Welcome to the download area of the Knudsen Engineering website. This section will allow you to easily find the documents and software we currently have online. If you do not see what you are interested in, please email us at


Sounder Series:
Sounder Rack (1.4MB, Adobe PDF)
Sounder Portable (1.4MB, Adobe PDF)
Mini Sounder (1.4MB, Adobe PDF)
320Ms (3.1 MB, Adobe PDF)
Chirp Series:
Chirp Rack (1.4MB, Adobe PDF)
Chirp Portable (1.4MB, Adobe PDF)
320Mc (3.1 MB, Adobe PDF)
Chirp 3260 (1.4MB, Adobe PDF)
320N Navigation Echosounder (1.4MB, Adobe PDF)


EchoSim (1.3MB, Adobe PDF)
R100 - Hemisphere GPS (247KB, Adobe PDF)
DMS-H Heave Sensor - Teledyne TSS (208KB, Adobe PDF)
1086NT-Series 2000 - Thermal Printer (185KB, Adobe PDF)
SV Plus V2 SVP - Sound Velocity Profiler (174KB, Adobe PDF)
HYPACK® (3.3MB, Adobe PDF)

Product Catalogs

Knudsen Product CD (38MB, EXE File)

Echosounder Manuals

Pinger SBP Quick Start Guide (2.2 MB, PDF File)
SounderSuite-USB Software User Manual (6.6 MB, PDF File)
SounderSuite-SBP Software User Manual (5.6 MB, PDF File)
Mini Sounder User Manual (728KB, PDF File)
Chirp 3260 Installation Manual (430KB, PDF File)
320M Operator Control Manual (411KB, PDF File)
320M Series Troubleshooting & Maintenance Manual (400KB, PDF File)

Support Documentation

Serial Output Descriptor (16 KB, Adobe PDF)