That falls more under the category of lore than science. By all accounts the K4 has a terrific receiver, but of the several possible reasons for what you experienced your receiver is at least a couple notches down the list.
73 Dave AB7E On 6/24/2023 6:28 PM, David Fifield wrote:
I’ve been using my K4 at 100W (per the FD rules) this afternoon on several bands. I am 1D OR. I can hear many many stations but hardly any of them can hear me. To me, this means that the K4 Rx is bomb-proof, sensitive, selective, and just, well, awesome. If the other stations had better receivers, they might be able to hear me calling them. They are obviously bogged down with on-site overload/spurii/phase noise etc. What a pity. I gave up replying hopelessly to CQFD’s from other 100W stations and went and did some woodworking instead. Much more satisfying. Oh well…. 73, Dave AD6A
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