[Capt. Debbie]

In general the difference bewtten analog v digital radar or Fish Finders is signal processing. The transducer or radar transmitter send out a pulse. This pulse remains analog. The difference is when it returns.

The analog bounce back wave is digitized( converted to digital) so computer processing can occur of what the bounce back wave includes.

Now that's all software. The Head unit dissects the pulse that has been converted to digital. The more sophisticated the sofatware written, the more that bounce back signal can be proceessed. meaning more details to show you.

But as far as the transmitter/transducer nothing has changed. It's what is does with that bouce back signal that good signal processing software can find little things a pure analog signal processor can not.

More money for digital = more details. Question for you, is that new details digital adds worth me paying any extra money for? So see what new features you have do a cost value analysis for yourself.

For instance a high end commercial radar will track an object relative to you, and give you that objects course and speed. To know that, it must know a bit more like your speed, and which direction is true or magnetic north. Probably more than you'll want and definitely not something you want to pay $1000's extra for.

I hope this help you some?

Capt. Frank