The Bowie Card is a field device used for checking the UHF power emitted from the antennas. Use it before a race to be sure you have sufficient power to read all of the participants tags correctly.
- Hold the card with your thumb on the fingerprint icon in the corner of the card.
- Hold it a meter above the center of the antenna, parallel to the direction of the race.
- Start moving it towards the ground making sure it stays directly above the cable guide, take note of when the LED lights up.
- Repeat the process for all of the antennas on the timing point, the distance the LED lights up should be roughly the same for all of them.
💡The longer the cable that connects to the antenna, the greater the loss and the less the LED on the Bowie card will shine. For example, the first antenna of a control point which is connected to the shortest cable, emits twice as much power as the sixth antenna of the same timing point, connected with a much longer cable.