Do NOT make the mistake of investing $$$$$ on the boat + fittings
and save little $ on TX/RX.....lost your deep-V lady and cry.
For electronics, you pay what you get. Trust me, I am working
in this industry. There is no fish fin soup for fun-see price.
The best and cheapest TX+RX set now is Spektrum DX4C for USD100.
or DX2E for USD60, just simple and good.
FLYSKY GT3B/C does not have a good regulator inside and they
consume batteries very fast, and that's why they need LIPO
rechargeables.
I have the following TXs:
Spektrum:
DX2E (w/SR201 RX): USD60
DX3C (W/SR301 RX): USD99
Both very good and I haven't changed DX2E batteries for ONE YEAR
they still work until today.