http://tangledspaces.com/blog daily 1.0 2024-03-01 http://tangledspaces.com/blog/visionpro-practice monthly 0.5 2024-03-01 http://tangledspaces.com/blog/2015/9/28/measuring-my-simple-reaction-time monthly 0.5 2024-02-29 https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1443472485379-4SDK0CC55GZSPLW8CVPG/image-asset.jpeg Blog - Measuring my simple reaction time https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1443471869298-IL58GZX4HLL6JAFJZZ4L/Population+data.jpg Blog - Measuring my simple reaction time From: http://journal.frontiersin.org/article/10.3389/fnhum.2015.00131/full https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1443472357749-20CC23YN5S5CEY7LS8UU/image-asset.jpeg Blog - Measuring my simple reaction time https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1443470965626-UD36XNTSZ4TNOLGM1LK9/Device.jpg Blog - Measuring my simple reaction time Based on: http://www.instructables.com/id/Arduino-Reaction-Time-Tester/ https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1443475348333-HDGN7Q56RJ471W3B41R7/TimeCourse.jpg Blog - Measuring my simple reaction time http://tangledspaces.com/blog/2013/6/23/hour-scale-frequency-variations monthly 0.5 2016-12-28 https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1372000200344-II25K9LRT31DM70AB509/CHU7MHz.jpg Blog - Hour scale frequency variations Waterfall plot of CHU time station carrier at 7.850 MHz. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1372008561235-F933IMRISXY1GM9AMXMS/CHU7MHz1.jpg Blog - Hour scale frequency variations CHU signal at 7.85 MHz. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1372000448340-8IPBHBMW8KMCAEKQBSVR/WWV20MHz.jpg Blog - Hour scale frequency variations Waterfall plot of WWV time station at 20.0 MHz. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1372007982673-ATX6CD21TGWFUCNW7C6X/WWV10MHzComb.jpeg Blog - Hour scale frequency variations WWV signal at 10 MHz over four hours. Time flows bottom to top, left to right. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1371999876437-WLELWQLZEQNPXM0QSXVP/CHU3MHz.jpg Blog - Hour scale frequency variations Waterfall plot of CHU time station carrier at 3.33 MHz. http://tangledspaces.com/blog/2013/6/15/wwv-phase-video monthly 0.5 2013-06-15 http://tangledspaces.com/blog/2013/5/25/getting-a-bearing monthly 0.5 2013-05-25 https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1369525113888-ZAQJV9O312PITX3D2PG8/Geometry.jpeg Blog - Getting a bearing Antenna and signal geometry. Yellow circles are the two antennas with the ruler showing the separation and bearing. Magenta lines are wavefronts of signal coming from the west. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1369522395342-Z0DF0KIIWPSWKF4JZDRY/PhasePhaseShifted.jpg Blog - Getting a bearing Shifted phase in receiver 1 versus phase in receiver 2. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1369522194742-416OMT07PEJV0IRQWVIJ/PhasePhase.jpg Blog - Getting a bearing Phase in receiver 1 versus phase in receiver 2. http://tangledspaces.com/blog/2013/5/23/two-antenna-diversity monthly 0.5 2013-05-24 https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1369360566514-1EDC91OH5O0OXZHWLODS/DiversityPlots.jpg Blog - Two antenna diversity Phase and amplitude of 15 MHz WWV with two spatially separated antennas. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1369362400006-RH124BONNQMMPF2N6E44/Trajectory.jpg Blog - Two antenna diversity Trajectory of one signal amplitude plotted versus the other. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1369362077481-XK8EZNE7G86X5DZQ3ZZW/Amplitudes.jpg Blog - Two antenna diversity Superimposed amplitudes of the two signals. http://tangledspaces.com/blog/2013/4/28/chirps-oblique-ionosondes monthly 0.5 2013-04-28 https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1367181172778-O0WDSEFJHPT584IJD79W/ThreeChirps.jpg Blog - Chirps: oblique ionosondes Waterfall of three chirps, 12 minutes apart. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1367182962827-9P3KJFP3PT41838PH01R/3ChirpPhase.jpg Blog - Chirps: oblique ionosondes Phase and amplitude of 3 chirp signals. http://tangledspaces.com/blog/2013/4/7/03-msec-ionosphere-velocity-shear- monthly 0.5 2013-04-07 https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1365357518298-66RIH0QNK3INC4TLZ0A8/WWVtones.jpg Blog - 0.3 m/sec ionosphere velocity shear ? Phase change of carrier and 500 / 600 Hz tones. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1365357342772-CN10UB98M86L2NVR2QDL/600HzTones.jpg Blog - 0.3 m/sec ionosphere velocity shear ? -600 Hz, 0 Hz (carrier) and +600 Hz WWV tones. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1365357164607-OZU576BI1FNY571YNOLU/500HzTones.jpg Blog - 0.3 m/sec ionosphere velocity shear ? -500 Hz, 0 Hz (carrier) and +500 Hz WWV tones. https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1365356864610-TMVNFU3AGDY1ZD7ZXP6E/WWVmod.jpg Blog - 0.3 m/sec ionosphere velocity shear ? Waterfall spectrum of WWV on 15 MHz over two minute period. http://tangledspaces.com/blog/2013/4/4/dual-frequency-wwv-signals monthly 0.5 2013-04-05 https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1365121370968-O8EQMJD2J5TK4HPR9QWO/WWV10-15.jpg Blog - Dual frequency WWV signals Simultaneous phase and amplitude traces for WWV signals on 10 and 15 MHz. http://tangledspaces.com/blog/2013/3/31/measuring-wwvb-phase-or-not monthly 0.5 2013-03-31 https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1364766792535-YCPQLIAJT2IWAI68JHNE/WWVBphase1.jpg Blog - Measuring WWVB phase - or not WWVB phase and amplitude. http://tangledspaces.com/blog/2013/3/16/phasewwv monthly 0.5 2013-03-31 https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1363742777601-FEMTH1YJNSEFX21EL03A/WWVphase1.jpg Blog - Measuring WWV phase Measured phase of WWV on 5 MHz http://tangledspaces.com/blog/category/Movies monthly 0.5 http://tangledspaces.com/rticlesa daily 0.75 2013-03-17 http://tangledspaces.com/read-me daily 0.75 2012-10-09 https://images.squarespace-cdn.com/content/v1/4f835d8824ac546d1ea35cd2/1349791507004-RU3DKM07YCVOE22OJ9N0/social.jpeg Read Me https://images.squarespace-cdn.com/content/v1/4f835d8824ac546d1ea35cd2/1349791498571-TKCUR3SOM7Y061E722BJ/layout.jpeg Read Me https://images.squarespace-cdn.com/content/v1/4f835d8824ac546d1ea35cd2/1349791486793-GCDHNCM95I5A4NS5Z04H/promoted.jpeg Read Me http://tangledspaces.com/about daily 0.75 2024-02-29 http://tangledspaces.com/home daily 0.75 2013-03-17 https://images.squarespace-cdn.com/content/v1/513b571be4b060b33d4b350c/1363055030517-KUPCBPYQKP0PMI08WJ4X/HeaderImage.jpg Home http://tangledspaces.com/birding daily 0.75 2013-03-17 http://tangledspaces.com/ham-radio daily 0.75 2013-03-17