From spcecdt Sat May 30 21:47:05 1992 From: spcecdt@deeptht.santa-cruz.ca.us (John DuBois) To: barryf@sco.com, belal@sco.com Subject: Re: 3com cards Cc: johnd@sco.com Date: Sat, 30 May 92 21:47:05 PDT We're working on a microwave system to link our house network to the network of another house 800 meters away. Each house currently has about a half dozen machines on its Ethernet, and each has one of what as far as I know are the two major public-access (no charge) UNIX systems in Santa Cruz, deeptht and gorn. A lot of traffic goes between gorn and deeptht each day (part of the News for one thing!), and in general it would just be fun to connect them (xtrek, etc :-) We got a 10.2 GHz audio link up the day we found line-of-sight between the houses, using a modified microwave people detector for the transmitter (about 15 mW output) and a modified radar detector as the receiver. For the actual link we're trying to get surplus 24 GHz transceivers. The Ethernet interfaces and 10 Mbps modems will be of our own design. We hope to operate under FCC regs part 15 which allows very low emissions without a license (so that computers and such don't have to be licensed). We will probably end up using 1 mW or so with 1-meter dishes at each end. Hopefully, once we have the hardware working, we'll be able to convince CATS and UCSC to let us put a transceiver on one of the buildings at UCSC and connect it to the campus net (the other house has line-of-sight to various buildings at UCSC). John