5. On the wireless audio receiver, use the SET button, and up and down arrow buttons, to
choose AF Out. Check that it’s set to 0 dB.
6. On the transmitter, use the SET button and up and down arrow buttons and select
Sensitivity to control the microphone’s level. For dialogue, -21 dB is a good starting
place.
7. Sound check the person (or other source of sound) you’re miking up and adjust
transmitter sensitivity so levels on the transmitter never reach 0 dB.
8. Set the recording device’s input so record levels don’t exceed -12 dB.
9. Always monitor what the recording device is actually recording. For troubleshooting it’s
helpful to plug your headphones into the PHONES jack on the receiver and give a listen.
Setting levels in studio
Each receiver, 1 through 4, in a studio cart is already internally wired to a mixer channel, 1
through 4. The headphone jacks on receivers and mixer are ¼” instead of ⅛”.
1. Set the board’s gain to half on each channel, 1 through 4.
2. Set each channels fader, as well the MAIN MIX fader, to zero.
3. Make sure the front panel of each receiver indicates that it’s set to AF Out +6 dB. (If not,
push in the big knob once and rotate to AF Out, push the big knob in again and rotate to
select +6 dB, then push the big knob again to store +6 dB as the AF Out level.)
4. On the transmitter, start with sensitivity at -21 dB, sound check the person, and adjust so
the transmitter’s levels never reach 0 dB, just as in the field.
5. Adjust each channel's level up or down as needed to create record levels that don’t
exceed -12 dB.
What is squelch?
Squelch takes the quiet parts and makes them quieter. Squelch can’t distinguish noise from
signal. When audio level falls below a certain threshold, all squelch does is turn it down some
more. So, while squelch can reduce background noise, it can also create artifacts in the sounds
you want to record.
1. On the receiver’s home screen, press SET to open the menu.
2. Press the UP or DOWN button until you find SQUELCH.
3. Press the SET button to open the squelch settings.
4. Choose a very low setting such as 5 dB.
5. Press the SET button again to save your changes.
Travelling overseas
Just as the Federal Communications Commission regulates use of the electromagnetic
spectrum in the United States, similar governmental agencies do so in other countries.
9/18/2018 rev. 10/11/2024 p. 6
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