this happened to anyone else?

This topic has 9 replies, 6 voices, and was last updated 21 years ago by ph2t.

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- April 28, 2003 at 4:46 pm #10360
  dgs73
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  Posts: 2179
  Got a new couple of Bits in the last couple weeks, long story short, my old 27MHz Compact and new 57MHz Bit interfere with each other, ie. both of them can not be run together… any tech-heads out there wanna shed some light on this for me?? Im at a loss…:smiley2:
- April 28, 2003 at 5:18 pm #32673
  ph2t
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  Posts: 2088
  Strange, this has happened to me with two clones. A 27Mhz and a 49Mhz wouldn’t work together. The 49 killed the 27 everytime it sent a signal. I put it down to crap manufacture (or maybe the stickers on the car/controller were wrong, yet to open and check crystal value). Any ideas micro? Perhaps you can re-tune the 27Mhz car to it’s controller and also re-tune the 57Mhz car to it’s controller. This would help in the lest for range but would also help in making sure your car is tuned as best as it can be to the trasnmitter.
  
  Just to confirm that both cars ar TOMYS? Sorry but it’s always good to ask.
  
  ph2t.
- April 28, 2003 at 7:53 pm #32639
  dgs73
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  Posts: 2179
  Neither of the cars are clones, the Compact Char-G is 5-6 months old, and the Bit Char-G is less than 2 weeks old… yes both are Tomy. Funny thing is all other cars work well together, even the 35/40/45MHz mix!!
- April 28, 2003 at 11:11 pm #32631
  PandaBear
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  Posts: 1866
  That is WIERD!! Have a close look at the xtal in the TX, make sure its really the freq you’re expecting…
- April 28, 2003 at 11:32 pm #39653
  ph2t
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  Posts: 2088
  That’s what I reakon……….
- April 29, 2003 at 12:21 am #39267
  micro_Amps
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  Posts: 1290
  Quote:
  
  Perhaps you can re-tune the 27Mhz car to it’s controller and also re-tune the 57Mhz car to it’s controller.
  
  That would be where I start. Try extending the aerials and retuning the Rx vari-inductor. Hopefully that will make the cars a little more selective in which signal they respond too.
  :)uA
- April 30, 2003 at 2:53 pm #39639
  z-beam
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  Posts: 2265
  what about about batteries? i know an old set vs. a newer batch can invite rf gremlins.
  
  maybe the 57mhz bits are actually a variant of 27mhz:question:
  
  the new chassis have three chanels on 27mhz and they will race together so it’s possable.
  
  is it the fairlady booster? you might have got a mis made curcuit that is marked 57 but is actually 27, have you got a booster controller?
  check if the controller works on the a,b,and c channels of 27mhz.
- April 30, 2003 at 4:10 pm #32370
  dgs73
  Participant
  Posts: 2179
  i have a Fairlady booster, and that goes well with the 27s, its the 57MHz Rex that has the issues… might take microamps advice and do some surgery tonight… i think i’ll look at the guts of that Rex first. I think it might be that car with the wrong freq. number
- April 30, 2003 at 4:39 pm #32372
  Lazboy
  Participant
  Posts: 143
  have you modded the TX coz iv herd that the cars will accept any freq if the signal is strong enogh
  
  but i look like there is a problem with the 27 57 issus
  
  ________________________________________________________
  CompactChar-G 40Mhz S2000 range mod, spring suppention
  Bit Char-G 57mhz Booster Fairlady Z
  MINI Z Wrx WRC 2000 This thing RIPS
- May 1, 2003 at 4:22 pm #31975
  z-beam
  Participant
  Posts: 2265
  good luck:)
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