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erberes 24/11/2021
It's a good value set but unfortunately no upper frequency limit or insertion loss is specified. I've checked the N to SMA adaptor with a spectrum analyzer till 6GHz (the easiest to check and it should have also the highest limit). First normalized with good quality adaptor and then swapped out only the adaptor to the received one. Insertion loss stays within 0.2-0.3dB till ~1.5GHz (that is good), gradually increases to ~0.5dB till 3GHz and further increases almost to 1dB around 6GHz (so it's not the best for high frequency). In the picture the N to SMA adaptor from this set is on the right.
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