Eco ProFessional 2 (with Digital Compass)

這次要開箱的一個相機用的GPS接收器。對於拍照需要紀錄gps點這一事，我還蠻執著的，畢竟在數位時代，照片數量越來越大，拍的照片地點也不少，特別是去拍照的過程中，如果沒有好好的紀綠點地點的話，會跟本忘了在那裡拍的。當然啦！有紀錄地點，對於像是拍火車這一類的活動更是是一件非常好的幫忙。

上：這就是裝好的樣子，這也是原廠的網路相片。

之前我用的方法是：https://blog.xuite.net/xcat1976/blog/173740932

AK-4NⅢ Bluetooth GPS adapter for Nikon D700 加上藍芽的gps接收器 wb-202來使用。這個方法還不錯用，只是現在wb-202已經不生產，我的wb-202已經都非得開始外接電源了！所以，還始找是不還有其它的替代方案。當然啦！用其它

Holux M-241到也是不錯的方法，只是紀錄器本身沒有辦法支撐十幾天的紀錄。 後來買了一個QSTARZ 科思達旅遊達人記錄器BL-1000ST，這個功能蠻強大的。只是它和手機的通訊雖然和wb-202一樣是用藍芽，但是裡面的資料卻不是，所無法和原本ak-4nIII連線，加上，原本ak-4nIII也有生產類似這次開箱的東西。但是後來這家公司已經找不到了。所以，就找到現在開箱的這個裝置了。 用了一段時間後，感覺上還算不錯。而且，它竟然還有電子羅盤呢！

<下面這一段是取自原廠網站：http://di-gps.com/shop/index.php?route=product/product&product_id=64#!prettyPhoto

~ Embeds geo location information to the EXIF header of the image file

~ Built-in Digital Compass

~ Accommodating Housing Design, workable on different models of camera with large-diameter lens such as Tamron SP24-70mm F/2.8 Di VC USD (Model A007) and SP15-30mm F/2.8 Di VC USD (Model A012) lenses

~ Auto calibration digital compass according to surroundings magnetic field

~ Version with Locking Nut

~ Support Nikon D5, D4, D4S, D3, D3S, D3X, D500,D850, D810A, D810, D800, D800E, D700, D300, D300S, D2XS, D2X, D2HS, D200 & Fujifilm S5 Pro

~ Direct replace GP-1/GP-1A

~ Extremely low power consumption: 19mA, it is less than 1/3 of current consumption of GP-1

~ Extremely light in weight: 18g

~ Extremely small in size

~ Extremely fast TTFF (Time To First Fix) and fast TTFF at low signal levels

~ Extremely high sensitivity (Tracking Sensitivity: -165 dBm), provide superior positioning information in environments, through urban canyons, and under dense foliage

~ Ultra high performance MTK MT3339 GPS chip

~ 66-Channels GPS Receiver for fast acquisition and reacquisition

~ SBAS, WAAS, EGNOS, MSAS, GAGAN Demodulator

~ Built-in 10 pin connector for Nikon MC-30/MC-30A or compatible shutter release.

~ Direct attached to the 10pin socket

~ NMEA 0183 data protocol.

~ Built-in patch antenna, no external antenna required

~ Support both RAW (NEF) and JPEG

~ No Setup Required

~ Built-in 10 pin connector not compatible with Nikon WR-T10 "Fn"button.

*All information and specifications are subject to change without any notice.

General
Chipset	MTK 3339
Frequency	L1, 1575.42 MHz C/A code 1.023 MHz chip rate
Channels	66 channel all-in-view tracking
Sensitivity	-148dBm (Cold Start), -165 dBm tracking
Position Accuracy (Open Sky)
w/o aid	10 meters, 2D RMS
DGPS	SBAS, WAAS, EGNOS, MSAS, GAGAN 5 meters, 2D RMS
Acquisition Time (Open Sky)
Reacquisition	Less then 1 sec., average
Hot start	1 sec., average
Warm start	34 sec., average
Cold start	35 sec., average
Digital Compass
Magnetic Heading Accuracy	±5° at zero pitch/roll (95% probability) ~3 seconds to update the correct heading in camera after steady
Landscape	Tilt compensated
Portrait	Heading information not applicable in portrait orientation
Dynamic Conditions
Altitude:	Maximum 18,000m
Velocity	Maximum 515m/s
Acceleration:	Maximum 4G
Power
Voltage	+6V Supply from DSLR Camera
Current	19 mA aveage
Others
Interface	Direct attached to 10 pin remote terminal
Dimension	42mm x 22mm x 21mm
Operating Temperature	-10 to +45 Degrees Celsius
Operating Humidity	5% to 95%, No Condensing

  下：這是開箱的樣子。很小巧，不過，不要沒有裝鏡頭就裝上這個小裝置，然後就放進包包裡，有時候會把它壓壞。

下、另一面的樣子。