Is it as fast as the helios?Will it work with my kr-301f receivers? Thanks for all the info you give.

Will it be offerd in 75mhz? thanks

It is a little faster then the Helios. You can adjust the Tx speed mode to the Rx that you are using, so YES!

It will not be offered in 75MHz. 27MHz, Tx only and later 2.4GHz.

It is the Mars. I still use mine with spektrum system..... Love it, Love it.

Thanks for info,Will my rf-102f module work with it.

well i orderd one,if it doesn't work with the old module,i'll have to get the 2.4

How much did you get it for?

So is there going to be a updated helios too?

i got it from ko for 219.00 tx only

Just got mine
The losi lipo works on it, plugs in exactly like the Helios (+ve side towards the rear of the transmitter)
I'll try it out at tomorrow's race.

i need a ex-1 ur english manual, can help me?

What are the differences between the EX-1 UR 2.4 and the new Helois 2.4?
Thanks john Schoenauer

Its the same for both.

Will http://www.spektrumrc.com/Products/D...ProdID=SPM1013 fit in the EX-1 UR?

I have a Spektrum module in my EX-1 Mars, they are essentially the same radio. I don't see why not.