i have a flysky gt3b and for some reason on my one rc i can only get about 25 feet.. tried a diff rec. same thing.. all my others work great.. any ideas??

What kind of vehicle is it? What is the chassis made out of? What motor, esc and servos are you running? If you have other models and it only happens to this one then it is definitely something in the vehicle itself. It could be that you have a draw on power and the receiver is not getting enough juice to run it.

xxx-scb with stock steering servo and duratrax element brushless setup..

I found that with the stock servo in my xxx-sct (they should be the same) I needed to add a capacitor to the flysky receiver because for some reason the servo when turned left to right quickly would cut out (not enough power being supplied). It could be that your servo is causing the issue by drawing to much power. Try using a servo from another vehicle and see if you have the same issue. I also noticed that the Duratrax Element is made my Castle and looks like a sidewinder look into a castle link and see if there are BEC settings that can be changed. Also what do you have in the other vehicles for an ESC? You could always try moving the esc to another vehicle to see if the issue moves as well.

I had trouble with the antenna in both my FlySky TX and RX. The one for the RX looked fine externally but had pulled off the board. Resoldering them took care of the issue.

I have one with about an inch missing off the tip and still goes so far I cannot drive. Maybe you got a bunk RX. They are only $8 each or something like that. So Im guessing theres a few duds. If its less then 30 days old return it. If not maybe keep it for spare parts incase you break a case or anteena. What $13 for a replacment shipped.

i just had the same issue.. luckily i ordered an extra rx just to have when i swapped the rx my issue went away. call up hobby partz and explained.... so they sent me a replacement rx shipping included.