Setting Up and Using Your VM1 System
8.Turn on the power to the VT3L or VH3 transmitter; all three Battery meter LEDs will light if the battery is sufficiently strong. At this point, either the “A” or “B” orange LED on the front of the VM1 will light (depending upon which antenna is receiving the stronger signal).
9.Set the VM1 Meter switch to “RF.” One or more segments in the VM1 meter should
light. If the “HIGH” segment lights, the VM1 is receiving an optimally strong RF signal and is placed and positioned correctly. If the “LOW” segment lights (indicating a relatively weak RF signal), try relocating the VM1 or changing the position of one or both of its antennas.
10.If you want to use headphones to monitor the transmission, connect a standard
11.Turn on your connected amplifier and/or mixer
but keep its volume all the way down. Next, make sure that your transmitter is unmuted by setting its Audio switch to “On.” If you are using the VH3 transmitter or if you are using the VT3L transmitter with a connected lavalier microphone or headset, speak or sing into the mic at a normal performance level while slowly raising the volume of your amplifier/mixer until the desired level is reached.
If you are using a VT3L beltpack transmitter equipped with a lavalier microphone, note that correct lavalier placement is critical to sound quality. We recommend that you place it as shown in the illustration on the
SAMSON
right— as close to your mouth as possible but off to one side (to minimize nasality) and unobstructed by
clothing. Bear in mind also that omni microphones
(mics which pick up signal from all directions) are more prone to feedback problems than unidirectional (cardioid or hypercardioid) ones; in general, you can avoid feedback by tak- ing care not to use any microphone directly in front of a PA speaker (if this is unavoidable, try using an equalizer to attenuate those high- or
12.If you hear distortion at the desired volume level, first check to see whether the red “Peak” LED on the VM1 is lit. If it is not, make sure that the gain structure of your audio system is correctly set (consult the owners manual of your mixer and/or amplifier for details). If the red “Peak” LED is lit, do the following:
•If you are using a VH3 transmitter, use the supplied plastic screwdriver to turn its Microphone Input Level control (trimpot) slowly counterclockwise (towards the “Min” position) until the distortion disappears.
•If you are using a VT3L transmitter with connected lavalier microphone or headset, its Audio Input Level control has been factory preset to provide optimum level for the particular lavalier or headset model being used and so no adjustment should be necessary. Any distortion present should therefore simply be a matter of the microphone being too close to the mouth; try moving it further away. If this does not solve the problem, use the supplied plastic screwdriver to turn the Audio Input Level control (trimpot) on the VT3L slowly counterclockwise until the distortion disappears.
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