Re: Zaxcom wireless too noisy

On 31 Aug., 04:54, Matt <stuffandze...@xxxxxxxx> wrote:
On 31 Aug., 03:37, Gtrew <g...@xxxxxxxxxxxxx> wrote:



The 4900 receiver module is designed to output line level. However, we
(Trew Audio) did receive a 4900 that was internally set to mic level
on one output of each receiver (there are two outputs for each
receiver in the event they are used as stereo receivers). Reseting the
internal switches to line level solved the noise issue. Anyway, if you
are having to send the outputs into a mic level input, there's your
problem. If so, a call to Zaxcom will inform you how to pop the top
and set the internal switches to line level.

Glen Trew

On Aug 30, 7:37 pm, Michael Clark <audiofileso...@xxxxxxx> wrote:

On Aug 30, 8:06 pm, g...@xxxxxxxxxx wrote:

The bias voltage on all Zaxcom wireless is 3.3V so I do not suspect
the bias voltage to be the problem.

Our dealer supplied the B6 so I do not know if is the red version
(High SPL). If so, this would account for the higher noise floor.
The B6 has worked well in the past so it should not be a problem now.
Matt please email me your phone number and I will call you tomorrow.
The dynamic range of the system is about 105dBu so the only noise
should be the self noise of the microphone.

Glenn

Yep, mines a Red Band B6.

Thanks for all your response.

I`ve got a grey marked (standard output) B6 specially adapted to the
3.3V of the TRX (as Glenn mentioned).
The noise sounds like a white noise and in addition to that I`ve got
loads of rf-modulation that changes it sound and level depending how I
have the mic cable running. If the trx is attached to a body its
getting even worse.

The rack is putting out line level on right outs and mic level on left
outs by factory settting. One can change set if required. I am using
the line out (have tried using the mic lvel out just to see if it
makes any difference - it doesn`t)

Today I will get 2 Sanken COS11 that are treated with rf filters by
ambient (the official Zaxcom dealer for Germany). They are very
supportive and trying to help me with all effort. So I do hope that
this will help.

Cheers, Matthias

one thing to add:

although the Zaxcom system works without a compander-system I get a
sound just like a compander. If I speak "check" or something similar
short and powerful into the B6 the noise floor goes down and comes
back right after.

Matthias

.

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