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Unread 01-03-2007, 00:01
eugenebrooks eugenebrooks is offline
Team Role: Engineer
AKA: Dr. Brooks
no team (WRRF)
 
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Re: Team Update 15 - Very important

Quote:
Originally Posted by Eldarion View Post
As an aside, I wonder why they used two different datapaths on different antennas? Did the old radios do that, or did the two datapaths use the same antenna?
Only the IFI engineers can say for sure, but if you have a transmitter
and a receiver close enough in frequency that the transmitter causes
the receiver interference problems, you can put them on different
antennas and position the antennas to minimize the coupling between
the transmitter and the receiver.

Given that there is an antenna out of sight in the radio modem case
it is very important that the modem be mounted well clear of any metal
structure on the robot. We mount our antenna on a piece of polycarbonate
a good distance away from metal structure on the robot and have not
had any problems with the radio, but we will be first in the line to upgrade
the radio firmware, and install V15 of the master code, at Portland.

Eugene
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