GPSMAP2008技术指标：
硬件和性能:
尺寸，长x宽x高: 11.2" x 7.0" x 4.6" (28.5 x 17.8 x 11.7 cm)
显示屏尺寸，长x宽: 6.9" x 5.2", 8.4" diagonal (17.5 x 13.2 cm, 21.3 cm diagonal)
分辨率，长x宽: 800 x 600 pixel
显示类型: SVGA display
重量: 1.4 kg
电池: none
电池使用时间: none
防水: 是（IPX7）
高灵敏度接收机: 无
NMEA输入/输出: NMEA 0183
地图和内存:
电子底图: 有
Preloaded maps: 无
可附加地图: 有
内存: N/A
支持存储卡: yes (g2 SD)
航点/收藏夹/位置: 5,000
航线: 50
航迹记录: 35,000 points; 30 saved tracks
特征:
兼容Garmin雷达: 无
兼容Garmin声纳: 有
兼容Garmin Marine Network™: 无
触摸屏: 无
支持AIS（跟踪目标船的位置）: 有
支持DSC（显示带有DSC的VHF无线电的位置数据）: 有
声音报警: 有
潮汐表: 有
打猎钓鱼日程: 有
太阳月亮□ 信息: 有
三维地图视角: 无
自动引导: 无
兼容美国XM WX天气预●报无线电: 无
建议路线规划: 无
语音播报（例如，前方500米右转）: 无
语音播报路名（例如，前方500米右转到霄云路） : 无
耳麦/音频输出: 无
音频/视频 输入/输出: 无
可便携的: 无
适用于汽车/摩托车: 无
GSD21 测深功能特征说明：
The GSD 21 analog sounder adds detailed sonar data to your compatible Garmin chartplotter.
Connect with CANet®
This black-box sounder connects directly to your chartplotter with a serial cable. To take advantage of UltraScroll™, which provides lightning-fast refresh rates, connect the GSD 21 to your chartplotter with CANet, Garmins 1-megabit proprietary network.
Get Great Shallow and Deep-Water Performance
The high-dynamic range sounder provides exceptional performance in water as shallow as one foot to depths as great as 1,500 feet. The GSD 21 can connect to dual-frequency transducer (50/200 kHz) for deep-water performance and 500 watts of transmit power, or a dual-beamwidth transducer (narrow/wide) for operation in shallow freshwater as well as deep water and a transmit power of 400 watts.
GSD 21: Puts eyes in the bottom of your boat
Please note: This product does not include a transducer. Garmin offers a complete selection of transducers that you can purchase separately as accessories.
