3 ms·
I was under the impression that gps antennas were powered...and special. The receiver has to pull the signal from below the noise floor so needs a little help
by UncleEntity 8y ago
I was under the impression that gps antennas were powered...and special.
The receiver has to pull the signal from below the noise floor so needs a little help but, admittedly, my understanding on how it all works is limited.
- tonyarkles 8y agoA sibling comment mentioned using a Bias-T, and that's pretty much always needed unless you're using a COTS Rx (which would generally have one built-in) It doesn't even have to be a fancy one. In a pinch, once, I use a random-valued inductor and the smallest-valued capacitor I had on-hand, and soldered them to a little PCB I made by slicing up copper-clad board with an x-acto knife. (0603 parts, if I recall.) Worked like a charm!