Hi Matt, The 35dB excess noise is in reference to a 50 ohm resistor at room temperature. The power is a function of bandwidth. If the bandwidth is 500 Hz, that is -174dBm.
Here is the MAR1 data sheet http://www.minicircuits.com/pdfs/MAR-1+.pdf 73 and Happy New Year, Bob, N6CM On Mon, Dec 31, 2012 at 2:33 PM, Matt Zilmer <mzil...@verizon.net> wrote: > Couple of questions on the N-gen: > > 1. The instruction sheet gives "35 dB" of Excess Noise Output. Is > this referenced to -174 dBm or some other? > > I'm seeing S0 on a KX3 with the switch OFF, and S5-6 with the switch > on. Seems usable. I have S5 at -97 dBm, S6 at -91 dBm. So the > reference level is around -132 to -126 dBm, if I read this spec > correctly. > > 2. Can someone reference a data sheet for the MAR-1 MMIC? I'm going > to search for it, but thought someone might have it around. > > The N-gen makes a nice 30 minute build, and is fun. Parents are still > giving me kits even though I'm 55 y/o - because they want to watch me > build them - yes, right on the spot in their living room in Tucson. > > I restrained meself until we got back to SoCal and I had my wrist > strap on. > > Happy New Year to All. > > 73, > matt W6NIA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
