA #voyager ... https://www.youtube.com/watch?v=586Zn1ct-QA

Depotting, teardown, and some reverse engineering analysis of the 400W Hoymiles solar microinverter. https://www.hoymiles.com/products/microinverter/ Hoymiles vs Enphase microinverter review: https://www.mcelectrical.com.au/hoymiles-microinverter-review/ Forum: https://www.eevblog.com/forum/blog/eevblog-1518-hoymiles-solar-microinverter-teardown/ 00:00 - Hoymiles 400W Micro Inverter 01:05 - Removing the silicone thermal potting compound 04:20 - Mains wiring and dangers of high voltage DC string inverters 05:43 - Installation requirements. Electrican vs solar installer 06:40 - PCB top side 07:54 - Anti-islanding safety feature 09:56 - What's a bit of flex... 10:48 - Bottom the PCB 11:41 - Reverse engineering time 15:57 - Mains voltage and frequency detection 17:03 - Schematic Support the EEVblog on: Patreon: http://www.patreon.com/eevblog Odysee: https://odysee.com/@eevblog:7 Web Site: http://www.eevblog.com EEVblog2: http://www.youtube.com/EEVblog2 EEVdiscover: https://www.youtube.com/eevdiscover AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! https://www.eevblog.com/crypto-currency/ T-Shirts: http://teespring.com/stores/eevblog #ElectronicsCreators #solar #microinverter ... https://www.youtube.com/watch?v=_H4IP_iEzWw

Part 2 of an impromptu play with Dave's Wekomm 10K Transfer Resistance Standard. Was the Keithley DMM7510 multimeter the culprit in the discrepancy in the thermal response? Dave finds out with the help of a thermal chamber. Part 1 is here: https://www.youtube.com/watch?v=dIXbjNb82xk http://www.wekomm.de/metrologie_e.php Forum: http://www.eevblog.com/forum/blog/eevblog-834-wekomm-resistance-standard/ EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 ... https://www.youtube.com/watch?v=gEDs0OtOkGE

Check out Karl Von Mollers awesome documentary series State of Electronics, being released weekly on his Youtube Channel: https://www.youtube.com/channel/UCOepzhfgouq_rPxDx-kCn7Q/videos http://www.stateofelectronics.com/ Be sure to subscribe to get the latest video each week! Interview with me, Dick Smith, Colin Mitchell (Talking Electronics), Own Hill (Microbee), Jon Oxer (Freetronics), Doug Ford, and dozens of others! EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! ... https://www.youtube.com/watch?v=Oon6TyiUx9Q