Yesterday, finally, I had enough time to hack my Syma X5C transmitter.
Why I had to make this hack risking to brick my transmitter? because I need more the 30m for a decent outdoor flight.
Last week I was curios what’s inside the Syma X5C transmitter and how can I extend the control, as well the flight distance. Of course, like a bad kid, I immediately opened it 🙂
After few minutes I found why the range is that short. The tiny antenna on the top of the RC is only a fake plastic with nothing inside . The antenna is only a 3cm long wire soldered on the TX module.
I decided to add a true 3db or 5db 2.4Ghz antenna to the transmitter. As most of the WIFI routers are operating at the same frequency (2.4Ghz), I decided to order from Ebay an antenna and a WIFI pigtail to hack my Syma X5C transmitter. Unfortunately, the shipping from China to my country takes more then 3 weeks…I don’t want to wait that much…lucky for me I found a dead WIFI router that was perfect to recover the antenna from it.
Now I have everything to start the Syma X5C range hack. All the steps of this hack are also documented by images at the end of this post.
- Step 1 – open the dead router;
- Step 2 – remove the 2.4Ghz antenna from the dead WIFI router;
- Step 3 – open the Syma X5C transmitter;
- Step 4 – unsolder the power wires of the Syma X5C transmitter (red +, black -)
- Step 5 – remove the original “antenna”, that tiny 2cm wire from the TX module;
- Step 6 – checking and testing the GND and the signal pins on the TX module;
- Step 7 – soldering the WIFI pigtail to the TX module;
- Step 7 – soldering back the power wires;
- Step 8 – reassemble the transmitter;
- Step 9 – mount the 3db WIFI antenna to the Syma X5C transmitter;
- Step 10 – Go out with my Syma X5C and test the extended range of the transmitter, hopefully up to 80-100 meters.
To determinate the exact range extension of the X5C transmitter after adding the 3db 2.4Ghz antenna, I need to borrow a radio frequency spectrum analyzer.
Syma X5C range Hack video
I think the images will talk by themselves and, if you want to extend your Syma X5C transmitter range, you will easily reproduce this hack.