I agree with Igor, since neither the K4 and K4D have roofing filters their performance probably won't equal that of a K3S with a narrow roofing filter in some contest environments. Therefore, I'm hoping to keep my K3S in operation long-term. I realize this is a long shot, but after Elecraft recovers from Covid and Forest Fires, I'd like to see them go back to manufacturing the K3S as the radio fills a need: outstanding for contesting and serious portable operation such as DXpeditions and Field. I for one don't need or want a Display built into my radio, if I want a Display I use a 24" monitor. I'm NOT saying the K4 won't fill a need, I'm saying the K3S meets a need, as does the K2, and I'd like to see the K3S continue to be manufactured. 73, Dick- K9OM In a message dated 6/1/2021 7:24:06 PM Central Standard Time,
[hidden email] writes:
Message: 12Date: Tue, 1 Jun 2021 19:32:59 +0500From: Igor Sokolov <
[hidden email]>To:
[hidden email]: [Elecraft] Rob Sherwood on K4Message-ID: <
[hidden email]>Content-Type: text/plain; charset=utf-8; format=flowed I see that Rob Sherwood put K4 figures into his table Receiver Test Data (sherweng.com) <
http://www.sherweng.com/table.html>. BDR figures probably preclude use of K4 in Multy cathegory contest environment and? we need K4HD for that purpose which would hopefully have 140-150 DB of BDR. Is their more detailed report available from Elecraft or from Sherwood? I am especially interested in such a TX parameters as wide band TX noise, but other things would also be useful to know. Until K4HD is available my old trusty K3 will still be used for contesting and my KX3 S.N. 051 - for SOTA and traveling. 73, Igor UA9CDC
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