This paper mainly focuses on exploring the influence of the radio frequency field's frequency and the different atomic coherent situation on the transient effect. It is found that the polarized coherent atoms can still experience a strong transient effect whether the radio frequency filed is resonant or detuned with the Larmor precession frequency， and the transient oscillation frequency depends on the power and frequency of radio frequency field in terms of Ω=Ω02+δ2. Furthermore， the amplitude of transient effect depends on the population of the coherent atoms is explored. The more polarized coherent atoms， the stronger the transient effect presents. At last， we analyze these phenomena by calculating the absorption of beam based on the Liouville equation. There is a good agreement between the experiment data and the theoretical results. These results can provide further insight into the relationship between the coherence of atoms and the transient effect.