Maestro MIC2 audio AC noise

Hello.

I have a problem with Maestro MIC2, not its possible transmit without high noise, such AC power, I tested dynamic microphone, electret capsule, Trust quasar headset, Heil Sound Proset Elite, Heil Sound Pro7, with and without BIAS all with same result. Also I removed the AC switched power supply using a linear power supply. It is possible that I have a hardware problem on Maestro?

https://vocaroo.com/i/s15MsA7A5DbR I attach audio sample of noise.

Thanks in advantage, Miguel EA5GF

Miguel

20 Posts
3 Reply Likes

Posted 7 months ago

7 months ago

Michael Walker, Employee

862 Posts
251 Reply Likes

Hi Miguel

Please open a support case.

Mike

Comment

7 months ago

Steven Linley

383 Posts
67 Reply Likes

It might be because of the mic jack plug wiring. The mic plug must have a TRS plug (Tip Ring Sleeve).

Comment

7 months ago

Howard AE3T

5 Posts
0 Reply Likes

I have exactly the same noise problem using any mic plugged into the Maestro. It is worse with the flex FHM-2 mic. Any suggestions?
Howard AE3T

Comment

2019-02-25T10:03:15+00:00

Miguel

20 Posts
3 Reply Likes

Try change Power supply by another.

6 months ago

Miguel

20 Posts
3 Reply Likes

Hello.

I send finally to Flex EU service, after change the display and back to my home have the same problem:-( Arrived from factory with this problem, tested with two Flex radios and MIC1 input. I will ask the seller to return the money or change it for a new one, It is a manufacturing defect and I could not use my new Maestro after two months.