The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Ian P. Dawson:
Reactel, Incorporated Reactel RFQ Filter Quotation Tool Getting a quote for an RF & Microwave Filter, Multiplexer or Multifunction Assembly has never been easier. Our Reactel RFQ app will allow instant communication with our team of engineers for your filter needs. You can specify: - Filters of any type - Multiplexers - Multifunction Assemblies Reactel RFQ will then send a message instantly to our Engineers who will reply with a full spec, simulated plot and pricing rapidly. This application also contains Data Sheets for a variety of existing designs, and our most current full line catalog. Even if you are in an area where you do not have an Internet connection, our application will allow the full use of our catalog and data sheets offline. You can even enter your filter specifications and once a connection is reestablished, it will be sent to our Engineers for immediate attention. Visit our Website at http://www.reactel.com