| 19,12 → 19,12 |
|---|
| |
| \begin{figure} [htbp] |
| \begin{center} |
| \includegraphics [width=80mm] {./img/meteor_detector_station} |
| \includegraphics [width=80mm] {./img/meteor_detector_station.JPG} |
| \end{center} |
| \end{figure} |
| |
| \begin{figure} [b] |
| \includegraphics [width=25mm] {SDRX01B_QRcode.png} |
| \includegraphics [width=25mm] {./img/SDRX01B_QRcode.png} |
| \end{figure} |
| |
| \newpage |
| 38,8 → 38,8 |
|---|
| \multicolumn{1}{|c|}{Parameter} & \multicolumn{1}{|c|}{Value} & \multicolumn{1}{|c|}{Note} \\ \hline |
| Powering voltage for analogue part & $\pm$12V & 50mA \\ \hline |
| Powering voltage for digital part & +5V & 300mA \\ \hline |
| Bias of optional LNA & 9V & max 500mA (Fused by 750mA on board) \\ \hline |
| Frequency range & 0,5 - 200 MHz & Usually working at GRAVES 143.05 MHz \\ \hline |
| Bias of optional LNA & 9V & 500 mA maximum \footnote{Fused by 750mA on the reciver board} \\ \hline |
| Frequency range & 0,5 - 200 MHz & Usually working at 143.05 MHz \\ \hline |
| Gain & 90dB & Selectable by jumper and LNA configuration \\ \hline |
| Self noise number & $<$ 30dB & \\ \hline |
| \end{tabular} |
| 112,16 → 112,16 |
|---|
| |
| For simple PC based monitor station we are using SpectrumLab software with our configuration and detection script. |
| |
| Local oscillator of SDRX01B - usually CLKGEN01B with tuning controller PIC18F455001A can be set up from PC or can be programmed for fixed start up frequency. If fixed start up frequency is correctly saved the only step for tuning the LO is provide power trough USB cable from PC and then press the RESET button of tuning microcomputer module. After that the LO shout be tuned on saved start up frequency. This frequency can be changed by |
| Local oscillator of SDRX01B is a CLKGEN01B module with frequency tuning controller PIC18F4550v01A can be set up from PC or can be programmed for fixed start up frequency. If fixed start up frequency is correctly saved the only step for tuning the LO is provide power trough USB cable from PC and then press the RESET button of tuning microcomputer module. After that the LO shout be tuned on saved start up frequency. This frequency can be changed by |
| |
| \begin{thebibliography}{99} |
| \bibitem{DR2G}{Spectrum Lab} |
| \bibitem{Spectrum_lab}{Spectrum Lab} |
| \href{http://www.qsl.net/dl4yhf/spectra1.html}{http://www.qsl.net/dl4yhf/spectra1.html} |
| |
| \bibitem{DR2G}{Radio Meteor Detection} |
| \bibitem{Radio_meteor_detection}{Radio Meteor Detection} |
| \href{http://www.gb2nlo.org/index.php/articles/meteordet}{http://www.gb2nlo.org/index.php/articles/meteordet} |
| |
| \bibitem{DR2G}{Meteor distance parameters} |
| \bibitem{meteor_distance}{Meteor distance parameters} |
| \href{http://www.amsmeteors.org/richardson/distance.html}{http://www.amsmeteors.org/richardson/distance.html} |
| |
| |
