Remote polar pattern change via phantom power

[lampas]

Does someone know,

what is the idea behind TLM170r remote pattern via phantom power ?

I couldn't find any info or schematic for N48R or N48R2 ...

I found info on one version of C414, but it use multipin tuchel connector...

 

[RuudNL]

The N 48 R-2 controls the polar pattern remotely by varying the phantom voltage.
The range is ± 3 V of the nominal 48 V value.

 

[lampas]

Great, thank you very much.

 

[moamps]

I have to admit that this is a concept that would be interesting to analyze in a little more detail, not explicitly in the sense of using it in a DIY design.
It would be interesting to see what would happen if another microphone (as AKG 414) was connected to that power supply and the switch was set to a position other than P48.

 

[Paul-o]

I found this document at Neumann's site.

 

[RuudNL]

"It would be interesting to see what would happen if another microphone (as AKG 414) was connected to that power supply and the switch was set to a position other than P48."

Nothing would happen. Phantom power is specified as 48 V + or - 4 V. (So: 44-52 Volt.)

 

[moamps]

Nothing would happen. Phantom power is specified as 48 V + or - 4 V. (So: 44-52 Volt.)

Fine, but then why is there a special P48 position on the power supply, why didn’t they just say it is the central position where the cardioid pattern is?





And in the user manual they say the following: