Hi Don, Quote The two diodes limit the signal to 1.4 V peak-to-peak. Even when the diodes are conducting, i.e. when the signal
is so strong that it looks like a square wave at pin 4, there is no audible signal distortion. This is because the MC1350 is followed by a second crystal filter which removes any harmonic distortion products (i.e. multiples of 4.915 MHz). The diodes appear to have no other side-effects. Unquote. Indeed, no distortion noted CW or SSB. Regards, Mike VP8NO ----- Original Message ----- From: "Don Wilhelm" <w3...@embarqmail.com> To: "Mike Harris" <mike.har...@horizon.co.fk> Cc: "Reflector Elecraft" <Elecraft@mailman.qth.net> Sent: Monday, May 04, 2009 2:47 PM Subject: Re: [Elecraft] K3 on-channel strong signal overload? | Mike, | | That mod to the K2 (which has been incorporated into the new K2s) is | simply a limiter. | If the signal level at the input to the IF amplifier ever increases to | the point where the diodes clip the signal, then distortion will occur. | The clippping distortion may not be noticed on CW, but it certainly will | distort SSB and data signals. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
