| Electronics > Beginners |
| Interference problem on a wireless mic system |
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| The Soulman:
Is there a setting to reduce rf power from the microphone? Could indeed be multi-path, or rf signal is being picked up by the speaker-system and getting in the amplifiers feedback loop. |
| ogden:
--- Quote from: The Soulman on May 05, 2018, 07:28:05 pm ---or rf signal is being picked up by the speaker-system and getting in the amplifiers feedback loop. --- End quote --- :palm: 173/174MHz getting in the audio amplifier to create feedback loop? - impossible due to zillion reasons. |
| Towger:
I have experienced interference from the lighting control computer with old mikes on those frequencies. The computer was beside the mixer and receivers and would breakthrough from time to time. Of course they went on got new mikes on the 2.4ghz band. Hit head against wall. |
| ogden:
--- Quote from: Towger on May 05, 2018, 08:05:20 pm ---I have experienced interference from the lighting control computer with old mikes on those frequencies. The computer was beside the mixer and receivers and would breakthrough from time to time. Of course they went on got new mikes on the 2.4ghz band. Hit head against wall. --- End quote --- This is completely different. Lighting computer transmit antenna was very close to receive antenna of mikes. If receiver of mikes does not have proper preselector filter after antenna, then it's LNA can be saturated by out of band interferer (of lighting control computer TX). This is not the case OP describes. |
| Towger:
It was from the computer's bus. The lights are hard wired with multiple cat5 up to the stage, where they change over to traditional DMX/110ohm cable. |
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