The N-gen produces noise power that is approximately 35 dB greater than that
produced by a 50 ohm resistor. At room temperature a 50 ohm resistor
produces a noise power of -174dBm per Hertz of bandwidth. So in a typical
CW bandwidth of 500 Hz, the N-gen noise power output is
approximately -174+10log(500)+35= -112 dBm or 0.56 microvolt.
Bob, N6CM
----- Original Message -----
From: "kbgluxford" <[EMAIL PROTECTED]>
To: "Elecraft Reflector" <elecraft@mailman.qth.net>
Sent: Monday, July 17, 2006 3:28 AM
Subject: [Elecraft] N-Gen Output
Hi guys,
I have built the Elecraft Noise Generator. The specs say that the noise
output is 35 dB.
Am I correct in assuming that 0 dB corresponds to 1 microvolt, so that an
output of 35 dB corresponds roughly to 56 microvolts?
If this is so, it would explain why I can not see the output on my
oscilloscope.
Many thanks in advance, and 73
Kevin
VK3DAP / ZL2DAP
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
