Rode Nt2a picks up radio waves?
Hi, I bought a used Rode nt2a. Now I have the problem that in the evenings I can hear radio waves in the mic input. (Not during the day). It's not the case with my Rode nt1a. At first I thought it was the single-shielded cable, but when I ordered a double-shielded one, that didn't solve the problem. When I connect my interface (Rode Ai1) to my laptop (Microsoft Surface 8), this interference doesn't occur. Does anyone have any idea what the problem could be? I've already tried plugging the PC directly into the wall instead of into a power strip. I've also tried a newer power strip.
(2 votes)
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Somewhere the shield or the earth is missing.
Is the socket to which the PC is connected also properly mounted?
If there’s something wrong, you felt the shield and there’s interference.
Try the following:
If you know that the microphone again captures interference signals, hold your finger or hand to the metal from the microphone or to the wire grid from the basket. (No fear, nothing will happen to you)
If no more radio stations are to be heard, this confirms my guess.
Then there’s something wrong with the outlet. For example, you could connect the PC to another socket.
Hey, thanks for the quick answer! I had actually had my microphone taken the days completely into my hand and then had as good as no or no noise. (It was still with the simply shielded cable)
See how I suspected. In most cases, the problems arise with outlets with classic zeroing. The neutral conductor is used as a protective conductor. Try inserting the power plug differently. If then it is completely calm, it is definitely at the outlet.
Even if you connect to this socket, the original problem remains. That’s why it didn’t use anything to connect the PC to a power outlet.
That this only happens in the evening, it indicates that there is something that only sends at the time. Most often these are some long-wave transmitters etc. maybe also some amateur radio or something.
I suggest that the shielding of your Mike is not good enough, so long-wave transmitters, in particular very powerful guitars can sometimes even make gutters or cooking pots a receiver.