Difference between revisions of "Frequency Calibration via GPS"

From Land Boards Wiki
Jump to navigation Jump to search
Line 22: Line 22:
 
** Set to 2 Hz on PPS pin when not locked
 
** Set to 2 Hz on PPS pin when not locked
 
** SMA Female connector
 
** SMA Female connector
 +
 +
=== FTDI ===
 +
 +
* [[FTDI-49MM]]
 +
 +
== 50 Ohm Driver ===
 +
 +
* Used modified [[PulseGen]] card to drive 50 Ohms, 5V level output
  
 
== Videos ==
 
== Videos ==

Revision as of 13:31, 28 November 2020

8 Mhz Output synchronized to GPS satellites

Features

  • U-Blox NEO-7M GPS Module
  • Remote Amplified GPS Antenna
    • SMA Male connector
  • FTDI-49MM
    • Used to program the GPS module
  • Pulse Generator modified to provide 50 Ohms, 5V drive
  • Mini-360 Switching Power Supply
  • 5V out
    • 7-23V in

Parts

GPS

  • U-Blox NEO-7M GPS Module
    • U-Center Programming Software
    • Set to 8 MHz on PPS pin when locked
    • Set to 2 Hz on PPS pin when not locked
    • SMA Female connector

FTDI

50 Ohm Driver =

  • Used modified PulseGen card to drive 50 Ohms, 5V level output

Videos