SKIPPER DL 1 DL 2 DL 21 DOPPLER SPEED LOG: The Skipper DL series Doppler Speed Log is a vital instrument for measuring a vessel’s speed over the ground or through water. It uses Doppler radar technology to send and receive signals to measure the speed, providing accurate and reliable data for maritime navigation. The device is essential for vessels to maintain safe speeds and efficient operations, particularly in harsh sea conditions. The system’s robustness and ease of use make it highly reliable in a variety of marine environments.