The 455 (50 MHz) or 465 (100Mhz) are great scopes if they are good
condition. They are often available for around $100 or so. If you have a
problem with the attenuator switches perhaps the fix that was recommended
earlier will work.
453 and 454 scopes are good as well. A bit older but good scopes.
73
Bill wa4lav
-----Original Message-----
From: "Gary Smith" <wa6fgi@sbcglobal.net>
To: <dezrat1242@ispwest.com>, <amps@contesting.com>
Date: Fri, 26 Nov 2004 11:31:45 -0800
Subject: Re: [Amps] Advice on instruments for ham use
My turn with a question.
What would be a good (cheap) analog (or digital ) scope to use for the sole
purpose of observing my transmitted signal?
And being I have zero experience with a scope, what would be the easiest method
of hooking it up? Just a simple loop over the coax or... ?
Something that would fit on (or near) the desk with out taking up the entire
desk.
Thanks to all,
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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