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 | | Re: RF transmitters
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| (...) A simple way to get rid of the DC component is to run the data through a scrambler on the TX side, and descrambler on the RX side. This has been done successfully in 9600 baud amateur radio TNC's. 2 or 3 chips on each end of the link is all it (...) (27 years ago, 8-May-97, to lugnet.robotics.handyboard)
| | | | | RF transmitters
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| (...) We did use 900 Mhz Radio Shack RF headphones (cat # 33-1145), which gave us a reasonable analog transmission (the transmitter took L+R RCA audio in, and the we connected in place of the speaker on the receiver). We could get 9600 baud through (...) (27 years ago, 8-May-97, to lugnet.robotics.handyboard)
| | | | | RE: (no subject)
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| (...) If anyone can find Proxim RXA-1000 radios (900 Mhz, Direct Sequence Spread Spectrum), I wrote code for a Handyboard to program the synthesizer. You have to program two registers serially, and then must program one of those registers each time (...) (27 years ago, 8-May-97, to lugnet.robotics.handyboard)
| | | | | Spread Spectrum
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| <bold>Fred Cass,FCass@nextwavet...m,Internet writes: </bold><x-quoted>I would also be interested in hearing if there are any inexpensive (<<$500), easy to implement wireless comm solutions. Perhaps spreadspectrum 900mhz, or RF...</x-quoted> By (...) (27 years ago, 8-May-97, to lugnet.robotics.handyboard)
| | | | | Re: Polaroid Ultrasound
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| Polariod OEM Components Group (617) 386-3965 ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art (...) (27 years ago, 8-May-97, to lugnet.robotics.handyboard)
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