transceiver

[wassup]

my professor in an basic antenna course plans to make us a project of a duplex communication system. di ko na maalala ang eksaktong tawag dun. grabe, nakakahiya, ang taas pa man din ng nakuha ko sa basic communication subject ko!:*) basta, it's the type where you either transmit or receive, one at a time. parang walkie-talkie. i want to do research online, kaso i don't know where to start. no books about antennas on goodwill and national bookstore. by december, the design should be done na. for the record, i'm not an ece student...

[dexterFrancis]

Originally posted by wassup
my professor in an basic antenna course plans to make us a project of a duplex communication system. di ko na maalala ang eksaktong tawag dun. grabe, nakakahiya, ang taas pa man din ng nakuha ko sa basic communication subject ko!:*) basta, it's the type where you either transmit or receive, one at a time. parang walkie-talkie. i want to do research online, kaso i don't know where to start. no books about antennas on goodwill and national bookstore. by december, the design should be done na. for the record, i'm not an ece student...

madali lang yan...

dalawa ang klase ng duplex....half duplex pati full duplex...

yung half duplex, pinakasimpleng method yon ng TDD or time-division duplexing...may interval yung send and receive...meron ka ding SYNC signal para i-synchronize yung send and receive sa clock...isang frequency lang ang ginagamit....

yung full duplex, ang ginagamit don ay FDD or frequency division duplexing...pwede kang magsend at receive ng data at the same time...magkaiba kasi yung frequency band ng send at receive.

pareho lang madali yon...

[kalimer]

1. you're not an ece student, but you have an antenna course?

2. do you just have to design antennas or do you also have to design transceivers?

3. if you only need to design antennas, you would have to consider the frequency of operation of your communications system first. once you have that, then it's all a matter of cutting elements to the proper lengths, and perhaps you'd also need to think a bit about your balun... but these are no brainers.

4. if you do need to design transceivers, however, then you've got a VERY BIG problem bro... well, you could always consult books on radio circuits and copy your design from them part by part... but that isn't really good practice. what i suggest is that you figure out how those circuits work then try to design your own.

5. your biggest problem would be in implementing the system. you need a lot of time, money, and test equipment. i can help you til number 4, but my hands are tied in implementation.

GOOD LUCK! :)

[wassup]

actually, ee ko. elective ko 'tong subject na to. mukha nga wrong move e. kasi masyado assume ng teacher na maganda ang background namin e, hindi naman talaga; hindi tuloy namin maintindihan minsan yung sinasabi niya. right now, tuloy, i'm trying to read a book about antenna just to cope up with him. hindi naman niya fault e, naging teacher ko rin yun sa industrial electronic subject ko, at magaling talaga siya magturo. ang hirap kasi, isa lang ang basic communication subject namin, when suppose to be 3 dapat. ang teacher ko pa sa basic comm, nagfocus sa concept rather than yung computations last semester. ano nga ba coverage nun...electromag radiation propagation, am, fm at reception ata, can't remember much.

anyway, ang sabi kasi ng teacher namin. maghanap na raw kami ng half-duplex (thanks dexterfrancis! :)) system na pwede naman implement this december. by january daw, simulan na namin i-build. tapos mga march, paglalaruan daw kung hanggang saan kaya ng system. mukhang buong transciever nga, kalimer. thanks guys, i really appreciate all the help i can get! :)

btw, anyone knows where i could avail electronic enthusiast magazine?