got a radio???

[rc/guitarman69]

Okay iam buying a jr xr2. Its 27mhz. So if i buy a 75mhz crystals would it be 75mhz? Can i us any Reciever with it? But it has to have the same crystals to work right or do i have to buy jr recievers for every car. Please let me know iam new again to the hobby since ive been out for 5 years! :D :confused:

[Hairball]

Uh, no. hehe

The crystals set the frequency, not the modulation. Some of the really expensive radios have a removable modulator that you can change (27mhz, 75mhz, or 40mhz in Europe).

And make sure you use a reciver on 27mhz. 75mhz recivers won't work with a 27mhz radio.

[rc/guitarman69]

So i can use any reciver with 27mhz with the radio? Thanks :confused:

[rc/guitarman69]

Okay so if it has 27mhz crystals in the radio. I can change it to a 75mhz and it would be 75mhz right? So i wouldnt have to buy a reciver. Cause i have two 75 mhz recivers and one 27mhz. So just change rado crystal and iam set? Please help me out. Thanks :confused: :D

[KilRuf]

If your radios is a 27mhz radio, then thats all you can use. Period. End of story. If you want to use 75mhz, then you have to buy a 75mhz radio. You can't just change crystals. There might be a possibility that if you have a good radio, you can change the module from 27 to 75 so that you can change your crystals. But modules run around $50 and up to/over $100. But also, you need to change your receiver also. I hope this helps.

Mike

[rc/guitarman69]

Okay i understand but most recivers can hold 27mhz and 75mhz right? So all i ahve to do is change the reciver crystal to 27mhz right? Iam going to use a jr racing xr2 and i have 2 Futaba recivers. They say the can handle 27 and 75mhz. So i guess i can sue them right? Thanks :mad: :confused:

[XXXER]

No, if you have a 27mhz RADIO, you MUST use a 27mhz receiver. IF you have a 75mhz radio, then you MUST use a 75mhz receiver, they are NOT interchangable. You must use the right crystal freq. with the corresponding mhz.

[KilRuf]

hehe :D