Various creations aimed at amateur radio use |
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Transceiver Bitx40 with AT-Mega328P.. Specification ......................Version with display TFT touch-screen , Arduino Mega 2560 Specification |
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Modulator and demodulator for CW with Arduino Nano Specification......................................................Concourse self-construction |
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Packet - APRS : Description of the various models created | |
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Transverter 50/144 MHz : from RadioRivista Specification ................................................. from CQ elettronica Specification
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Realization at 1296MHz : transverter 1296/144 MHz ................................................................................................. Linear 1296 Mhz 2,5 W Specification
..................................... Generator of signals at 1295 Mhz ............................................................................Same as my 1296 Mhz |
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SWR Meter :Power /SWR measurement with built - in frequencymeter . ![]() |
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Antenna Analyzer third version : The main modification is that the display of the antenna surface varies with the band framed by a graphic (vedi photo). The sound frequency range generated by a DDS module AD9851 is responsible for scanning the amateur radio band up to 30 MHz. This means that there is an immediate response to the antenna signal on the desired band. Please maintain the measures reactance and impedance . Specification ..... ....................... Altra realized with the logic part present in the ATMEGA 328P ed used as DDS module AD9951. Altra modification will keep the management of the graphic display written with the input data serially that is consented to piloting with only one line other than naturally by mass and power supply. For the rest, as if you can see the electrical diagram, the analog part still maintains the previous version precedente . Specificatione................... . |
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Antenna analyzer : project taken from the site http://lpistor.chez-alice.fr/antan.htm I refer for electrical schemes and information for assembly. Created and tested in collaboration with the members of the Ari section of Scandicci. Indispensable to calibrate the antennas . Specification
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Second version antenna analyzer : The digital part has been changed to have the indication on the display beyond frequency, the impedance the switch and reactance. This requested the redesign of the digital part with the use of Pic 16f876-20 . |