The IMAe-11p is an Interface series device  operating in Infrastructure mode, allowing 802.11p  vehicles to be connected in an Vehicle to Infrastructure system.

 The applications layer of the 802.11p subsystem can be run either on the device which uses a linux OS , on the PMAe series of on street processors or tunnelled back to a central system.

It connects to an existing VMAe device and is powered from that device, a version which is powered from active PoE devices is also available for use where there is a non meshed connections. 

Its sister product the VMM-11p is available for installation in vehicles either for testing or in Emergency Vehicle Applications.

The IMAe-11p has three antennas one is reserved for GPS input used for clock and location the other 2 are used for either since channel dual diversity or as two individual 5.9 GHz radios operating 802.11p. The device has a range of 2km and can del with vehicles travelling at speed.


  • IEEE 802.11p Access Layer
  • IEEE 1609 Network Layer software
  • ETSI TC-ITS Network Layer software
  • V2X Facilities Layer software (option)
  • V2X Applications Layer software (option)
  • Dual or single antenna operation
  • Dual or single radio operation
  • Security co-processor with tamper-proof key storage (optional)
  • Tunneled interface to applications process
  • Range of 2km


  • Traffic signal priority
  • Emergency vehicles
  • Mining safety
  • Improved traffic flow and intersection safety for heavy vehicles



  • IEEE 802.11p – 2010
  • IEEE 802.11an – 2012
  • ETSI ES 202 663
  • IEEE 1609 – 2010
  • ARIB STD – T109 – 2012
  • SAE J2735 – 2009

Bandwidth: – 10MHz

Data Rates: – 3-27Mbps

Receiver Sensitivity: -100dBm @3Mbps

Environment:  -40º to +85ºC

Frequency: 5.9GHz

GNSS: 1.5m

Mobility & Multipath Tolerance

  • Doppler Spread: 800 km/hr
  • Delay Spread 1500 ns