On Wed, Dec 3, 2008 at 6:22 AM, Philip Covington <[EMAIL PROTECTED]> wrote: > On Wed, Dec 3, 2008 at 12:55 AM, Joe Subich, W4TV
>> I do not believe that any wideband SDR can cope with the >> instantaneous peaks greater than the ADC rail in the >> limiting condition (a large number of extremely strong, >> say greater than -10 dBm, within the bandpass filter >> "window."). While the chance of the instantaneous maximum >> decreases as the number of signals increases, the average >> signal level continues to increase at an exponential rate. >> >> 73, >> >> ... Joe, W4TV > > I can tell you that QS1R can handle multiple 0 dBm signals in or > outside of the bandpass filter "window", whether you believe it or not > is up to you. If you exceed the clipping limit ( +9 dBm with no > attenuation in QS1R) then that's it - but that is true for the K3's > ADC also. > > -- > Phil Covington > Software Radio Laboratory LLC > Columbus, Ohio > http://www.srl-llc.com > A picture is worth a thousand emails, so: <http://www.srl-llc.com/files/capture12032008_3.png> multiple sources at ~0 dBm... one source at ~-117dBm... -- Phil Covington Software Radio Laboratory LLC Columbus, Ohio http://www.srl-llc.com _______________________________________________ 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
