Of course not. The performance of antenna depends on length and resistance. The signal will be the best when antenna is 1/4 long of the wavelength(λ). For 433.92MHz, 1/4 of λ is about 17cm. Other length may shorten the distance. 1/2 or 1 λ are also possible, but the resistance must be adjusted as well. Pls contact us if you want to change the antenna.