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Re: [Amps] Advice on instruments for ham use

To: <dezrat1242@ispwest.com>, <amps@contesting.com>
Subject: Re: [Amps] Advice on instruments for ham use
From: "Gary Smith" <wa6fgi@sbcglobal.net>
Reply-to: Gary Smith <wa6fgi@sbcglobal.net>
Date: Fri, 26 Nov 2004 16:41:39 -0800
List-post: <mailto:amps@contesting.com>
My first reason for wanting a scope is to see my output signal.  And, as Colin, 
 K7FM has noted ( i think this is a very good idea) I will be able to look at 
the xcvr output vs. what's coming out of the amp.

Now I'm on the hunt for a good working`scope, I am.

Again my thanks to the never ending wellspring of knowledge to all of the 
members this list.

Gary
WA6FGI

snip
  ----- Original Message ----- 
  From: Bill Turner 
  To: amps@contesting.com 
  Sent: Friday, November 26, 2004 11:06 AM
  Subject: Re: [Amps] Advice on instruments for ham use


  On Wed, 24 Nov 2004 12:41:01 -0500, bill weinel wrote:

  >As others have stated, I would go for a good quality analog scope over a 
  >  digital scope. Digital scopess tend to be harder to fix. Also I don't 
  >think digital scopes provide as good a picture of whats happening in an 
  >analog signal as an analog scope does. This is due to the 
  >sampling/averaging nature of the digital scope. So unless you can afford 
  >to purchase one with a very high sampling rate, I would go for a good 
  >quality analog scope.

  _________________________________________________________

  To expound a little further on analog vs digital:

  Analog scopes are fine for a repeating waveform such as RF, or one
  which changes relatively slowly such as an audio frequency voice
  trace.

  Digital scopes are best for a one-time event which is either too fast
  or too slow for the human eye to capture well.  One example would be
  capturing a relay or switch contact bounce.  They also (usually) have
  the ability to store and print out individual traces.

  Each has their place, but for amateur radio purposes, an analog type
  is probably adequate, as well as easier to fix and cheaper to buy.

  --
  Bill W6WRT



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