A20 is regarded as an highly integrated, semi-open structure and modular designed RTK
system independently researched by FOIF. GNSS antenna,data link, GPRS/CDMA,Li-Ion
which is convenient in the products maintainance and upgrade. Stable industry standard
two data transmission ways (GPRS/CDMA, data Link),we can use 3G function of the
With high accuracy, fast tracking function of inner GNSS mainboard,A20 can track the
satellite signal as more as 220 channels simultaneously.
Highly sealed, waterproof, dustproof, shockproof, low power consumption are its basic
inspecting rules. With super and weatherable OLED screen built on A20 receiver, the real
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battery, memory device, bluetooth etc. are all focused in one receiver. Moreover, GNSS
antenna, datalink and battery are independently modules which are easy to replace thus
handheld for A20 has inner or external GPS antenna and camera for optional function to
upgrade this handheld to a GIS collector. 3G memory device is also optional for the hand-
held, thus can further upgrade to a highly accurate GIS collector. Meanwhile, besides the
mobile phone to do the RTK job, in this way, we can say A20 has already existed in 3G
time information of the receiver can be shown on the screen. 4 lights and 6 buttons are
easily used to set the receiver, and the voice aided is helpful to the outdoors surveying.
Downloading and backups of the static data could be convenient because of the inner SD
slot, thus resolves your trouble for the insuffcient memory.
A20 User Manual
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