Lowrance HDS-5 Gen2 HDS Gen2 2.5 software release addendum - EN - Page 13

HDS Gen2 RTM 2.5 software update The HDS RTM 2.5 software update enables support for the SonarHub sonar module, SpotlightScan sonar and Fusion-Link. SonarHub You can use the SonarHub to view data from CHIRP, broadband and StructureScan HD transducers. ¼¼ Note: When the SonarHub is in CHIRP mode, you cannot use StructureScan mode. CHIRP A CHIRP (Compressed High Intensity Radar Pulse) transducer sends out an elongated pulse that broadcasts all frequencies within the bandwidth of the selected transducer type (Low CHIRP, Medium CHIRP, High CHIRP). This results in better image quality, better target separation and greater depth penetration. CHIRP frequencies Low CHIRP Provides the best depth penetration with lower resolution images Medium CHIRP Better depth penetration than High CHIRP, but with minimal loss of target definition High CHIRP Offers high resolution images in shallow water Selecting a frequency You can view CHIRP or broadband sonar (50/83/200) by selecting the desired frequency from the sonar frequency menu. ¼¼ Note: Available frequencies are determined by the installed transducer and the selected transducer type. Viewing StructureScan You cannot view StructureScan data with a CHIRP frequency selected on the sonar frequency menu. 1. Select a broadband frequency (50/83/200) on the sonar frequency menu 2. Display the Structure page 3. Turn off Stop Sonar | 13