CSH-10 vs Simrad SY50
The two sportfish omnis, published spec by published spec.
Sportfish boats shopping omni in the US usually end up weighing two names: Furuno's CSH-10 and Simrad's SY50. Here is what each maker publishes, side by side, with no spin. Figures come from Furuno USA's CSH10 materials and Kongsberg's SY50 product page.
| Published spec | Furuno CSH-10 | Simrad SY50 |
|---|---|---|
| Type | 360° omni scanning sonar | 360° omni scanning sonar |
| Operating frequency | 83.5 kHz, selectable 81.5–85.5 kHz | Adjustable 54–60 kHz |
| Published operating range | Range scales to 2,000 m; rated detection to 900 m | Up to 2,000 m |
| Beam stabilization | Standard motion sensor; transmit and receive stabilized independently | Full stabilization included |
| Tilt | Tilt lever control; auto functions | +10° to −60° electronic, 1° steps |
| Picture colors | 32 | Not published |
| Transducer drop below hull | 400 mm or 600 mm hull units | 40 cm or 60 cm |
| MFD integration | Native on NavNet TZtouchXL (software 25.11+), with chart overlay | Simrad ecosystem |
| Published US price | $91,095 MSRP less hoist, shaft and cables | Not published by Kongsberg; dealer quote |
How to think about the differences
The biggest published difference is frequency. The CSH-10 works a band around 83.5 kHz; the SY50 works 54–60 kHz. In practice, higher frequency buys resolution: finer separation between a single billfish and the bait it is shadowing at the ranges sportfishermen actually fish. Lower frequency propagates farther per watt, a tradition from the purse-seine world the SY50 descends from. The CSH-10's other headline advantages are its 32-color picture, its published 900 m rated detection with the standard motion sensor, and the fact that on a TZtouchXL it behaves like a native sensor with sonar-on-chart overlay, so it folds into the helm most US sportfish boats already run.
If you fish where omni boats search at 600 m and in, want the picture on your NavNet glass, and want published US pricing you can total part by part, the CSH-10 case is straightforward. Our price builder totals every published part, and the fit checker answers the 400 vs 600 mm question.
Common questions
Which frequency is better, 83.5 kHz or 54 to 60 kHz?
Neither wins everything. Higher frequency gives finer target separation on bait, individual pelagics and structure at sportfishing ranges; lower frequency holds energy longer in the water, which suits very long search ranges. Both makers publish 2,000 m class operating range.
Do they fit the same hole?
Both drop a cylindrical omni transducer through a hull tube on a raising hull unit with roughly 400/600 mm of travel, so the carpentry conversation is similar. The tube, tank and wiring details are brand-specific; your installer plans for one system.
Why does OmniCSH cover the Furuno side more deeply?
This site is dedicated to Furuno omni sonar, and our quote network is Furuno-authorized. The Simrad figures here come from Kongsberg's published SY50 page so you can compare honestly.
Price the CSH-10 for your boat
We have the contacts and the expertise to recommend the right installer for your boat. We work with a network of licensed, insured, certified and Furuno-approved dealers, and because of the volume we send them, we have pre-negotiated discounted rates. Tell us about the boat and we'll come back with a recommendation and pricing.
- Recommendations from people who work in marine electronics every day, not a call center.
- Pricing through dealers who have pre-negotiated volume rates with us.
- Your details go to one recommended dealer, never to a list.