Quote Originally Posted by Alphahawk View Post
No sonar expert here but my career was in missiles and radar for 38 years....very familiar with CHIRP. It was first designed for use in radars for the same reason you want it for crappie....target separation.....in radars CHIRP is also used for other functions as well. Theoretically the lower price units you see that are advertised as CHIRP are CHIRP...but the frequency spread is nowhere near as wide as say a five thousand dollar unit....and the high end unit can give you great separation at 10,000 feet of depth. Obviously you are not worried about that...LOL. But the bigger the frequency span the better the target separation. CHIRP can also be used in your di and si....which would really blow us away with what we would see. As with all things today it is about cost. The Digital Signal Processors are much cheaper than years ago...and will continue to drop in price which will be good for us. But right now a high end CHIRP unit is not in most folks price range. The transducer has a big part in it also....better transducer more cost. As Bob said I also would want to see a CHIRP unit in operation....I have seen the Dragon Fly 7 and I saw nothing there that would make me want to buy one....and give up my now obsolete HB 899.

Regards

When the first came out with Side Imaging it made me think of SLAR.