[Test-Equipment] LF Ailtech 7514 and noise sorce

[Brooke Clarke]

Hi Chris:

The 5722 tube was designed to generate noise from DC through 500 Mhz, see:
http://www.prc68.com/I/NSLB.shtml

The other way is to use a zener or better a noise diode.

The advantage of the 5722 is the noise is a function of the plate current.

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.precisionclock.com
http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Cam


Chris Trask wrote:
> Ed,
>     What frequency range?  For HF I use a General Radio 1383 noise
> generator, an HP-141T spectrum analyzer, a homebrew 30dB amplifier, and a
> 3dB pad.  Works well as long as you're measuring a NF of 3dB or higher.
> 
>   I have an Ailtech 75 PANFI and an Ailtech 136 precision receiver, but no
> low frequency noise source to go with them.
> 
> Chris
> 
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> 
> ----- Original Message -----
> From: "Edward J White" <wa3bzt at verizon.net>
> To: "Test Equipment" <Test-Equipment at mailman.qth.net>
> Sent: Sunday, December 23, 2007 1:51 PM
> Subject: [Test-Equipment] LF Ailtech 7514 and noise sorce
> 
> 
> 
>>Hi Gang: Anybody have a Noise system that works for sale Not looking for
>>something to expensive.
>>Ed
>>WA3BZY
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> 
> 2:02 PM
> 
>>
> 
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