03-19-2004, 12:16 PM
Hey wh2, RMS is just another way of showing power, volts, etc, but not frequency. To convert peak to peak power, divide the peak to peak watts, and multiply by .707. Ie, 1000 watts peak to peak is 353.5 watts rms. RMS stands for root mean square, by the way. There is no difference between 1000 watts p-p and 353.5 rms.
As far as frequency goes, it seems like most fishfinders, at least the ones that I've looked at, are in the 200khz range. Two fishfinders in close proximity would probably interfere with each other, so I'm guessing that's why there are different freqencies available. Just like r/c airplanes and cars, you wouldn't want your signals crossing.
I have no idea what fstn stands for, sorry.
Mateo
[signature]
As far as frequency goes, it seems like most fishfinders, at least the ones that I've looked at, are in the 200khz range. Two fishfinders in close proximity would probably interfere with each other, so I'm guessing that's why there are different freqencies available. Just like r/c airplanes and cars, you wouldn't want your signals crossing.
I have no idea what fstn stands for, sorry.
Mateo
[signature]