HEATKEYS

PIPESIZE is an Excel spreadsheet template that computes pressure drop, velocity, and heat loss in pipes with liquid or gas fluid flow. It incorporates extensible databases with fluid properties.

Provides bandpass, sealed and vented subwoofer box design software and science, math and engineering programs and freeware

Marki Microwave is a leading manufacturer of high performance, broadband RF and microwave components including mixers, amplifiers, multipliers, power dividers, couplers, filters, bias tees and dc blocks.

Microwaves101.com - A practical resource covering all the fundamental principles of microwave design

Microwave Journal

Resources for Radio, Radar, RF, Microwave, & Wireless Engineering

Radio Frequency Engineering tools and extras.

International Electronic Discussion Forum: EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals

Online PDH Courses - CED Engineering offers Engineering Classes and Continuing Education Courses Online.

Westfall specializes in custom-engineering components used in pipeline systems for water treatment, wastewater treatment, petrochemical, pharmaceutical, chemical, food and beverage industries.

EAW is the worldwide technological and market leader in the design and manufacture of high-performance, professional loudspeaker systems.