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Apr 27, 2005, 01:07 PM
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Joined Jan 2004
25 Posts
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DIY 900 Mhz tx/rx?
Plantraco have got the indoor flyers in a feeding frenzy with their ultra light high frequency RX. Whilst they are are satisfying the pre-built demand it looks like good alternative to the DIY FM systems that have problems with obtaining filters and the rx chips. Is there any info on the various silicon employed in the Plantraco rx? In their blurb they advertise no crystals, probably don't have the filter and discrimantor problems either.
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Apr 27, 2005, 06:23 PM
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Melbourne City Hlpt, Australia
Joined Jun 2004
758 Posts
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Hi excaliber,
We started something here http://www.rcgroups.com/forums/showthread.php?t=335254 a while back. It does look interesting  .You do need a crystal ( 10MHz ) for the RX/TX but it doesn't change with frequencies. Cheers Zlatko |
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Apr 27, 2005, 06:54 PM
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Canada, NB, Fredericton
Joined May 2002
890 Posts
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Hrm. Looks *very* similar to the Plantraco RX, which also has a 16 pin receiver chip & 10Mhz oscillator. Also has the same frequency hopping capability that they're promising in future revisions...
Doesn't seem like many places stock em tho... D. |
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Apr 29, 2005, 07:31 AM
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UK
Joined Jan 2004
324 Posts
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What are the other components on the Plantraco board? one is probably a PIC with the ID removed there are two apperently identical metal cans, which look like old fashioned transistors, (but I guess aren't)
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May 29, 2005, 02:00 PM
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Canada, NB, Fredericton
Joined May 2002
890 Posts
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Parts as far as I can see on the .9g:
PIC 16F676 two magnets (that's probably what you're thinking of four dual fets, two hidden under sockets (NDC7001s or similar I'll bet) motor fet 10 Mhz crystal large cap (10uF?) SMT LED assortment of SMT caps and resistors, and maybe inductors and of course the 16 pin radio chip, which I can't clearly make out the designation D. |
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