[time-nuts] HP 5065A and B, or Super, Phase Noise

[timeok at timeok.it]

   I have done some measurements about the Phase noise of a standard "A" and a 780nm Filter installed called "B" or super HP5065.
   As you can say B is lower as noise of 0dB at 1Hz, 5dB at 10Hz, 10dB at 100Hz and 5db at 1kHz.
   Setup is an HP3048A and Reference is a calibrated Wenzel 500 serie OCXO.
   Tests are done on two copuple of HP5065A, two original and two modified to B.
   Luciano
   www.timeok.it
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