I'll have to check it tommorrow. But it reminds me of a phase noise
measurement. Maybe i'ts an AM noise on a spectrum analyzer?
On Thu, 15 Apr 2004 00:20:22 GMT, "Henry Kolesnik"
wrote:

could it be a typo?
maybe 10KHZ or 10MHz?
73
Hank WD5JFR
wrote in message
.. .
I need to measure the "equivalent noise voltage", in units of
nV/square root( hz) of a JFETs drain-source at a given Vds & Ids and
F=10 hz. How do I do that? What's throwing me is the F=10 Hz. What do
I do with that? I thought to take the measurement, I would bias the
FET to the required Vds and Ids and measure the voltage across the
drain - source with an RMS meter. Then divide that by the sqrt of the
bandwidth of the RMS meter. I've Googled, but didn't find anything to
straighten me out. Any help?