Anyone here know the value of lower cut-off and higher cut-off frequency of 800Mhz and 250Mhz for MALA ProEx GPR system to process bandpass filter?

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A. Ebrahimi

I think it depends on your data and specially noise contents. Practically, it may 200MHz- 350 MHz band works for 250 MHz antenna.

Mimi Diana Ghazali

Thanks A. Ebrahimi, how about 800Mhz antenna.. or any equation to calculate that?

Mohamed El-Behiry

You have to determine the frequency spectrum of your data. This can be achieved in Reflex software under the menu: 1D-filter, bandpassfrequency. You can choose the low and high cut values that make your data noise-free.

Saeed Hadiloo

You need to check the amplitude of different frequency in processing software and based on the amplitude of frequency you can select any frequency is suitable for your data.