Going to roll the dice on having boards made without prototyping it first. I have no idea if this will work but I think I thought it through well. First version is single frequency and set using binary instead of ordering it programmed to a set of frequencies.
Whatever frequency you want, convert the Hz to binary and solder it on the back. I have the parts on the way and I'll be ordering boards tomorrow after I triple check everything. Board is 30mm x 34mm and the output can be direct from the 5351 output, or by turning a resistor 90 degrees, passed through a mosfet at supply voltage (input voltage, not the 3.3v regulator). Should make the output strong enough to work the neighbors. Still contemplating resistor choice there.
This will be my first 4-layer board. I have a few little changes to make but this is about what it will look like. 6-pin header for initial programming only. Power in the 2-pin header.
already added copper for the back of the board where the sma goes
edit: and i also see that my attempt at eyeballing the sma pads failed, going to have to make that bigger.
Whatever frequency you want, convert the Hz to binary and solder it on the back. I have the parts on the way and I'll be ordering boards tomorrow after I triple check everything. Board is 30mm x 34mm and the output can be direct from the 5351 output, or by turning a resistor 90 degrees, passed through a mosfet at supply voltage (input voltage, not the 3.3v regulator). Should make the output strong enough to work the neighbors. Still contemplating resistor choice there.
This will be my first 4-layer board. I have a few little changes to make but this is about what it will look like. 6-pin header for initial programming only. Power in the 2-pin header.
already added copper for the back of the board where the sma goes
edit: and i also see that my attempt at eyeballing the sma pads failed, going to have to make that bigger.
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