Hi Moshe, In addition to my previous scanner specification data, I like to add: You find scanners of all kind of sizes from handheld to topdesc models. ALL scanners do not have the same features, of course, but most do have following: The electronic SMD is smal and low power due to the actual technologie. Its able to run on internal batteries, from a external 12VDC or from AC mostly with a simple AC/DC cord adapter. Typical power consumption in normal opperation is 160mA, 110mA in standby and 20Ma in power saving mode (9 till 16 V DC External or 4.8 internal).
I mentioned in my previous mail usenet and mail lists. You will find several vendors on the www, search on yahoo http://www.yahoo.com/Business_and_Economy/Marketing/ (or any other web search server) with the keyword scanners in order to find them. A block diagram is rather difficult to draw, hope my previous mail and data specification helps. Drawings and allignment documentation can also be purshased at a very reasonable price from vendor. In this documentaion you can also find the spurious freq. spots, bandwith spec., sensivity , .. They have a good sensitivity around the 1 uV (180 kHz bandwith). Hope this helps you Moshe. [email protected] wrote: > 1. How these scanners are built, any info like block diagrams > preferably on the net. How big are they? Do they run on batteries? > 2. Where I can buy the ones you recommend. Do the vendors have an > internet page? Or at least an address or some way to make contact with > them.-- Paul Rampelbergh Wezembeek-Oppem (Belgium) -------------------------
