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Model Forum / Radio Controlled / Helicopters / August 2003Please Help with 35MHz Dragonfly and 36MHz Transmitter
I have recently purchased a Dragonfly without transmitter. The Dragonfly does use PCM... The guy supplied me with a 35.180MHz TX crystal to match the one on the (all singing and dancing) receiver/controller board. I have a Futaba PCM 1024 7UAPS running on 36.530 MHz I tried using the 35MHz crystal in my TX module however no luck. Can I just purchase a 35MHz module to use with the crystal ??? I spoke to the Futaba rep and he said that I would probably need a 35MHz module and a Futaba crystal. He mentioned that the crystals cut by other manufacturers are not necessarily compatible with other manufacturers ? This would be costly and I would probably need to order the module and crystal from UK as it is not an australian frequency. Another thought is... Could I unsolder the 35MHz crystal from the Dragonfly receiver board and solder in my 36 MHz futaba crystal. This would make it legal in australia and at a very small cost. There may be a slight loss of range associated with this - Any thoughts please ??? > I have recently purchased a Dragonfly without transmitter. The Dragonfly > does use PCM... [quoted text clipped - 7 lines] > > Can I just purchase a 35MHz module to use with the crystal ??? Just in case anyone is reading this and may help... I tried using the original Dragonfly controller. Unfortunately I could only get hold of a 72Mhz version, in which I plugged in the 35.180TX crystal. The tail rotor started spinning but the servos did not seem to work properly. As I moved the sticks around the main rotor began spinning although everything was out of control o I unplugged it. Then, I tried my 36MHz RX crystal in the dragonfly receiver board with my 36MHz transmitter but that did not work Then I re-soldered the 35.180 receiver crystal on the dragonfly and tried a Futaba 35.180 TX crystal in my transmitter but that did not work either. In all cases when I used my controller I switched between PPM and PCM just in case. I am running out of options. I may need to get hold of a 35MHz Module to fit in my Futaba FF7 PCM transmitter. If anyone can recommend a distributer that is willing to freight to Australia please post !!! > I spoke to the Futaba rep and he said that I would probably need a > 35MHz module and a Futaba crystal. He mentioned that the crystals cut [quoted text clipped - 20 lines] > > > > Can I just purchase a 35MHz module to use with the crystal ??? > Just in case anyone is reading this and may help... > [quoted text clipped - 46 lines] > > > > > > Can I just purchase a 35MHz module to use with the crystal ??? 35 MHz is not legal in Australia but considering that you probably fly it very close to yourself around the house ;-).. Order the module from Cyberheli, cheap and quick. Al :-) Cyberheli does not have the part... Anyone else you can recommend..-..-------------- > > Just in case anyone is reading this and may help... > > [quoted text clipped - 58 lines] > Order the module from Cyberheli, cheap and quick. > Al :-) |
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