techhead wrote: >The gel is a very sophisticated > formula and made explicitly for imaging taking into account the > impedance of human flesh, transducer freqs, etc. You sure? Last I checked, they just use KY Jelly, which is a carboxymethylcellulose gel, and not very sophisticated. -- Mike Poulton mpoulton@mtptech.com MTP Technologies KC0LLX -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics