The power on rush of noise is almost earsplitting here in headset and external speakers, K3 serial 509. It lasts for about a quarter of a second. If I had the volume turned up it could cause damage to a speaker or my ears, it is that loud. For this reason alone it should be a high priority fix. Perhaps just blank the receiver in the turn on sequence for enough time to cover the transient.
It has existed over the last several firmware updates. I notice that it is worse when the bandwidth is set wider such as 2.7 KHz SSB mode. It does not matter if a signal is present or not. I have high background noise level here (S-7) so I expect that might be equivalent to having a signal present. When set for CW at 400 Hz the momentary noise is there but much-much subdued and not objectionable at all so CW operators may not notice the effect. The effect is there in SSB/Data/CW modes. I don't hear it in AM/13KHz. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
