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Author Topic: req: looking for fm transmitter and reciever schematics radio controlled models  (Read 3830 times)
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sphinx
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« on: September 09, 2007, 12:05:03 12:05 »

hi guys/gals i am looking for fm transmitter and reciever schematics for radio controlled models, been looking for it all over the net with no luck maybe some here has any of that kind.

many thanx in advance
/sphinx
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twonuts
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« Reply #1 on: September 10, 2007, 05:37:39 17:37 »

Before you tyry to build your own, have a look at RF solutions web site.

www.rfsolutions.co.uk/

Their transmitter/receiver pairs are very inexpensive (cheap) to buy. Probably cost much less than building your own.
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sphinx
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« Reply #2 on: September 10, 2007, 05:49:12 17:49 »

thnx for info, but i got all the stuff thats needed to make those things i dont mind the price of making those things
i want to have the fun doing it, i have AM schematics but i and made 3 radios with it but i was looking for something more modern and that it would be less affected by interference.

thnx any way will have a look at website
/sphinx
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laws of physics are not laws at all, just assumptions and formulas that work as long as we don't figure something new that wrecks the calculations. the infinite onion try to peel that one
omsk
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« Reply #3 on: September 14, 2007, 09:08:40 21:08 »

thnx for info, but i got all the stuff thats needed to make those things i dont mind the price of making those things
i want to have the fun doing it, i have AM schematics but i and made 3 radios with it but i was looking for something more modern and that it would be less affected by interference.

thnx any way will have a look at website
/sphinx

http://www.cqham.ru/trx63_41.htm
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user112
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« Reply #4 on: September 15, 2007, 07:08:12 07:08 »

look here one schematic http://web.telia.com/~u85920178/use/rc-prop.htm
also sww this topics http://www.sonsivri.com/forum/index.php?board=19.0
http://www.sonsivri.com/forum/index.php?topic=2213.0
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strabush
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« Reply #5 on: September 16, 2007, 06:34:33 06:34 »

In this site you have many RF projects including remote control (RC) transmitter, receiver and decoder:
http://web.telia.com/~u85920178/
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sphinx
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« Reply #6 on: September 24, 2007, 05:21:02 17:21 »

thanks all for ur help but still cant find a fm transmitter with a crystal so i could change frequence if needed
will continue my quest for it

thanks again guys will search in forum to see if i cand find something.

 Smiley
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user112
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« Reply #7 on: September 24, 2007, 06:49:19 18:49 »

maybe this will help you http://www.eserviceinfo.com/downloadsm/5274/Cobra_148GTL.html
or this http://www.eserviceinfo.com/downloadsm/5274/Cobra_148GTL.html
http://www.free-electronic-circuits.com/circuits/radio-remote-control-using-dtmf.html
http://www.uoguelph.ca/~antoon/gadgets/gadgets.htm
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arash_tah
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« Reply #8 on: February 17, 2009, 07:39:46 07:39 »

Hi dear sphinx
U said "u have am receiver schematic"
I am looking for a 27mhz am supehet receiver with crystal based oscillator for R/C model
Do u have somethings for my application
best regard
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sphinx
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« Reply #9 on: February 17, 2009, 08:42:49 08:42 »

yes i found one schematic that i think might suit your needs

http://www.megaupload.com/?d=3LR9819T

regards
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arash_tah
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« Reply #10 on: February 20, 2009, 03:05:59 03:05 »

sphinx
That was good. I just have a question. where did u get it fram? was that  from a book? do u have the transmiter of it?
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sphinx
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« Reply #11 on: February 20, 2009, 05:41:50 17:41 »

hey

i found some files during my quest for FM r/c transmitters but i couldnt find it, i found lots of other stuff but not
what i was looking for some file on the net some on ftp's so to speak i found it here and there not from any books
i found some tx for you i hope it can be of interest.

regards

http://www.megaupload.com/?d=ZJLE7ZP9
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laws of physics are not laws at all, just assumptions and formulas that work as long as we don't figure something new that wrecks the calculations. the infinite onion try to peel that one
newboy
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« Reply #12 on: February 20, 2009, 06:53:52 18:53 »

Hope this can help you ..  Grin

If you success, hope you dont mind to share whole project over here ? I'm very interesting to do the same ...  Wink

http://www.webx.dk/rc/xtwin/xtwin.htm

http://members.shaw.ca/novotill/RcCarsSimple/index.htm

good luck
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