01-02-2006, 02:44 AM
I don't know too much about mounted GPS units since I only have a handheld. But I do know that two 200 Khz transducers in close proximity with interfere with each other. The higher power unit will fuzz the lower power unit screen. Don't know what happens if they are the same watts... My FF sonar and boat depth sounder both run at 200 KHz so I have to disable the boat depth sounder when I am fishing with the sonar and then when I am just out playing with the kids skiing and tubing I take the FF off the boat to prevent it from getting damaged and turn the depth sounder back on.
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