a division of Milestone Technologies, Inc.
"Everything for the Morse    Enthusiast!"

Home Page What's New Search Contact Us Order Info

Audio Filter Kit

As of 07/15/09 Vectronics division of MFJ is experiencing production problems and the CW filter kits will not be available until further notice.  We regret any inconvenience.


Super CW Filter Kit with 1W Audio Amp


The Vectronics Super CW Filter kit is an inexpensive way to add sharp, narrow filtering to any transceiver or receiver.  It works on the audio output from the receiver-- just connect it to the headphone or speaker jack.  Connect your headphones or a speaker on the output of the filter and enjoy QRM free code.

The rotary switch provides for four filter settings-- bypass, 180Hz, 110Hz, and an almost unbelievable 80Hz.  On the 80Hz setting, the sharp skirts provide for 50dB suppression a mere octave away from the 750Hz center frequency.  

A built-in 1W audio amplifier provides plenty of power to overcome any losses in the filter, and drive headphones or a small speakerfilter.  The amplification also allows you to reduce the input level, preventing distortion.

Eight poles of active filtering provide for a 15dB improvement in signal to noise ratio.  There is very little ringing, no impedance matching is required, and there is no insertion loss.  The filter runs on 9VDC (battery clip is included).  The kit includes everything you need except input and output jacks.  It's small enough to build into many radios, or build it into any convenient project box. At $29.95 the performance of the Super CW Filter rivals that of units that cost much, much more.

Order on-line, or call 800-238-8205 for credit card orders
or call 303-752-3382 for more information

What Others are Saying...

If you are a user of the Vectronics CW Filter, your comments could be here!  Write to us via the link below, and please be sure to say specifically that we can use your comments on the web page.


 HomeBack to Home Page    
 Questions or Comments? Write to us!  e-mail    Privacy Policy  FAQ
All text and images in this web site (comprising the registered domains,, and  are the intellectual property of Milestone Technologies or are used with permission of the copyright holder. Please ask for permission before "borrowing" or otherwise using any images or contents from this web site.
Copyright 1996-2019, Milestone Technologies, Inc. All Rights Reserved