You don't have to buy anything, the adapter usb to serial is already on the board, you have to install only the driver that you can download from here: http://navspark.mybigcommerce.com/resources/
Once you have installed the driver, your syste…"
all the Navspark series uses a USB to Serial driver that you can find in the download page. Once you have installed the driver, you have to select the proper SERIAL connection in both software in order to see something ;-)
in my experience, you can reach less then 20cm accuracy, even with a small and cheap antenna, the problems start with the "stability" of the signal (i.e. jumping) and repeatability. Next week I should be able to run some tests with the Act…"
The Septentrio PolaNt antennas are survey-grade antennas like the Novatel GPS-701-GG. They are not really cheap (almost 500€ for the Septentrio and 700€ for the Novatel).
Depending on the application you are working on, and the precision y…"
have you ever heard about this antenna: http://www.septentrio.com/products/antennas/polant-x-sf
These are the specs I've found.
Gain 26 ± 2 dBNoise Figure 2.5 dB maxInput Voltage +3 to +15 VDCCurrent 30 mA (typ)Impedance 50 ΩVSWR ≤ 2…"
Thanks for your support