GPS Jammer measurements

I have made some instrumental measurements on a GPS Jammer in the laboratory on L1 and L2 frequency bands .

For the frequency definitions for GPS bands see at :

https://www.everythingrf.com/community/gps-frequency-bands

                                       

Please note that the use of this devices on air is strictly forbidden .

Kiwi SDR - Born to be remote stand alone 10kHz - 30 MHz

Kiwi SDR is a very smart product easy to put in remote without any PC .

Just plug an antenna , a GPS antenna , if you like , power supply and network connection and you will have a fully remore station that allow till 4 users at the same time .

There are already more than 400 RX around the world that can easily accessed without password or software installation .

It has also very interesting decoders and special functions .

One is TDoA , Time Difference of Arrival  .

Using three or more stations you can find the place where a signal comes .

Here you can find alla the links to understand and three pictures of the test I have done receiving and locating the 77.5 KHz DCF77 station .

http://kiwisdr.com/public/

https://www.wimo.com/en/kiwisdr

http://www.udxf.nl/tdoa_firstexperiences5.pdf 

https://www.rtl-sdr.com/kiwisdr-tdoa-direction-finding-now-freely-available-for-public-use/ 

Baudline - Un Software Spaziale ... ?

Mi sono imbattuto in questo "strano" software sviluppato nel corso di dieci anni .

Da quanto si deduce dal gruppo twitter viene anche usato in ambiti spaziali :

https://twitter.com/baudline

Di sicuro sono persone che la sanno lunga sia di teorie dei segnali che di programmazione .

Le funzioni sono vastissime e ben documentate .

In particolare esistono un paio di funzioni che , dalle foto darebbe risultati " esaltanti" .

Ecco due esempi mirabolanti , prima e dopo , che onestamente non sono in grado di giudicare , ma ho gia' sguinzagliato un po' di persone giuste .

Dove sta l'inghippo ? Gira solo su Linux a Mac OS .

Magari qualcuno di voi e' in grado di vedere se con Wine o qualche emulatore si puo' ovviare ....

Adalm Pluto RX in odd harmonic mode at 10 GHz

 

Adalm Pluto Local Oscillator is square wave , it is possible to use it in odd harmonic mode . Here is shown how much is the attenuation, tuning at 3333.333 MHz and receiving at 10 GHz (25 dB) .

Other posts and measurements  on ADALM PLUTO here : 

https://air-radiorama.blogspot.com/2020/08/adalm-pluto-used-as-signal-generator.html

https://air-radiorama.blogspot.com/2020/08/pluto-satsagen-compared-as-spectrum.html

https://air-radiorama.blogspot.com/2020/08/while-i-have-very-good-laboratory-with.html