Hi All, I recently purchased a brand new K3 and after a factory tuneup, it is a very nice radio.
I discovered a situation using it that I would like to mitigate. When trying to work a station simplex in a pileup I experienced receiver blocking. While trying to listen to the DX station others were calling so I narrowed the passband down to 200hz. I was unable to copy the weaker station very well because the louder stations were retarding the AGC. This blocking is common to AF DSP radios like a IC746 but I would have not expected it to occur on the K3. I have owned a IC7800 for 5 years and even though the lab tests show it to be not as good as the K3 I have never experienced blocking inside of the selected passband like I have seen on my K3. I found if the DSP is set the same as the 400Hz crystal filter ,I have 8 pole, the blocking does not occur. But larger signals inside of the crystal filter BW makes copy hard. Is there a way to fix this? Perhaps a setup value change or something. I purchased this radio to take on DXpeditions. At this point I not sure if I could reduce the BW using the DSP inside of the 400Hz filter without problems. Thanks in advance, Dave Anderson, K4SV Tryon, NC 828 777-5088 www.K4SV.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
