[Elecraft] HF NOISE GENERATOR BY AC7AC/N0SS

Manuel Wilches manuelwilches at arnet.com.ar
Tue Apr 4 21:27:14 EDT 2006


Thank you for the list Don!
Your comments are always full of wisdom and practical sense. They are indeed 
welcome.
Take care.
73
Manuel
LU5OM
CT4IK

----- Original Message ----- 
From: "Don Wilhelm" <w3fpr at earthlink.net>
To: "Manuel Wilches" <manuelwilches at arnet.com.ar>; 
<elecraft at mailman.qth.net>
Sent: Tuesday, April 04, 2006 9:26 PM
Subject: RE: [Elecraft] HF NOISE GENERATOR BY AC7AC/N0SS


> Proof that one does not have to have a sophisticated array of instruments 
> to
> build and peak up things, often easy to build designs will provide a great
> aid to your array of tools that are usable.
>
> My list of 'indespensible tools' for your workbench:
>
> 1. DMM
> 2. Good non-reactive Dummy Load
> 3. RF Probe (the parts for one is provided with every K2 kit)
> 4. Signal generator (may be just a crystal oscillator - see the K2 manual
> Troubleshooting section)
> 5. Broadband Noise generator (see the N0SS generator - www.n0ss.com)
> 6. PC with soundcard loaded with Spectrogram.
>
> With these inexpensive tools, one can do a lot of alignment and diagnostic
> troubleshooting.
>
> If you wish to get more sophisticated, you can add
> 100 MHz scope with 10x probes
> Frequency counter
> Signal Generator(s)
> More exotic stuff like Spectrum Analyzers (and Vector Analyzers) are also
> good if you do a lot of homebrewing and experimenting.
>
> What I am saying is that a good workbench may be equipped with simple,
> inexpensive tools - there are two important points that I would like to 
> add:
> 1. Know your tools and their limitations, and 2. Use your head along with
> knowledge of point 1 when doing analysis.  Trust no tool until you know 
> its
> capabilities and limitations.
>
> There is a lot of excellent information in the ARRL publication
> "Experimental Methods for RF Design" that can be put to use - the authors
> indicate how homebrew test equipment can be used to accomplish precision
> measurements.
>
> 73,
> Don W3FPR
>
>
>
>> -----Original Message-----
>>
>> Hello all:
>> I have built Ron's/Tom's HF Noise Generator inside a business
>> cards plastic
>> box (hi!)...it looks very uggly and works beautifully! For those
>> of you who,
>> like myself, have little or no instrumentation, do build the circuit and
>> align your receiver with it. Its a great solution.
>> Thank you Ron AC7AC and Tom N0SS
>> 73
>> Manuel
>> LU5OM
>> CT4IK
>> K2 # 5310
>>
>>
> 



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