Stalker Intelligent Technologies - Speed Measurement | Traffic | Transportation | Surface Velocity | Sports
Stalker Sports Speed Sensor
Sports Radars have special requirements, whether it is measuring a baseball, automobile, speedboat, or snowmobile. Greater accuracy is needed inside a narrower speed range. Look to the Sports Speed Sensor to meet those requirements.
- FEATURES
- SPECIFICATIONS
- ACCESSORIES
- DOWNLOADS
Features of the Stalker Traffic Control Sensor
- Direction sensing (closing or away, simultaneous closing/away targets)
- Current and peak speed reporting
- Speed units selectable: MPH, km/h, nautical miles/hr (knots), feet/sec, meters/sec
- Mode selection – 15 modes covering various min/max target speed ranges and target type (normal, ball)
- Unit or tenths resolution selection
- Adjustable sensitivity
- Adjustable threshold speed alarm output
- RS-232 serial interface supporting baud rates up to 38400
- Selectable output protocols and data formats
Sports Speed Sensor Applications
baseball scouting and evaluation; team and individual sports (soccer, hockey, tennis, golf, cricket); sport performance measurement; radio-controlled vehicle applications; baseball pitching training equipment; snowmobile timing; watercraft and boating applications.
The Stalker Sports Speed Sensor ...........................
General Specifications
Type |
Stationary Doppler Radar Speed Sensor |
| Operating Frequency | 34.7 GHz (Ka-Band) |
| Stability | +/-100 MHz |
| Power Requirements | Voltage: 9-16 VDC for SN ST6560 and below Current: (at 12 VDC nominal) |
| Environmental | Operating: -30° to +70°C, 90% relative humidity Non-operating: -40°C to +85°C |
| Mechanical | Weight: 1.15 lb. (0.52 kg) Diameter: 2.6 in. (6.7 cm) Length: 4.7 in. (11.8 cm) Case Material: Aluminum Die Cast |
| Accuracy | +/- 0.3% - Speeds are rounded to the nearest unit or tenths of a unit depending on the unit resolution setting |
| Auto Self-Test | Performed every 10 minutes while transmitting |
| Speed Range | 1 MPH to 300 MPH (1.6 to 480 KM/H) |
| Aux Output | TTL-compatible logic output is provided that can be configured to activate (HIGH) when a target speed exceeds a configured theshold |
Microwave Specifications:
| Antenna | Conical horn |
| Polarization | Circular |
| 3DB Beamwidth | 12° +/- 1° |
| RF Source | Gunn-Effect diode |
| Receiver Type | Two Direct-Conversion Homodyne receivers using four low-noise Schottky battier mixer diodes |
| Power Output | 10 mW minimum |
| Power Density | 1 mW/cm2 maximum at 5 cm from lens |
Factory Configuration (defaults in bold)
| Mode | 16 modes are provided to set target speed measurement method and min/max speed range: 0 – Normal: 0 to 140 MPH (0 to 225 KPH) 1 – Normal: 5 to 140 MPH (8 to 225 KPH) 2 – Normal: 15 to 140 MPH (24 to 225 KPH) 3 – Normal: 25 to 140 MPH (40 to 225 KPH) 4 – Normal: 50 to 140 MPH (80 to 225 KPH) 5 – Normal: 0 to 300 MPH (0 to 480 KPH) 6 – Normal: 5 to 300 MPH (8 to 480 KPH) 7 – Normal: 15 to 300 MPH (24 to 480 KPH) 8 – Normal: 25 to 300 MPH (40 to 480 KPH) 9 – Normal: 50 to 300 MPH (80 to 480 KPH) 10 – Baseball: 10 to 110 MPH (16 to 175 KPH) 11 – Baseball: 20 to 110 MPH (32 to 175 KPH) 12 – Baseball: 30 to 110 MPH (48 to 175 KPH) 13 – Baseball: 40 to 110 MPH (64 to 175 KPH) 14 – Baseball: 50 to 110 MPH (80 to 175 KPH) 15 – Tennis: 50 to 148 MPH (80 to 238 KPH) |
| Sensitivity | 8 levels of sensitivity can be selected: 1/2/3/4/5/6/7/8 |
| AUX Pin Configuration | The AUX output pin can be configured to be Disabled, or Speed Alarm |
| Alarm Speed Threshold | 1 – 300 MPH (1 to 480 KPH) |
| Peak Speed Reporting | Reporting of peak speed in addition to target speed can be Enabled or Disabled |
| Directionality | 10 levels of directionality can be selected (least restrictive to most restrictive): |
| Units | Speeds can be reported in one of the following units: MPH (miles per hour), KPH (kilometers per hour), knots, feet per second, and meters per second |
| Unit Resolution | Speeds may be reported in whole numbers (Units) or Tenths |
| Message Period | N=0 (send speed report on each 30ms measurement interval); N=1-9999 (send speed report on nearest 30 ms measurement interval following a delay of N milliseconds) |
| Serial Port Baud Rate | The serial port operates at 8 data bits, no parity and 1 stop bit (8N1) with the following selectable baud rates: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 |
| Serial Port Data Format | None – no data output ‘A’ – Strongest Target only (continuous) ‘AP’ – Peak Speed only (continuous) ‘B’ – all indicators output (continuous) ‘S’ – current and peak speed/direction and unit status (continuous) |
| Communications Protocol | RS-232 |
Operator Actions (defaults in bold)
| Transmit/Hold | Turns the microwave transmitter On or Off |
| Target Direction | Report only Away, Closing, or Both (away and closing) target speeds |
| Speed Lock | This command causes the target speed to be “locked” and reported as the locked speed in selected output formats (EF, B) |
| Test Mode | Initiates a speed sensor self-test followed by a 60 second tuning fork mode, during which time directionality screening is disabled and the speed sensor will respond to any target direction (away or closing) or to non-directional targets (like tuning forks) |
Sport Speed Sensor Downloads
User documentation:
(Left click to view / Right click to download.)
Sport Speed Sensor Operator Manual.