>> I tried this with a Maxim video amp, and my 10MHz noise floor went >> from -155dBc/Hz on the input to about 80-90dBc/Hz on the output >> of the amp. >> 80dBc is great for Video (generally arund 50dB SNR), but for timing >> it's a catastrophe...
> That's interesting. The MAX477 video amp that is used in the TADD-1 > (http://www.tapr.org/kits_tadd-1.html) does a lot better than that. > Here is a phase noise plot of the TADD-1 at 10MHz; it is better than > -105dBc at 1Hz and reaches a noise floor of -142dBc at less than > 100Hz. Where does that sort of noise come from? Power supply ripple? Ground loops? Other mechanisms? -- The suespammers.org mail server is located in California. So are all my other mailboxes. Please do not send unsolicited bulk e-mail or unsolicited commercial e-mail to my suespammers.org address or any of my other addresses. These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
