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Palomar noise bridge
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March 31st 05, 01:28 PM
Jaggy Taggy
Posts: n/a
On 3/30/05 2:52 AM, in article
,
"Richard Clark" wrote:
You will need a stable source capable of 1 to 10mW power. You will
need a well shielded communications receiver to act as a detector.
You will also need a steady hand to balance the bridge (which may be
part of your problem with the noise bridge). Nulls are often more
than 100 dB deep. If you lack sufficient shielding for the detector,
this will degrade the nulls considerably. If you lack stability, you
will never find the null.
Richard, what do you mean by "If you lack sufficient shielding for the
detector, this will degrade the nulls considerably."
The source is the built in noise generator in the bridge. My detector is my
Icom communications receiver, connected via coax to the bridge.
What additional shielding would be needed??
UWE
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