GPS to RS-232/USB interface diagram. | Download Scientific Diagram
Frontiers | Time Synchronization for Wireless Sensors Using Low-Cost GPS Module and Arduino
PPS over USB
Time Server
GPS-721U-MRTU | ICP DAS USA Inc - Data Acquisition
So you want a Stratum 1 NTP server...
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GPS Time Sync Software for Windows OS – Off Grid Ham Radio OH8STN
Using the Sure Electronics GPS evaluation board for NTP
Microsecond accurate NTP with a Raspberry Pi and PPS GPS - Austin's Nerdy Things
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USB GPS Module – ODROID
Amazon.com: DIYmalls BN-180 GPS Module + CP2102 USB to TTL : Electronics
Amazon.com: Stemedu USB GPS Module GLONASS Beidou UBX-M8030-KT GPS Dongle Built-in Ceramic Antenna for Ar-duino Pixhawk Stratux, Better Than VK-162 VK-172 : Electronics
China Low Price Raspberry Pi GPS Module USB Port - Quotation - GNS COMPONENTS
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Comint India | Products - Fullview
USB GPS with PPS and pretty cheap too - Server operators - NTP Pool Project
ICP DAS GPS-721 GPS Receiver and 1 DO, 1 PPS Output Module communicable Over RS-232 and RS-485.
GitHub - ddrown/usb-gps: Stratum 1 NTP setup using USB to transfer GPS PPS info
USRP Open SDR B210 Metal Shell 705X Material, ΠGPS 10MHz USB PPS DC 6-12V | eBay
