**7.3.1 Results of noise level measurement for different LCD panel**

Variation of noise level for Camera module at different operation mode is shown in Figure 60. We can observe the significant variation of noise level in 2586~2600MHz frequency range when Camera is activated and operated at Record mode. Since the crystal oscillation of Camera is 48 MHz, we can conclude that its 50th and 54th harmonics just fall at 2400MHz and 2592MHz, the most significant noise level frequencies, respectively. Therefore, the receiving sensitivity and thus the communications performance in 2.4 GHz band are degraded by the activation of Camera functions.

Fig. 60. Noise level for different Camera operation mode.
