Re: Open Source Signature Analyzer
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Paul, That is cool, Yes I am interested in updates. I recently purchased a Vector Labs Signature?analyser. I have not got around to testing it out.? But I?have a pile of HP iron that needs repairing. :-) It's a Pinball machine centric device but reasonably?priced and available. ? Dave VE7HR
On Fri, Jun 30, 2023 at 3:51?PM Paul Amaranth < paul@...> wrote: At odd moments over the last couple years I've been working on a cheap,
easy to build design for a signature analyzer to be more or less comparable
to the HP 5004a or Tek 308.? I plan on making the design freely available.
It annoys me to no end that these instruments have gotten as expensive as
they have and this is my response to it.
It follows the same general design as the Tek 308 with? some TTL logic to
implement the CRC register and a microprocessor for the UI.? In this case
I'm using an AT Mega 2560 Pro driving a 4x20 LCD display.? These are easily
available, cheap (tenish for the processor, sixish for the display) and
the tool chain is widely available and free.
That processor is actually a bit overkill, a nano has enough i/o but lacks
sufficent ram, so I'm stuck with that without going to a bare chip.
I finally got back to it the other week (in order to avoid doing other
work :-) and yesterday actually got it to produce it's first actual
signatures that match up with my HP5004a.
If you want to see a picture of the display, I posted it over in
the eevblog test equipment forum under the title "signature analyzer
project".
Anyone have any interest in updates??
--
Paul Amaranth, GCIH? ? ? ? ? ? ?| Manchester MI, USA? ? ? ? ? ? ?
Aurora Group of Michigan, LLC? ?|? ?Security, Systems & Software
paul@...? ? ? ? ? ? ? |? ?Unix/Linux - We don't do windows
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