does data and voice use the same radio receiver?

[kevdliu]

Hi,

I just tried juicedefender today and after a while, I checked the battery usage and it shows that the cell standby is on all the time. I know its because to receive calls and txts. But does data use the same radio on a CDMA phone? If so, does juicedefender still save battery?

Thanks!

 

[Gasai Yuno]

There's only one radio transceiver in the phone.

Data and voice on CDMA use different signal coding.

 

[kevdliu]

so basically juicedefender wont save any battery?

 

[Gasai Yuno]

CDMA EV-DO requires more power from the phone, so it might as well some power on that.