This project sounds very interesting and I would dive in if I werent
covered up right now with other projects. I know this is way off topic,
so maybe martin or someone could respond to my question by email. Is
this typical of the circuit cellar magazine? I'm not familiar with it,
but maybe I should subscribe if it has this caliber of articles. What is
the scope of the publication (digital, analog, rf, general)? I saw a
reference to it somewhere before, but I assumed it was like popular
electronics or some such. If it doesnt have 25% fluff and 70% adds, and
doesnt cost an arm and a leg, maybe its for me.

Thanks
Don
email...  bjmcpher@usit.net



Martin Green wrote:
>
>      Yesterday I got my August 1998 issue of Circuit Cellar INK in the
>      mail, and it has an article and construction project that fits right
>      in with the recent discussions here about a PIC based DSO project.
>
>      This project is an entry into the Circuit Cellar/Microchip Design 98
>      contest, and is interesting in that it is a mixed signal analyser, not
>      just a DSO. It combines a 50MS/s logic analyzer, and 50MS/s DSO with
>      100 MHz vertical amplifiers (allows subsampling 100MHz signals at
>      50MS/s), with a common trigger, allowing a digital pattern match to
>      trigger an analog trace, and vice-versa. Communication with the host
>      is via RS-232, and the host can be any of a number of platforms. The
>      control software is generic and can be ported to almost any OS and
>      hardware and the hardware is designed to allow 3rd party expansion.
>
>      All schematics are provided, and no esoteric devices are used. Even
>      the PIC is just a lowly 16F84.
>
>      If nothing else, this project could provide the design for stable
>      100MHz input amplifiers.
>
>      CIAO - Martin.