4/30/2024 0 Comments Using cw decoder with signal link![]() ![]() These little condenser (Electret) microphones are not very sensitive, and the job I have tasked it with requires that it be very sensitive. The one important difference is that the one I am using has a fixed gain of 20db where the Adafruit version allows you to set the gain higher. There are a few differences between the module I am using and the one you linked. Thanks again everybody, I'll be following and posting on this thread while I continue the project. I'll also be working on a CW encoder eventually but I'm planning to task that to a Raspberry Pi so those questions will be going to a different forum. Hopefully this will turn into something I can actually use with my ham radio equipment at some point. So now I'm shopping around for an inexpensive mono audio amplifier and have some quarter inch audio jacks on the way that were ordered for a guitar amp that I am repairing for somebody, so the extras may end up in this project. I'm also a Fallout fan and still regularly play through Fallout 3 so I thought it would be cool to use this to decode the radio beacons that can be found scattered around the capital wasteland. ![]() This is a project that was built by an amateur radio operator, and I want to use it in the same application. I've also modified the code to support an I2C display since that's what I have on hand and makes for a lot simpler wiring. For anybody who is curious about the project, below is a link to the project I'm working from, note the voltage divider resistors in that schematic. Thanks for the input guys I really appreciate it. ![]()
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