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疑難排解
在高樓林立或樹木遮蔽天空的環境可能會導致收訊不良的情雖然
WGM-302
接收很微弱或甚至是反射的
GPS
衛星信號但在此情況下定位的精確度也勢
必 會 受 到 一 定 的 影 響。
不穩定的大氣層變化亦會影響定位準確度然而若您發現無論信號好壞在地圖上
的位置卻總是偏移請確認您所使用的地圖其座標系統是否為6 標準的
WGS-
84
座 標 統。
WGM-302
利用內部儲存的初始資料包含前次儲存的最後有效位置時間與星
資料推算出前天空所在的衛星分佈並加以追蹤鎖定以達到最佳的定位效能
當內部儲存的初始化資料不正星曆資料已過期時會導致較久的定位時
若您持續超過三個月以上未使用本機或距離您上使用時的關機位置超過
800
里,
WGM-302
會採用冷開機模式來縮短定位時間
定位時請勿讓
2
GPS
裝置太靠近以免影響收訊
WGM-302
連結至電腦前請先確認
USB
裝 ,並
COM Port
在正常連線且確定有資料輸出的情況下
WGM-302
無法正常使用於導航
則請確認您的導航軟體所需的
NMEA 0183
格式並透過
WGM-302 Tool
設定
之。
產品保固
WGM-302
自購起含一年保購買產品後一年內若在正常使用情形
機身材質或功能有任何瑕疵或故障
Wintec
會提供免費維修及更換零件服務
PS/2
接腳定義
PS/2
界面之腳位各廠商定義皆不相同務必遵照下圖定義以確保正常動作
腳位 腳位定義 內線顏色
1 RS-232 RXD
2 TTL Level RXD
3 RS-232 TXD
4 GND
5 +5V
6 TTL Level TXD
標準
PS/2
公頭
18


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