Description and useful information:

This version always uses the same general setting as the previous version, it differs in the use of the ATMEGA328P as well as the DDS which in this case uses the AD9951 module. It maintains the same characteristics as the version with the PIC, but it was also possible to insert a frequency generator that covers the frequency range from 1 MHz to 50 MHz with 1 Hz steps. The buttons have the following functions: M = Mode or is used to switch from the antenna analyzer function to the signal generator: S = Step active only in the signal generator function and is used to modify the step for increasing or decreasing the frequency: + in the antenna analyzer mode it switches to the higher frequency band, while in the frequency generator function it increases the selected value set with the step: - as above but the value is decreased. As specified in other parts of the site, these are experimental creations, therefore improvable and/or modifiable: no responsibility is assumed in this regard. Available for any requests for further clarification as well as providing the necessary software .

.....................................Circuit with DDS inserted..................................................................................Circuit without DDS

Biographies

documentation ATMEGA328P Atmelp datasheet
documentation modulo DDS AD 9951 Analog Device datasheet