ab2tc wrote: > > Hi, > > One thing is for sure: Once you have either one of these devices in front > of your K3 receiver, you can wave good-bye to the world class blocking and > IMD dynamic range of your receiver. I would consider this an absolute last > resort. I don't think I could put up with the necessary knob twiddling > required to locate the null, which will change each time you change > frequency. >
Believe me, if you have S9+20 interference without one of these devices, you put up with it. Yep, I've looked inside, build quality is terrible, SMD devices up on end and the rest of it. Signal path unnecessarily long pieces of hookup wire from the 259s to the PCB. It's hooked in via the KXV3 RX connectors so at least the TX signal doesn't go through it. But it works (and doesn't need much retuning as you change frequency.) 20m would be unusable without it, so the effect on blocking and IMD performance is unimportant, the alternative is QRT. Which would you choose? ----- Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://elecraft.365791.n2.nabble.com/Plasma-TV-Noise-any-ideas-on-how-to-filter-it-out-tp5775346p5778457.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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