Hello, I design a system on GNU Radio with USRP and coded it in Python. I am hopping frequency. Then I restart this process. I save all max. value at different frequencies. I am sharing datas with you. All data you can see in this document I take connection with cable. I mean I connect TX port to RX port with cable. I know possible dangers.
My problem is I expect all datas are same even they don’t be same frequencies. I would not expect the dB difference between 100MHz and 6Ghz almost 40dB. Another problem is Even though I dont change the position of anything (Because I connect with cable) I take different values at replays. With the cable the difference is almost 3dB. But if I connect with antennas the difference at some frequencies is maybe 15dB even I don’t change the position of antennas. If I stabilize this, I change position of antennas dynamically. I will be glad if you help.
data.xlsx
Description: Zip archive
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