Vega RMT-10 VHF User Manual

RMT-10 VHF

Rack-Mount Transmitter

Instruction Manual

099-0068D

2 Vega RMT-10

TABLE OF CONTENTS

Quick Start
A Word to Vega Users
Unpacking
Introduction
Installation

Whip Antenna Length
XLR Connector
Power Supply

Adjustments

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Audio Compression Adjustment*
Audio Level Setting

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Frequency-Compensation Adjustments

Compatibility
Frequency Selection
Troubleshooting

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4
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Antennas .......................8

RF Noise .......................9

Warranty (Limited) ...................10

Factory Service Center ................10

Claim ..........................10

Specifications .....................11

Quick Start

Please see Figure 1 and the instructions on the next page for a quick start.

A Word to Vega Users

In selecting Vega equipment, you are in the company of audio professionals
worldwide.Leadership for over 30 years has made “Vega”synonymous with wireless
equipment. Our equipment provides superb sound quality, outstanding performance,
and the durability needed for years of successful operation.

Unpacking

Verify the number of boxes shown as “shipped” has been received in good condition.
Unpack and save cartons for storage or reshipping. If, for any reason, you do not find
the equipment to be completely satisfactory, please immediately contact your Vega
dealer or the Vega factory.

Should service ever be required, remember your authorized Vega service dealer
knows your equipment best. They have the training and test equipment necessary to
restore your equipment to its peak performance.

Please feel free to contact either your authorized Vega dealer or the Vega factory for
information or assistance at any time.

Transmitter 3

5. Put on rack-mount (1a) “ears” or (1b) rubber feet (for details see “Installation”

next page).

6. Attach the whip antenna (see the “Whip Antenna Length” section) or the
optional dipole antenna to the ANTENNA connector on the rear panel.

7. Connect wall-type power supply to the rear-panel DC INPUT and then plug
the power supply into an ac outlet.

8. Connect audio source to the rear-panel XLR connector (see “XLR Connector"
next page).

9. Set the rear-panel INPUT LEVEL (MIC/LINE switch) to the LINE position.

10. Set the rear-panel AUDIO COMPRESSION switch to LINEAR.

11. Turn on the RMT-10 with the front-panel POWER switch.

12. With an audio input applied to the unit, adjust the front-panel INPUT LEVEL

ADJUST control until the AUDIO LEVEL bargraph meter indicates peaks in
the 0 to +2 VU range.

13. If the peaks do not reach at least 0 VU with the previous adjustment, set the
rear-panel MIC/LINE switch to MIC, then readjust the front-panel AUDIO
LEVEL control until the AUDIO LEVEL bargraph meter indicates peaks in the
0 to +2 VU range.

14. Attach an earpiece or headset to the receiver, turn on, select the correct
frequency, then verify correct reception. See the receiver's manual for details.

4 Vega RMT-10

Introduction

This document descr ibes setup, adjustment, and operation only; detailed
maintenance information is not included. If you have any questions, consult your
dealer or the Vega factory.

YourVegaModel RMT-10 is a single-channel VHF FM transmitter.It transmits a mono
audio signal to compatible receivers (typically Vega PL-2s).TheRMT-10's “transmitter
module” ( PCB) can be swapped (by authorized personnel) to allow operation on a
different frequency—any one of over 1,600 different frequencies between 169 MHz
and 216 MHz. Consult your dealer or the Vega factory for details.

The RMT-10 accepts either line or mic audio via a standard XLR connector.The “input
level”switch allows selection between mic (–40 to –10 dBu) or line (–10 and +20 dBu)
audio input. RMT-10s may also be internally programmed to work with Clear-Com or
RTS wired intercom systems (“receive-only” mode). The RMT-10 may also be
configured to pass a 70-volt speaker line (input up to 250 volts push-to-talk).

Fine audio-level adjustments may be made using the 30-dB variable attenuator
conveniently located on the front panel. To improve intelligibility, the transmission
signal may be adjusted via “frequency compensation” and “audio compression”
controls. Two “frequency compensation” controls for boosting or cutting the low and
high frequencies are provided on the rear panel. The “audio compression” control
limits dynamic range by either a 2:1 logar ithmic compressor or a wide-range
automatic level control (ALC) system. See the “Adjustments” section for details.

Noise reduction is achieved with a proprietary two-ended compander system that is
alwaysactive.Thecompanderis compatible with Vega'sPL-2portable VHF receiver.

A 1/4-wave “whip” antenna is provided with the RMT-10. Other antennas, such as the Vega
Model 123U dipole antenna, may be used to facilitate rack-mount installation or to improve
coverage where the standard whip antenna would otherwise be blocked or shielded by
equipment cabinets or large objects.