•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Job Board

About RF Cafe™


RF Cafe Advertiser - Colby Instruments

As with most venues provided to the public at no direct charge, RF Cafe relies on the generosity of independent advertisers to underwrite the production costs of the endeavor. It is with the greatest sincerity that I thank the companies who have chosen to support RF Cafe.

Of course, without visitors (you), both regularly returning and new arrivals, there would be no incentive for companies to spend their hard-earned money on advertising. My job is to see to it that advertisers and visitors always have a reason to maintain a presence on the website.

Here is a complete list of RF Cafe advertisers.

Here is the RF Cafe advertising information page.


Colby Instruments, Inc.
1715 114th Avenue SE
Woodridge Building - Suite 112
Bellevue, WA  98004   


Ad Page Placements

Engineering Crossword Puzzle Appearances

Highlighted Ad

Please click here to visit the Colby Instruments website.Colby Instruments
Bellevue, WA
Tel:  425-452-8889
Fax:  425-452-8802
Colby Instruments designs and manufactures the world’s finest high-precision Programmable Delay Line (PDL) instruments and modules.
All instruments are fully programmable via GPIB interface, and are suitable for use in high frequency RF signal applications as phase shifters or where an extremely high precision and accurate amount of delay is required.
125 Femtosecond Steps Have Been
Achieved in Some Products!
 ¤ Choose from 4 off-the-shelf models
  ¤ Custom delay line solutions (CPDL) for
       unique applications also available.
Typical Features:
    • 0.50 Picosecond Resolution
    • DC to 18 GHz Bandwidth
    • Total Delay Up to 100 Nanoseconds
    • Data Rate DC to 40 GB/s
    • Settling Time 0.25 to 1 sec
    • Power Handling up to 10 W(cw) / 50 W(pk)
Application Notes & User Manuals

Colby Instruments Colby
High-precision programmable delay line (PDL) instruments and modules w/GPIB interface for RF signal applications as phase shifters where extremely high precision accurate delay is required.
Custom Search
More than 10,000 searchable pages indexed.

Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem!
(Seize the Day!)

5th MOB: My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website