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From : Anatoly Mashanov 2:5070/10 Вск 08 Дек 96 19:45
To : All Птн 13 Дек 96 07:06
Subj : RadioModem
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Shalom All!
Позвольте Вас познакомить с тем, что пpоисходит в области pадиомодемов и
подобных дивайсов в Штатах (http://www.l0pht.com). Текст был сильно поpезан для
удаления HTML последовательностей и оффтопиков.
L0pht Heavy Industries Laboratories
The main focus of the hardware group is to devise a portable NOC, for the quick
deployment on elevated terrain with an option for Hi-speed 10MBit/sec microwave
link to other portable NOC's or repeaters. A low-speed 9600K HT to other
portable NOC's or repeaters in the field shall be on standby, or used when a
10MBit/s link cannot be established. The unit will be able to route to a local
Ethernet LAN and route between a fleet of roaming 10 Meter rigs employing DSSS
(Direct Sequence Spread Spectrum), 220MHz, and 440MHz rigs using standard AM
transmission of TCP/IP back to the NOC.
In order to acheive these goals, some work is in progress in the following
areas:
10GHz 10Mbit/s Data link
This will include a procedure to quickly align the link and establish
communications between remote nodes. Currently, we are in the prototyping
stage. Based on a circuit originally designed by Ben Elmore (N6GN), functional
improvements have been made with updated components and combined with slight
modifications to the original layout. Antenna design is completly original, as
well as the a new ethernet interface.
10 Meter Direct Sequence Spread Spectrum communications systems
This research is still in the conceptual stage but is progressing along slowly.
Reason being, all of our current resources are being focused on the Microwave
aspect of the system, mainly because we are trying to use that technology to be
our primary link to the commercial Internet.
These units will be the field units to allow mobility, yet keep connect to the
data stream and intelligence materials associated with it. This intelligence
may include text graphic files, email, or two way communications.
Halom Meushar (Счастливых Снов)!
Anatoly
* Origin: BRAIN FAULT - CORTEX DUMPED (2:5070/10)
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