ECHOMAP UHD2 7" cv
A 6.1-inch keyed-button fishfinder/chartplotter combo with built-in CHIRP sonar and ClearVu scanning for boats up to 32 GB of chart storage.
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Haiyang

The Haiyang HD-77CF is a 7-inch chartplotter/fishfinder combo with dual-frequency sounding up to 1.2kW and IMO Resolution MSC.112(73) compliance.
Technical
| Display Screen | 7 inch wide color LED backlight |
|---|---|
| Power Supply | DC 12V ~ 36V (±10%) |
| Operation Temperature (Display Unit) | -15°C ~ +50°C |
| Operation Temperature (Antenna Unit) | -25°C ~ +70°C |
| Performance Standard | IMO Resolution MSC.112(73) |
| Back-up | SD Card (Optional) |
| Optional | HAIYANG Chart with SD Card |
| GPS Receive Type | L1 Frequency (1575.42MHz), C/A code |
| Number of Channel | 50 channel over |
| Accuracy (Position) | 2.5m CEP |
| Accuracy (Tracking) | 2.0m CEP (HGP-430 Spec) |
| Sensitivity (Acquisition) | -140 dBm (HGP-430 Spec) |
| Sensitivity (Tracking) | -149 dBm (HGP-430 Spec) |
| Data Update Rate | 1 Second |
| GPS Support | DGPS, SBAS (WAAS, etc) |
| Display Method | Mercator projection |
| Display Mode | True motion/North up/Course up/Head up |
| Latitude Limits | Between 85°N to 85°S |
| Map Scale | 0.05NM to 1,500NM |
| Map Datum | WGS-84 |
| Waypoint | 20,000 points |
| Track Point | 50,000 points |
| Route | 100 Routes |
| Draw Point | 1,000 points |
| Area Name | 1,000 points |
| Chart Data | Built-in/C-MAP/HY Chart (SD Card) |
| Output Data | NMEA-0183 |
| Input Data | NMEA-0183 |
| Alarm | Arrival, Anchor, Off course, Interval timer, AIS (CPA, TCPA) |
| Fishfinder Display Mode | Normal (single/dual-frequency), bottom-lock, Bottom-zoom, A-scope |
| Fishfinder Frequency | 50 and 200 kHz (single or dual) |
| Fishfinder Output Power | 600W (standard) / 1.2kW (option) |
| Depth Range Speed | 2.5m ~ 1,200m |
| Image Speed | Fixed 8 speeds (4/1, 2/1, 1, 1/2, 1/4, 1/8, 1/16, 1/32) and stop |
| Interference Rejection | 3 levels |
| Noise Rejection | 4 levels |
| Function | Gain (auto/manual), Range (auto/manual), Depth with Shift (auto/manual), Pulse length selection, White/Black line, Water temperature |
Overview
The Haiyang HD-77CF combines a 7 inch wide color LED-backlight chartplotter with a 50/200 kHz single- or dual-frequency fishfinder rated at 600W standard output (1.2kW optional), covering depth ranges from 2.5m to 1,200m. Its GPS receiver tracks over 50 channels on L1 (1575.42 MHz, C/A code), supported by DGPS and SBAS (WAAS) augmentation for 2.0m CEP accuracy. The unit stores up to 20,000 waypoints, 50,000 track points and 100 routes, and reads built-in, C-MAP or HY chart data from an SD card over a Mercator projection display. Built to IMO Resolution MSC.112(73), it runs on a DC 12V to 36V supply and its antenna unit is rated from -25°C to +70°C.
Questions
Position accuracy is 2.5m CEP, with tracking accuracy of 2.0m CEP on the HGP-430 antenna. Acquisition sensitivity is -140 dBm and tracking sensitivity is -149 dBm (HGP-430 spec), with DGPS and SBAS (WAAS etc.) support and a 1-second data update rate.
It has a 7-inch wide color display with LED backlight.
The fishfinder runs at 50 and 200 kHz (single or dual) with 600W output power standard, or 1.2kW as an option. Depth range is 2.5m to 1,200m.
It supports built-in charts, C-MAP, and HAIYANG charts loaded via SD card, with an optional SD card for chart data backup.
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