"Larry Pint" <lpint@[EMAIL PROTECTED]
> wrote in message
news:r4adneJSNtI-wUrbnZ2dnUVZ_qWtnZ2d@[EMAIL PROTECTED]
>
> "Tim Perry" <timperry@[EMAIL PROTECTED]
> wrote in message
> news:46d6cf6c$0$6431$4c368faf@[EMAIL PROTECTED]
> >
> > Before I can answer I must ask a few questions.
> >
> > Are these Handheld units or body packs / Lavalieres?
> >
> > Where are receivers located in relation to the transmitters?
> >
> > These receivers have diversity antennas. Are the antennas oriented
about
> > 90
> > degrees apart? Do you have direct line of sight to the transmitters?
> >
> > Are you aware of a squelch control on the receiver?
> >
> > These receivers have both line level and mice level outputs. If you
are
> > feeding line level into a mic level input I would expect to encounter
> > overload, feedback, and distortion.
> >
>
> Tim,
>
> These are lavalieres.
>
> In my testing in my garage it varied from 4 to maybe 16 feet between
> transmitter and receiver. When I tested them at the school it varied
from
4
> to 45 feet apart. Always in line of sight.
>
> I have tried the antennas from parallel to about 120 degrees. (We
normally
> operated them in the 45 to 90 degree range, when they were working.)
>
> I am not aware of a squelch control, just sensitivity. (There is also
an
> output level for the line (1/4 inch) out, but I was using the balanced
XLR
> out.) In my garage I was feeding the balanced XLR out into a karaoke
> machine's 1/4 inch line input. At the school I was going XLR out to
their
> sound board's XLR input.
>
> Thanks for you help.
>
> Larry
>
The latest version of these is the Nady UHF-3 which sells for $135 for the
complete system.
Using LT mics for theatrical performance is probably up there as one of
the
most difficult aspects of live sound (right next to getting the drummer to
play softer )
It's hard to troubleshoot by long distance but from the description one
thing to consider is that the mic elements have hit the floor too many
times. You might try swapping some around and see if the problems move
with
the mics.
The next best guess is that RF is getting into the audio at or before the
sensitivity control.
Try testing with just headphones if the "feedback" sound still happens the
problems wont be mic gain or sensitivity.
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