VBOX Telemetry Radios

Posted in Telemetry Systems

Overview

Telemetry-moduleThe telemetry modules from Racelogic are radio modems for use with the VBOX range. Each module contains a high power radio modem capable of transmitting and receiving RS232 serial data.

RACELOGIC radios are used for three main purposes:

  • To transmit and receive differential correction information (DGPS) from a RACELOGIC Base Station for local position correction.
  • To transmit 'ADAS' data between 2-4 VBOX units, for live vehicle separation measurement.
  • To transmit VBOX serial data from a remote unit to a laptop PC at a maximum rate of 20 Hz.

There are a variety of telemetry systems available, employing a range of frequencies. Which version is used depends on the range over which they need to be employed, and local radio licensing regulations.

  • 869 MHz Radios
  • 915 MHz Radios
  • 2.4 GHz Radios
  • Variable Frequency Radios

For advice as to the most suitable type for your application it is best to contact us to discuss your requirements.

Each radio is supplied with a magnetic mounting antenna, and is connected simply to the VBOX via one cable. See radio overview for more info.

869 MHz

869 MHz Radios

RLRTMVAR-RadioThe 869 MHz radios can be used throughout Europe and have a max range of 3500 m. The radios can be used with a Base Station to provide DGPS corrections to a VBOX.

The Base Station variant (RLVBRTM869BS) is designed to connect to the Racelogic Base Station and transmit DGPS corrections to a remote VBOX.

The VBOX variant (RLVBRTM869RV) is designed to connect to a VBOX to receive DGPS corrections from a Base Station.

Transmission Range

  • Difficult environment (e.g. buildings, reinforced concrete): 400 m (1,300 Feet)
  • Open environment with antennas at ground level (e.g. vehicle roofs): 1000 m (3,200 Feet)
  • In view with Base Station antenna at height (e.g. building roof): 5,000 m (16,400 Feet)

Obstacles such as walls and trees can greatly affect the range.

 

Specification

  • Operating Voltage: 6 – 30 V DC
  • Radio Transmission Power: 10, 20, 50, 100, 200, 500 mW
  • Carrier Frequency: 869.40 – 869.65 MHz for European use
  • Base Station Duty Cycle: <10%
  • Radio Data Rate: 19,200 bps
  • RS232 Data Rate: 300 – 38,400 bps (configurable)

Physical

  • Module Dimensions: 88 x 49 x 9 mm
  • Operating Temperature: -30°C to +65°C
  • Storage Temperature: -40°C to +80°C

 Download datasheet here.

915 MHz

915 MHz Radios

Telemetry-moduleThe 915 MHz radios can be used in the USA, Brazil and Australia and have a max range of 3500 m. The radios can be used with a Base Station to provide DGPS corrections to a VBOX.

The Base Station variant (RLRTM915V2BS) is designed to connect to the Racelogic Base Station and transmit DGPS corrections to a remote VBOX.

The VBOX variant (RLRTM915V2RV) is designed to connect to a VBOX to receive DGPS corrections from a Base Station.

Transmission Range

  • Difficult environment (e.g. buildings, reinforced concrete): 300 m (1,000 Feet)
  • Open environment with antennas at ground level (e.g. vehicle roofs): 700 m (2,300 Feet)
  • In view with Base Station antenna at height (e.g. building roof): 3,500 m (11,000 Feet)

Note: Obstacles such as walls and trees can strongly reduce the range.

Specification

  • Input Voltage: 6 – 30 V DC
  • Input Current - Receiving: 125 mA @ 5 V
  • Input Current - Transmitting: 760 mA @ 5 V
  • Radio Transmission Power: 1 W
  • Base Station Duty Cycle: <10%
  • Carrier Frequency: 915 MHz
  • Radio Data Rate: 115,200bit/s
  • RS232 Data Rate: 115,200bit/s

Physical

  • Module Dimensions: 95 mm x 60 mm x 33 mm
  • Operating Temperature: -20°C to +60°C
  • Storage Temperature: -40°C to +85°C

2.4 GHz

2.4 GHz Radios

Telemetry-moduleThe 2.4 GHz range can be used in most countries. Depending on the power output, the radios have a max. range of 2400 m or 4000 m and can be used with a Base Station to provide DGPS corrections to a VBOX.

2.4G Hz radios can be used to provide the link between two or more VBOX units at a range of 600m, which is used for ADAS testing where measurement of vehicle separation is required.

It can also be used to transmit VBOX serial data from a remote unit to a laptop PC at a maximum rate of 20Hz.

All 2.4 GHz radios are available with a transmission power of 50 mW or 125 mW. Please establish which output power is permitted in your country.

Transmission Range

  • Difficult Environment (e. g. buildings, reinforced concrete):
    125 mW (e.g. USA, Canada, Russia, China): 200 m (600 feet)
    50 mW (Japan): 120m (400 feet)
  • Open environment with antennas ground level (e.g. vehicle roofs):
    125 mW (e.g. USA, Canada, Russia, China): 500m (1300 feet)
    50 mW (Japan): 400m (800 feet)
    10 mW (EU): 400m (800 feet)
  • In view with Base Station antenna at height (e.g. building roof):
    125 mW (e.g. USA, Canada, Russia, China): 4000m (13,000 feet)
    50 mW (Japan): 2400m (8000 feet)
    10 mW (EU): 2400m (8000 feet)

Note: Obstacles such as walls and trees can strongly reduce the range

Specification

  • Input Voltage: 8 – 30 V DC
  • Input Current - Receiving: <200 mA
  • Input Current - Transmitting: <200 mA
  • Radio Transmission Power: 10 mW, 50 mW or 125 mW
  • Base Station Duty Cycle: <10%
  • Carrier Frequency: 2.4 GHz
  • Radio Data Rate: 500kbit/s
  • RS232 Data Rate 115,200bit/s (configurable)

Physical

  • Module Dimensions: 95 mm x 60 mm x 33 mm
  • Operating Temperature: -20°C to +60°C
  • Storage Temperature: -40°C to +85°C

Download datasheet here.

VBOX to PC Telemetry Radios

A VBOX telemetry pair of radios (RLRTM24VBT) allows a VBOX to communicate with a laptop running VBOX Tools. Communication can be bi-directional so the laptop will be able to change the VBOX setup as well as receive live data.

RLRTM24VBT

 

ADAS Telemetry Radios

ADAS Single Target

RLRTM24TR radios can be used to transmit data from a target vehicle to a subject vehicle and vice versa, so both vehicles can calculate separation data live.

RLRTM24TR

 

ADAS MultipleTarget

RLRTM24MT/ RLRTM243T radios enable the simultaneous calculation of parameters from two or three target vehicles. The data flows only in one direction but allows two target vehicles to transmit their data to one subject vehicle, which then can calculate separation data live.

RLRTM243T 

DGNSS Telemetry Radios

Moving Base

RLRTM24MBC/S radios are used to transmit and receive corrections from VBOX 3i RTK units within a Moving Base setup.

A Moving Base radio is programmed as server when transmitting (Vehicle equipped with the Moving Base VBOX) or client when receiving RTK correction messages. There is no limit to the number of receivers (RLRTM24MBC) that can get corrections from a transmitter (RLRTM24MBS).

RLRTM24MBS-RLRTM24MBC

DGNSS Base Station RTK

RLRTM24BS/RV radio modules are for use with a static DGNSS Base Station. These transmit a much longer correction message at a much lower rate than the Moving Base system.

There is no limit to the number of receiving radios that can get corrections from a transmitting radio. Please note that we have various Base Station radio options available (RLRTMVAR, RLRTM869) which might be more suitable for use in your country.

RLRTM24BS-RLRTM24RV

Variable Frequency

Variable Frequency Radios

RLRTMVAR-RadioVariable frequency radios can be set to transmit and receive data between 403 and 470 MHz. The variable frequency and power of these radios makes them accepted in many countries. Please check local RF licensing regulations.

With a typical max. range of 10km (at 500 mW), the radios can be used with a Base Station to provide DGPS corrections to a VBOX.

Racelogic supply a special version of this radio for China and Korea. Please contact your distributor for further information.

Transmission Range

  • Difficult environment (e.g. buildings, reinforced concrete): 1-2km (max. 6,561 ft)
  • Open environment with antennas at ground level (e.g. vehicle roofs): 3-5km (max. 16,404 ft)
  • In view with Base Station antennas at height (e.g. building roof): 6-10km (max. 32,808 ft)

Specification

  • Operating Voltage: +3 to +9 V DC (Options 1) | +6  to +30 V DC (Options 2)
  • Radio Transmission Power: 100, 200, 500, 1000 mW
  • Base Station Duty Cycle: <10%
  • Carrier Frequency: 403 – 473 MHz
  • Radio Data Rate: 19200 bps (25kHz channel)
  • RS232 Data Rate: 300 – 38,400 bps (configurable)

Note: Obstacles such as buildings, walls and trees can strongly reduce the range.

Download datasheet here.