GlobalSat decided to disable SN on BT-338 so that walking navigation is possible. However, by doing so, there will have a small wondering of GPS location when actually there is no movement.
I think this is the nature of any kind of GPS chipsets. Holux GPSlim 236 and GlobalSat BT-338 will be the same at this matter.
Imaging that you need to walk for more than 50 meters to make your GPS location move. I personally like SN disabled, which is what BT-338 is doing now. I am not sure about Holux GPSlim 236's SN setting.
glwang wrote:
to Bystander6:
所以我說9537 or 231是不是比起338 or 9553 or 236較適合SN,有沒有錯誤,請指教
如果說gr230(不是230+)或9537一代比較適合徒步導航,可以這麼說,但是231跟9537 II都是Sirf II Xtrac2.0的晶片,裡面的運算模式比較接近sirf III,微量的偏移,是不會顯示的,您可以參考一下,有一篇四款gps的比較,裡面包含gr230+,gr230+的運算方式應該跟gr231差不多,您可以看到該篇測試相較於其他三顆gps,微量偏移幾乎不會顯示
說一好沒兩好,也不是沒道理,不過基本上這種gps,本來就不是要給登山用的,相信也沒多少對應的軟體,這種gps,不是配nb就是配pda,這兩者的蓄航力都遠遠不及garmin的產品,更別堤防水性了,所以也別太在意這點了
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