Quote:
Originally Posted by driftwood
Power (Wattage)
The power of a sonar unit is described in Watts. The term "peak to peak" is used to describe the overall output power of the transmitter. When dealing with fishfinders, the higher the wattage, the more efficient and powerful the overall unit will be. Low wattage will ultimately bring you slow readouts, meaning a delayed reaction for a reading of a spot you have already traveled over.
The bare minimum peak-to-peak power would be 800 Watts, although 3000 plus Watts or more is certainly recommended for most anglers. One key point to remember: the shallower the water you fish, the less power you will need. For those that fish deep water (such as the Great Lakes or saltwater) it is best to choose the most powerful unit that your wallet will allow.
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can you show us where you are getting the output wattage for the unit?
again consumption not output,
from the link above
"Power consumption at full brightness 8 watts"
Raymarine is not listing the output wattage of the FF.
look at the FAQ page.
http://www.raymarine.com/view/?id=7625