Originally Posted by Matt1
Maybe semper can jump in here and clarify. There is obviously a number of people who believe these CHIRP systems are for the blokes who have no idea how to use a sounder correctly and/or tune one manually! Do you believe this to be the case?
No, I am not of that opinion.
CHIRP is an improved and advanced system in total.
Anyone currently using a traditional system is wise to stay with that system if it fits their style and needs.
Anyone who is undergoing a total re-fit or a new build should at least consider learning about CHIRP systems.
That is what my goal here on THT..to help provide technical information concerning all sonar systems.
In that way one can make a choice based upon technical information rather than advertising hype.
An informed choice.
This is a superior system compared to a traditional tone pulse sonar.
If not so..why has every manufacture spent the last several years in costly development....just to give everyone something "user friendly" ?
No, this is a better system.
And it is a system..both CHIRP sonar and CHIRP transducer.
Lets just begin with CHIRP transducers. (I will cover the Sonar itself later)
All sonars are only as good as their transducers.
Traditional tone pulse sonars are still limited by high power requirement to gain depth , signal to noise ratio and transducer quality.
CHIRP uses only a fraction of the power required by traditional tone pulse units...but transmits more energy into the water.
Increased energy onto the target means greater return echo energy which leads to improved target resolution.
Add a superbly sensitive CHIRP transducer.....the gain in target separation and resolution is impressive.
CHIRP transducers have higher quality ratings... a Q of 3 and less .
The lower the Q the less ringing.
The increase in round trip sensitivity of a CHIRP transducer over a traditional transducer is pronounced.
I have customers who are blown away with the improvement from a B60 to a B260...that is an increase of 250 times round trip sensitivity on the low band and 50 times on the high side.
The CHIRP B265 is 1000 times more sensitive on the low side than the B60...120 times on the high side.
The CHIRP B265 is 750 times more sensitive than the B260 on the low side and 70 times more sensitive on the high side.
The CHIRP B265 is the same size as the B260 but 750 times more sensitive.
Twice as good and the same physical size would be bragging rights.
But 750 times better........thats impressive.
You cannot debate just CHIRP sounder technology vs traditional sounders.
One must also include comparison of CHIRP transducers. vs traditional transducers.
Its a total system.