How about just using a good mic that is dead to its back and thus leaves out virtually all fan noise?
Charles Harpole [EMAIL PROTECTED] > Date: Thu, 29 May 2008 08:10:32 +0100 > To: elecraft@mailman.qth.net > From: [EMAIL PROTECTED] > Subject: Re: [Elecraft] K3 Need for compressor > > n4lq wrote: >>It seems that without the compressor it is difficult to obtain full SSB >>output. I'm listening to a guy right now on 160m in QSO. He had is >>compression on and as can be expected, was picking up plenty of fan >>noise from his amplifier. He was advised to "turn off the >>compression". This he did and the fan noise went away but he complained >>about insufficient drive to his amp and his K3 was only putting out 38 >>watts now. >>I don't have a decent peak reading wattmeter >>but I think weak RF output is a common complaint. > > It's rather surprising that the K3 doesn't have the option of a > peak-holding RF output display, like the S-meter has. > >>I just wonder if Elecraft expects everyone to run some degree of >>compression? Or are we interpreting the PWR meter on the K3 incorrectly? > > Mainly the latter. > > When the K3 says "no compression", it's telling the truth. In contrast, > most other rigs are using compression all the time - even when the > speech processor is turned off - because there is peak limiting due to > heavy ALC. > > The K3 is one of the few rigs that does it right... and because no good > deed goes unpunished, it then suffers complaints of "weak audio"! To > equal the compression that's always taking place in most other rigs, you > probably *do* need to turn the K3's compression up a little. No harm in > that - unlike most other rigs, a moderate amount of compression will > simply make you sound louder. > > However, the complaint about fan noise is a valid one. As the > compression is increased, the peak audio stays the same but the > background noise comes up. Any transmitter with effective compression > will also benefit from a "noise gate" or some other kind of nonlinear > threshold, to reduce the noise background when there's no actual speech. > This would be something like VOX, but with a different configurable > threshold and hold/release dynamics. > > To obtain full value from the K3's highly effective compressor, could a > noise gate be added to 'Lyle's List', please? > > > -- > > 73 from Ian GM3SEK > http://www.ifwtech.co.uk/g3sek > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > 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 _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
