Mini-GPS2 and Canopy GPS Synchronization

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Mini-GPS2 and CanopyGPS Synchronization
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Mini-GPS2

• Takes advantage of the timing port
• Timing Over the Power Port has known issues
• M12 GPS Receiver
• Same GPS receiver used by standard Canopy
  equipment
• Displays all satellite information on GPS Status
  page on all Canopy units
• Provides GPS synchronization
• to sixteen (16) Canopy units
• simultaneously

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Mini-GPS2 Features

• Outdoor rated NEMA4 enclosure for outdoor
  mounting
• Operates on 110/220 VAC or 12-32 VDC
• Allows use of any custom networking device,
  including VLAN and Layer 3 options
• No firmware to fail or to continuously update
• Includes Timing 3000 GPS
• antenna and mounting
• hardware

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GPS Synchronization and the Relationship to
Canopy RF
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Time Division Duplexing (TDD)

• GPS is used to enable Time Division Duplexing
• Method Canopy uses for data transmission
• Effective method of radio transmission
• Synchronizes the RF transmission and reception
• Radios only transmits or receive at once never
  both
• GPS is a worldwide clock for collective
  synchronization
• Does not turn on and off the RF transmitter

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GPS and Canopy Spectrum Analysis

• TDD is highly favorable because of the amount of
  the frequency spectrum that each Canopy unit
  covers. A full Canopy RF signal covers almost
  40MHz in the 2.4GHz, 5.2GHz, and 5.7GHz frequency
  bands.

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GPS and Canopy Spectrum Analysis

• The amount of spectrum used is also important for
  frequency layout throughout a Canopy network.
  GPS will help to insure all radios are in unison.
  

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Canopy GPS Synchronization

• GPS controls RF transmission cycle by TDD
• GPS does not control the RF signal power level
• Without a sync (GPS or Generating Sync an AP/BH
  will not transmit at all
• GPS is required at all locations where a Canopy
  radio is in range of another Canopy radio of the
  same frequency band. Including remotely
  installed APs.
• Problems with a conflicting synchronization are
  seen in data packet loss (ping times, etc)