PROTEKTOR, Filter By-Pass Accessory is the newest and only product currently on the market that allows a filter to be by-passed.  


Band pass filters are a common, and popular accessory used by hams. Some hams have multiple filters which they swap out, depending on the band they want to operate on?

Multiple band-pass filter arrangements are offered from a few manufactures, but can be expensive, to the point of pricing the mono-band filter user out of the market.


There are a couple of frustrating problems with mono-band filters:

  • The principal one, is the requirement to take it out of line, if a different band/frequency is to be used.

  • The second, and maybe the most significant, is changing bands, and forgetting that the filter is still in line. Depending on the radio, this situation has the potential to cause se