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Old 07-23-2013, 10:16 AM
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Default Chirp

There is no such thing as "baby" CHIRP. You either operate broadband (FM) or not. The only differentiating factors between brands are the bandwidths and frequency bands they employ, the pulse lengths used and potentially other modulation techniques used to improve the signal.
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Old 07-23-2013, 10:21 AM
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There is no such thing as "baby" CHIRP. You either operate broadband (FM) or not. The only differentiating factors between brands are the bandwidths and frequency bands they employ, the pulse lengths used and potentially other modulation techniques used to improve the signal.
I believe "Baby CHIRP" is the popular name given to the single channel CHIRP sonar, as opposed to the dual channel CHIRP sonars like the GSD26 or BSM2 which supports 2 transducers simulateously.
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Old 07-23-2013, 11:05 AM
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Dragonfly is dual channel CHIRP: It uses two different operating bandwidths feeding separate transducer ceramics (elements). Both channels operate and can be adjusted independently of each other. One supports the traditional sonar view using a conical beam, while the other supports a DownVision view using a fan beam.
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Old 07-23-2013, 11:12 AM
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Dragonfly is dual channel CHIRP: It uses two different operating bandwidths feeding separate transducer ceramics (elements). Both channels operate and can be adjusted independently of each other. One supports the traditional sonar view using a conical beam, while the other supports a DownVision view using a fan beam.
Is it your intention to come in here and confuse people?
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Old 07-23-2013, 11:38 AM
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There is no such thing as "baby" CHIRP. You either operate broadband (FM) or not. The only differentiating factors between brands are the bandwidths and frequency bands they employ, the pulse lengths used and potentially other modulation techniques used to improve the signal.
Goodness...Lighten up........and also welcome to the forum....nice to have you...I see that you are a representative from Raymarine.
The term "Baby CHIRP" of course is just a nick name we like to use here is the THT community..

In reality it is of course the Garmin 547 / 741xs is a "single band CHIRP system"...and a VERY popular system here.
And..."Baby CHIRP" has a nice sound to it.





Baby CHIRP?..isn't that was was in your nest this Spring?"
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Old 07-23-2013, 12:32 PM
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Sorry, I am not trying to confuse anyone with respect to CHIRP and the baby CHIRP nickname. Just wanted to point out that Dragonfly and Raymarine's new CP100 black box are true CHIRP sonars using CHIRP transducers. The CHIRP transducer these products use is a unique CHIRP transducer developed by Raymarine. Yes it a smaller transducer than the larger Airmar models but the ceramic elements used for both the DownVision and the conventional sonar in the ducer are ceramics designed to transmit CHIRP. If anyone would like to see how this sonar performs there is a gallery of screen shots posted here on the Raymarine Facebook page - https://www.facebook.com/media/set/?...1&l=94d0944694
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Old 07-23-2013, 12:48 PM
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Originally Posted by bvlad View Post
Sorry, I am not trying to confuse anyone with respect to CHIRP and the baby CHIRP nickname. Just wanted to point out that Dragonfly and Raymarine's new CP100 black box are true CHIRP sonars using CHIRP transducers. The CHIRP transducer these products use is a unique CHIRP transducer developed by Raymarine. Yes it a smaller transducer than the larger Airmar models but the ceramic elements used for both the DownVision and the conventional sonar in the ducer are ceramics designed to transmit CHIRP. If anyone would like to see how this sonar performs there is a gallery of screen shots posted here on the Raymarine Facebook page - https://www.facebook.com/media/set/?...1&l=94d0944694
I did an analysis of Dragonfly here: http://www.thehulltruth.com/marine-e...ml#post5633932. No one is disputing that it is CHIRP but it does deviate from the fuller implementation of first generation high-end boxes as mentioned. In that regard, the term "baby" is as good as any to make the point that not all CHIRP systems are the same.
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Old 07-23-2013, 02:33 PM
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Wasn't this a "Garmin vs. Furuno shoot out" ? I am not interested in little, jr., baby, mosquito, dragonfly chirps....
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Old 07-23-2013, 03:42 PM
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Sorry, I am not trying to confuse anyone with respect to CHIRP and the baby CHIRP nickname. Just wanted to point out that Dragonfly and Raymarine's new CP100 black box are true CHIRP sonars using CHIRP transducers. The CHIRP transducer these products use is a unique CHIRP transducer developed by Raymarine. Yes it a smaller transducer than the larger Airmar models but the ceramic elements used for both the DownVision and the conventional sonar in the ducer are ceramics designed to transmit CHIRP. If anyone would like to see how this sonar performs there is a gallery of screen shots posted here on the Raymarine Facebook page - https://www.facebook.com/media/set/?...1&l=94d0944694
To get the full CHIRP advantage it is not sufficient to have a box CHIRPing, in addition a very good transducer is needed. With the exception of two Kongsberg/Simrad transducer and a few Furuno transducer I've not seen a high end transducer for leisure use from any other company than Airmar. With CHIRP it's even more difficult to design an excellent transducer so I don't think It's likely we will see any other company than Airmar delivering a high quality CHIRP transducer. The performance of DragonFly based on the screen shots I've seen is not something the Lowrance guys will loose their sleep over. The performance is slightly better than Elite HDI in some respects and worse in other. With a better transducer DragonFly (and CP100) may have produced much better results, but since these units are not designed to utilize Airmar CHIRP transducers these products will have to compete with Elite HDI and not BSM-2 and GSD26. 547xs and 727xs from Garmin are completely different animals, since these units can use excellent Airmar CHIRP transducers like B75 and B175 their main limitations compared to the expensive CHIRP systems is one channel versus two channels and the limited screen sizes.
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Old 07-23-2013, 05:08 PM
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If you're fishing in 100' of water or less there is no need to spend the money on Chirp unless you think the guys at Garmin need another condo in Hawaii. There are some excellent fishfinders that have amazing results up to 500' or so that are about half the price of chirp systems.

Personally, from what I've seen so far, chirp is over marketed for the current state of the technology. I'd really like to see some great comparison screen shots.

I also believe that chirp is the next best thing in fish finders when the technology is mature. It may be now but I haven't been sold just yet.
Actually I would love to be able to afford a DFFUHD and transducer primarily for sea bass, in 80 ft of water. Also for striper fishing in the same depth. And I'm sure it would be nice for tuna just as well. Better discrimination between dogfish and stripers, or scup and seabass would save me a ton of bait and time
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Old 07-23-2013, 06:08 PM
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Originally Posted by bvlad View Post
Sorry, I am not trying to confuse anyone with respect to CHIRP and the baby CHIRP nickname. Just wanted to point out that Dragonfly and Raymarine's new CP100 black box are true CHIRP sonars using CHIRP transducers. The CHIRP transducer these products use is a unique CHIRP transducer developed by Raymarine. Yes it a smaller transducer than the larger Airmar models but the ceramic elements used for both the DownVision and the conventional sonar in the ducer are ceramics designed to transmit CHIRP. If anyone would like to see how this sonar performs there is a gallery of screen shots posted here on the Raymarine Facebook page - https://www.facebook.com/media/set/?...1&l=94d0944694
Those new A series look pretty cool. Maybe you could start a thread and tell us about those. Also a thread on what is the difference between the new Clear Pulse Digital Sonar and the previous DSM Series.

https://www.youtube.com/watch?featur...&v=liei0Vyrz4A

Thanks!
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Old 07-28-2013, 01:01 AM
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Still no real world footage of Furuno Chirp? Killing me.
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Old 07-28-2013, 05:22 AM
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+1. I'd really like to see some Furuno screen shots.
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Old 07-28-2013, 07:41 AM
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CME,
This is how shallow water stripers mark in a river on a GSD 26, totally overkill as lots of pulse tone sounders would do just as well. The second and third photos are cod, haddock and pollack on Jeffrey's Ledge in 200', this is where I see it's true potential. Those vertical lines are our bait rigs and 16 ounce sinkers.
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Old 07-28-2013, 08:00 AM
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For mostly under 200', am I better off with furuno 587/p66 ducer or the garmin 547 baby chirp. I like the bigger screen so I can see from back of boat while fishing. Furuno is about 300 more? This would be replacing 9 year old furuno 600l that works fine. I also have a garmin 740 for chart plotter which I am happy with.
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Old 07-28-2013, 09:30 AM
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For mostly under 200', am I better off with furuno 587/p66 ducer or the garmin 547 baby chirp. I like the bigger screen so I can see from back of boat while fishing. Furuno is about 300 more? This would be replacing 9 year old furuno 600l that works fine. I also have a garmin 740 for chart plotter which I am happy with.
Since you have the 740...just add a Furuno FCV585..they are in the $950 range.
And if you go with the 547xs ... the Bluetooth wireless can be very useful.
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Old 08-02-2013, 06:04 PM
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Finally a freaking picture. This was posted on Furuno's Facebook page. You can clearly see the thermocline and good target separation and they say the small clutter is plankton? I don't know about that but if so that's pretty awesome.
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Old 08-02-2013, 06:20 PM
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Finally a freaking picture. This was posted on Furuno's Facebook page. You can clearly see the thermocline and good target separation and they say the small clutter is plankton? I don't know about that but if so that's pretty awesome.
What transducer? My friend has a DFF-1-UHD and a R-111lh along with a complete navnet 3d system(thanks Gill) waiting for the boat to get finished.
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Old 08-02-2013, 06:32 PM
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It didn't say in the post.
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Old 08-02-2013, 06:40 PM
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.... What ever happened to this side by side comparo?????

I B's in the Need-To-See Business!!
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