Hi all,
As a part of Hobby I made a VLF receiver which can detect close and distant thunder strikes (which are broadband spikes in the waterfall display). I want to extend that project by adding a counter to count those spikes per second (which usually range from 1 to 10). This would need usage of digital ICs, BCD to 7seg IC which unfortunately I don't remember now (I learned it during my masters but forgot due to no use in my current career).
The scheme is straight forward and seems do-able. I have attached the block diagram (the wiring is abstract as I don't remember the ICs). Only first stage is done (the receiver). The next step (starting from clipper) I am having trouble with to start. Please have a look and advice me how can make it, and what ICs ar e needed. I want to count pulse per second, not continuous. If you have/propose a schematic/circuit for this project, please let me see.
Many thanks.
As a part of Hobby I made a VLF receiver which can detect close and distant thunder strikes (which are broadband spikes in the waterfall display). I want to extend that project by adding a counter to count those spikes per second (which usually range from 1 to 10). This would need usage of digital ICs, BCD to 7seg IC which unfortunately I don't remember now (I learned it during my masters but forgot due to no use in my current career).
The scheme is straight forward and seems do-able. I have attached the block diagram (the wiring is abstract as I don't remember the ICs). Only first stage is done (the receiver). The next step (starting from clipper) I am having trouble with to start. Please have a look and advice me how can make it, and what ICs ar e needed. I want to count pulse per second, not continuous. If you have/propose a schematic/circuit for this project, please let me see.
Many thanks.