Hello

I try to find a good Tx. I'm looking in internet checking the diference in characteristics and price.
I find out that were I live I can't use 75Mhz (is that the Frequency right? or is the Channel?).
Someone tell me that in some models is possible to change the "Frequency Module".
I really appreciate some lights about and also some recomendations.
Can i change the module in this Tx? JR XS3 Pro.

Thanks

are you going to be using it for a car/boat or airplane?

Surface vehicles use the 75Mhz band and air uses 72mhz with the channels within those bands

here in the States radios(tx) are supposed to be sent to the manufacturer to change the frequency...not sure about where you live....
may be able to just change the cyrstal and be done with it

Many TXs have frequency modules which can be swapped out. These modules contain the crystal and a bunch of other RF components. The modules for my Futaba 9C are about $50 each. I know guys that just open up their module and swap out the crystal, and it works fine. Problem is that this is against FCC regulations and hence frowned upon by the AMA. I decided to just cough up the extra $$ for a second module and not worry about pi$$ing off the FCC or AMA, or worry that my illegally modified TX might have too much out of band noise and crash a plane on a neighboring channel.

Also some TXs that take freq modules have synthesized modules available, these are more like $100, but allowing you to pick any channel you want, at the cost of a little more power and shorter TX battery life...

I'm looking for a Pistol Tx for my monster truck.
I understood that I can change the frequency module in JR XS3 Pro TX, is that right? JR say: full-synthesized "Crystal-free"

Bud also I start to look for a stick Tx for Heli (maybe planes).

Were I live 75Mhz is not allowed (military). Look like I have to use 35Mhz.

Do you know what models of JR stick Tx have synthesized module?

Hello!
As you live close to where I live (Sweden) I could perhaps give you some advise.
In Europe only the 35Mhz band is allowed for airplanes and helicopters. This band contains more than 20 frequencies! Surface vehicles like cars or boats are not allowed on this band!!!! The reason is safety.
Cars and boats can only be run on the 27Mhz and 40 Mhz band. You are allowed to fly on these bands also but you are running the risk of getting shot down by a car or boat hobbyist.

As for the JR car radio which has the novelty of changing frequencies without changing crystals, means you can choose your frequency by just turning a nob on the radio.
But remember...you can only do so within the band you have...let's say the 75Mhz band,
Which contains many frequencies.

So my advise is to get a simple car radio on the 40 Mhz band and get an airplane (heli) radio on the 35mhz band.
And do recommend that you get help from a club using a trainer and "buddy box system" when you decide to start flying. Trying to learn by yourself could be very annoying....

JR makes good radios..I have used these radios since they first started to come out in 1980.
I now use a JR 388S.
Regards!
Jan K
Sweden