Here is a new competitor in the lighweight 200mW 5.8G VTX market, the FX758. This model is a direct competitor of the Boscam TX5823 and the Flysight TX5200m. I will compare the first two models in this mini-review
In term of size, both models are similar
With the metal casing, the weight of the FX758 is equal to 2.2g
versus the TX5823
or the TX5200m
Without casing, the weight decreased to
Pin 3 & 4 of the RTC6705 are used to select frequency band. Actually the Band “A” is selected.
Short Pin 1 as shown in blue to activate freq selection (CS) / to select band “E” (Boscam band like the TX5823)
according to this table
FOR ONLY BAND E + Channel select with DIP switch: pin1 to gnd
FOR ONLY BAND A + Channel select with DIP switch: pin1 to gnd + pin3 to gnd + pin 4 to gnd.
Even if the output power seems a little bit less versus the TX5823, the signal is much more cleaner and robust to noise/motor interferences. With 1.5g without casing, this FX758 can be ideal for cheap and light 5.8G FPV DIY project.
+ Clean signal (as good as the TX5200m)
+ Band “A” by default (like the TX5200m, fatshark compatible)
+ Work from 3.3V up to 5V
– Not true 200mW
– Band selection requires to remove the metallic cover
– Not Band “E” by default (Boscam)
– Can’t select freq out of the box (need to short pin 1 for band E and eventually pin3&4 for band A as depicted in photo)
This VTX have been courtesy provided by Banggood in order to make a fair and not biased review. I would like to thanks them for this attitude. You can find it actually for 11 USD at FX758