[Discuss-gnuradio] Evento cancelado: PSD in dBm/Hz jue 10 de Sept de 2015 11:00 - 12:00 (address@hidden)

[jhaguilar]

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DTSTART:20150910T160000Z
DTEND:20150910T170000Z
DTSTAMP:20150910T122811Z
ORGANIZER;CN=Julio Hector Aguilar Renteria:mailto:address@hidden
UID:address@hidden
ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=di
 address@hidden;X-NUM-GUESTS=0:mailto:address@hidden
ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=Ma
 rtin Braun;X-NUM-GUESTS=0:mailto:address@hidden
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 address@hidden;X-NUM-GUESTS=0:mailto:address@hidden
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 Hector Aguilar Renteria;X-NUM-GUESTS=0:mailto:address@hidden
ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=ml
 address@hidden;X-NUM-GUESTS=0:mailto:address@hidden
ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=ma
 address@hidden;X-NUM-GUESTS=0:mailto:address@hidden
ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=Ac
 tivecat Ku;X-NUM-GUESTS=0:mailto:address@hidden
CREATED:20150910T035324Z
DESCRIPTION:Do you mean adding a text label on the vertical axis\, or scali
 ng the\nspectrum?  For the latter\, you would have to feed the USRP a known
 \n(calibrated) noise source that is well above the USRP noise floor such as
  an\nHP 346 noise source.  Then read the value from the spectrum and just\n
 re-scale the samples to your known PSD.  If you change the FFT bin size\,\n
 decimation\, tuning\, etc\, you may need to re-scale.\n\nI suppose you coul
 d also feed the USRP with a CW tone of known power to\nfigure out it's gain
 \, then terminate the input with 50 ohms (i.e. -174\ndBm/Hz) and measure th
 e power (which would be -174 dB/Hz + NF + gain).\n\nIn either case\, you ne
 ed a known power source to convert the dB to dBm\, and\nnoise to fill your 
 bandwidth to get the 1/Hz.\n\nLou\nKD4HSO\n\n\nact...
LAST-MODIFIED:20150910T122810Z
LOCATION:REVISAR
SEQUENCE:1
STATUS:CANCELLED
SUMMARY:[Discuss-gnuradio] PSD in dBm/Hz
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