The object of this thesis, is to construct a GPS controlled frequency standard. When manufacturing the device, we referred to Željko Božič's article »A GPS controlled frequency standard«. The device enables us to gain the same precision by using an affordable crystal oscillator as we would by using a more expensive one. The crystal oscillator is phase locked on the GPS receiver with highly precise 10 kHz output, which is synchronised with Coordinated Universal Time ( French: Temps Universel Coordonné, abbreviated as UTC). The chrysalis oscillator is locked into a PLL loop, and that is how it is controlled to gain a highly precise 10 MHz signal.
There are devices, which allow us the quality of 10 MHz oscillating signal, however they are more expensive than my own device. The device contains 10 MHz and 1PPS output. The communication with the GPS receiver is done through the USB-B input, through the FT231 communication chip.
The introductory part of the thesis includes a description of the GPS system and how it works, the role of the atomic clock, and the description of the Jupiter-T GPS receiver.
The following, second chapter, provides the description of the EAGLE program, and the making of individual elements, which we have added to the EAGLE booklet.
The third chapter describes the making of the printed circuit board (PCB) version I. and II., how the PCB works, and the signal measurements of PCB version II.
In the next, fourth chapter, the construction of the casing is described, and also the indicators and connectors on the casing.
The fifth chapter offers a description of the device testing process.
In the conclusion findings are presented, that were discovered whilst writing this thesis.