To: | "[email protected]" <[email protected]> |
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Subject: | RE: LF: QRM on 472.5kHz |
From: | Rik Strobbe <[email protected]> |
Date: | Mon, 19 Aug 2013 10:19:04 +0000 |
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Thread-topic: | LF: QRM on 472.5kHz |
>And they all use true class D PAs. Somehow most of the active CW stations do >not have a "clean" >signal and those who have a clean signal are not QRV :-) Hello Stefan, with a class D PA key clicks are an issue when the drive signal is keyed. Soft-keying the PA itself will solve the problem. If you have to key the drive signal I have the inmpression that a current mode class D PA behaves a bit better in regard with key-clicks (compared to voltage mode). 73, Rik ON7YD - OR7T |
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