”SysCalc6 is a powerful engineering software for RF and microwave design engineers in the commercial and defense industries. Download a trial today.

Networks International Corporation (NIC) offers RF filter, IF filter, Microwave filter, Roofing filter, Front-end filter, Side-band filter, Linear phase filter, Bandpass filter, Lowpass filter, Highpass filter, Notch filter, Band-reject filter, High power filter, Lumped element filter, Lumped component filter, LC filter, Crystal filter, Crystal oscillator, Monolithic filter, VCTCXO’s, TCXO’s, Cera

Spectrum Control, Inc. is a leader in the design, development, and manufacture of high performance custom solutions for the defense, aerospace, communications, and medical industries worldwide.

RFMW services customers with products from specialized RF and MW component manufacturers who have a need to utilize a technical sales and marketing approach combined with premier customer service in the form of a time and place utility

Semrock sets the standard for optical filters for life sciences, lasers and optical systems.

Integrated Microwave Low Cost, Custom Ceramic Filters, Diplexers and Resonators for Wireless Applications IF/RF/Microwave Filters For Commercial and Military Applications Home Page

RF Parts Company Catalog. Large inventory of hard-to-find products for the repair and manufacture of Amateur, Commercial & Broadcast radio equipment.

Spectrum Microwave, Inc. offering RF and Microwave filters, frequency components, integrated RF Solutions, and services

, World leaders in the design and manufacture of emi-shielded windows, optical laminating, display filters, touch screens, privacy, anti-glare and heated screens, ITO coatings and other specialist glass and polycarbonate screens.