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Reply To: reasons for tch drop rate


I beleive that CDMA operators in India are using EGSM band for their operations. It is recommended to use narrow band filters, covering the band of frequencies that you are using with atleast 90dBc(or better) attenuation of EGSM band frequencies, which can be used in series with your BTS equipment filter. However be aware, such narrow band filters are usually a costly affair.