The Furuno DFF1UHD+ is a multi-channel black box network fish finder designed for NavNet TZtouchXL. It combines up to 1 kW of CW and TruEcho CHIRP fish finder power with 230 kHz or 455 kHz CHIRP Side-Scan in a single compact unit, making it a natural addition to helms running the TZT22X, TZT24X or the black box TZTBBX.
ACCU-FISH fish size assessment, bottom discrimination (with a compatible transducer), A-Scope and separate fishing and cruising auto gain modes are all built in, along with fish school alarms. CHIRP Side-Scan displays out to 750 ft (approx. 229 m) on each side of the vessel and can be viewed full screen or in split-screen layouts, with a choice of eight display colours. Colour-coded waterproof connectors and a compact housing keep installation simple.
A range of transducer combinations is supported. Without side-scan: single CHIRP, dual CHIRP, single CW, or single mid-CHIRP with CW. With side-scan: single CHIRP or single CW paired with CHIRP Side-Scan.
The DFF1UHD+ replaces the Furuno DFF1-UHD network sounder.
Specifications
| Type | Black box network fish finder — TruEcho CHIRP with CHIRP Side-Scan |
|---|---|
| Designed for | Furuno NavNet TZtouchXL (TZT22X, TZT24X, TZTBBX) |
| Fish finder frequency | CW 50–200 kHz; CHIRP 40–225 kHz |
| Side-scan frequency | CHIRP at 230 kHz or 455 kHz centre frequency |
| Output power | 150 W, 300 W, 600 W or 1 kW |
| Transducer compatibility | 300 W, 600 W or 1 kW (MB1100 matching box required for some CW transducers) |
| Display range | 6 to 4,000 ft (approx. 2 to 1,200 m) |
| Side-scan range | Up to 750 ft (approx. 229 m) to each side |
| Fish finder modes | ACCU-FISH, A-Scope, manual gain, auto gain (fishing / cruising), TruEcho CHIRP, bottom discrimination (compatible transducer required) |
| Picture advance | 8 steps: x4, x2, x1, 1/2, 1/4, 1/8, 1/16, stop |
| Alarms | Fish school; fish school for bottom lock |
| Side-scan views | Full screen, 1/2, 1/3, 1/4 and 1/6 screen; eight display colours |
| Power supply | 12–24 V DC |
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