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Amp builders SHOULD all be incorporating low pass filters into their designs. It's cheap and irresponsible not to. RF amps for every other service, whether it's ham radio, broadcast radio, business band, or whatever, ALL have a low pass filter. It's considered a normal part of amp construction for everybody but builders of CB amps. And just because nobody else puts one in doesn't make it OK to not have one !

Fortunately they are cheap and available as an after market add on that goes between the amp output and the antenna. I know 429 had one short out (these things happen) but thousands of them are in daily use around the world without problems. I've used them for over 40 years without any problem ! They prevent interference to other radio users and services, which should be a huge plus as interference can lead to complaints which can lead to an FCC visit.

I'll also add that used ham gear is often cheaper than used CB stuff, can usually be modified for 11 meters, and ALWAYS includes a low pass filter.

<blockquote data-quote="BC Coyote" data-source="post: 827348" data-attributes="member: 66242">Amp builders SHOULD all be incorporating low pass filters into their designs.&nbsp; It&#039;s cheap and irresponsible not to.&nbsp; RF amps for every other service, whether it&#039;s ham radio, broadcast radio, business band, or whatever, ALL have a low pass filter.&nbsp; It&#039;s considered a normal part of amp construction for everybody but builders of CB amps.&nbsp; And just because nobody else puts one in doesn&#039;t make it OK to not have one ! &nbsp;Fortunately they are cheap and available as an after market add on that goes between the amp output and the antenna.&nbsp; I know 429 had one short out (these things happen) but thousands of them are in daily use around the world without problems. I&#039;ve used them for over 40 years without any problem ! They prevent interference to other radio users and services, which should be a huge plus as interference can lead to complaints which can lead to an FCC visit.I&#039;ll also add that used ham gear is often cheaper than used CB stuff, can usually be modified for 11 meters, and ALWAYS includes a low pass filter.</blockquote>

[QUOTE="BC Coyote, post: 827348, member: 66242"] Amp builders SHOULD all be incorporating low pass filters into their designs. It's cheap and irresponsible not to. RF amps for every other service, whether it's ham radio, broadcast radio, business band, or whatever, ALL have a low pass filter. It's considered a normal part of amp construction for everybody but builders of CB amps. And just because nobody else puts one in doesn't make it OK to not have one ! Fortunately they are cheap and available as an after market add on that goes between the amp output and the antenna. I know 429 had one short out (these things happen) but thousands of them are in daily use around the world without problems. I've used them for over 40 years without any problem ! They prevent interference to other radio users and services, which should be a huge plus as interference can lead to complaints which can lead to an FCC visit. I'll also add that used ham gear is often cheaper than used CB stuff, can usually be modified for 11 meters, and ALWAYS includes a low pass filter. [/QUOTE]

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