Following the article on the radio solar bursts received on the decameter band during last few years by our Sidmonitor website i decided to publish two spectacular geomagnetic pulsations received with Forno ELF Observatory, sited in Forno di Coazze , Torino, Italy . (OPERA Network) For more references you can also see my previous works […]
I decided to publish here, after few years , the most spectacular solar bursts in the decameter band captured by our Sidmonitor (The commemorative website has been moved to http://sidmonitor.rf.gd ) solar spectrometers observatories , now permanently closed. Forno, in the Western Alps and Pasturana, in the plain of Alessandria. The two old live web-pages were […]
It is not easy for me to start this full article, as it collects about a couple of years of technical work conducted with other friends . I decided to divide this work into three parts. A first part made by Jan Jozef Oksiuta (VK4EBP) from Australia, a second that follows some old works done […]
I’ve tried to create a program that could calculate the linear phase of the 50 Hz mains in real time. Although there are online excellent Windows software such as Stable32 from Hamilton Technical Services and John Miles Timelab I needed a program running under Linux/Unix and Python. Luckly there was an online library that came […]
This will be the first part of a larger project that will include other friends that have collaborated with me directly or indirectly this last year. It was in many ways, a funny and interesting project to follow. All schematics, codes and results are free for use , please just give references to authors. USE CAUTION […]
Introduction This new project is added to Sidmonitor site , with Claudio Re and others friends , we have developed in last few years. Having Ionograms updated from Cyprus gives a good point of view on current state, the conformation and deformation of the ionosphere caused by natural phenomena such as solar active regions and […]
Time has come to make some measure and view the actual performance of some time and frequency standards that I’ve got here.In the market, there are many instruments that can perform this kind of job: frequency counters and time interval counters for example. Since I can not afford instruments such as the Microsemi 5120a, A7-MXU […]
Recently i’ve found some great codes from Tom Van Baak (Leapsecond) and use them as frequency dividers. You can find the *.hex and *.asm here I’ve burned some PIC 12F675 using a PIC programmer to have some CMOS TTL frequencies for various applications One of them was to use the M100, a great military Rubidium […]
In an age when time synchronization is getting vital and faster (NTP) and more accurate (PTP – IEEE 1588 ) with increasingly high performance network protocols, there are still glorious time codes used to synchronize time reference units or clients on primary time and frequency standards .One of them it is the IRIG-B. Recently i […]
I’ve tried for fun ,to record with a cheap USB Sound Card, a Radxa Rock Board with a custom kernel (added some audio and USB modules) running Ubuntu Server and the Explorer E202 , some stations in the VLF band. We usually monitor them in Turin observatory for SID correlations (http://sidmonitor.rf.gd/gallery/station.html ) The VLF receiver […]
Delta² 