千兆PHY EMC问题请教

2dmin

最近做了个ONU，用的千兆PHY是 IP1001,在做辐射测试的数据如下* e4 o1 s! Q9 t; h^3 n8 `( G, Y
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水平测试：' S6 t( w, S7 S& ?
NO.FrequencyMHzFactordBReadingdBuV/mEmissiondBuV/mLimitdBuV/mMargindBTower/Table
Cm
deg
159.1014.8421.5736.4140.00-3.59--*F2250.6814.8341.8656.6947.009.69--F3374.3518.1532.1450.2947.003.29--F4500.4520.8830.3251.2047.004.20--F5563.5022.3625.5247.8847.000.88--F6626.5523.6228.0851.7047.004.70--F7750.2325.3323.2948.6347.001.63--F8813.2726.1122.9049.0147.002.01-- 9873.9026.5320.0146.5447.00-0.46--F10876.3326.5927.9254.5047.007.50-- 11949.0827.8115.4943.3047.00-3.70-- 121000.0027.7517.0944.8447.00-2.16--
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主要是125M时钟及其谐波过不了，请问这方面如何减小辐射，谢谢！