dBTechnologies MOVING D Owner's manual

Brand: dBTechnologies

Model: MOVING D

Category: Television antennas

Type: Owner's manual

dBTechnologies MOVING D

The dBTechnologies MOVING D is a professional wireless microphone system that offers a wide range of features and capabilities to meet the demands of any live sound application. With its advanced digital technology and rugged construction, the MOVING D is perfect for use in a variety of settings, from small clubs to large arenas.

Some of the key features of the dBTechnologies MOVING D include:

True digital transmission: The MOVING D uses a true digital transmission system to provide superior sound quality and reliability. This system is immune to the interference that can plague analog wireless systems, ensuring that your signal will always be clear and consistent.

dBTechnologies MOVING D

Some of the key features of the dBTechnologies MOVING D include:

True digital transmission: The MOVING D uses a true digital transmission system to provide superior sound quality and reliability. This system is immune to the interference that can plague analog wireless systems, ensuring that your signal will always be clear and consistent.

TOURING RACK

Note applicative per il corretto

utilizzo del sistema

Application notes for the correct

use of system

Anwendungshinweise für die korrekte

Verwendung des Systems

Notes d'application pour l'utilisation

correcte du système

Page is loading ...

Moving D – System

ENGLISH

1 SYSTEM DESCRIPTION

Two versions are available, the Light version consists of a unit of six MOVING D-R receivers

included in a single containing rack and an antenna splitter AS6W; the Pro version in addition to

the Light system includes one HUB800 and one RPS10.

Following the application notes of this document you can get the best performance by this system

in any situation.

Therefore, the Touring Rack consists of the following devices:

AS6W

Antenna splitter, on UHF band (470 to 870 MHz) with six outputs, one per each MOVING D-R.

This accessory is always included in the MOVING D Touring rack and use is made of it to distribute

the radio-frequency signal of two antennae toward the six receivers without causing any

attenuation or deterioration of signal.

The AS6W antenna distributor contains also a filter intended for eliminating the frequency bands

below 470 MHz (VHF) and above 870 MHz (cellphones, WI FI) and, by means of phantom power

on RF connectors of BNC type, it can fed also other accessories described below.

MOVING D-ANT (Kit wide band antennae OWBA + stand adapter)

Omnidirectional passive antennae on UHF band with support for the microphone rod.

Antennae of omnidirectional type; can receive all frequencies of UHF band.

HUB800

Device for data connection between six receivers and an external computer.

This device, present only in the Pro version is connected to the six receivers with a special cable

and permits their management by means of an interface program in Windows Xp, Vista, Windows7

or Windows8 environment by means of an external computer connected through Ethernet or USB.

MOVING D-R Receiver

Single receiver module, up to six of them can be mounted in a single Touring Rack.

The receiver must be associated to a handheld transmitter MOVING D-H or bodypack transmitter

MOVING D-B; it permits to analyze the transmission frequencies so as to display and make use of

the ones having the least noise.

It is provided with a USB connection for the connection to a computer.

When it is mounted in the Touring Rack, the radio signal is fed to it by AS6W, otherwise a pair of

antennae OWBA can be connected to the connectors located on the back.

RPS10 -Rack Power Supply

Rack Power Supply it can supply all the devices located in the Touring Rack.

This device is used only in the Pro version, it is connected to the HUB800 that allows the

management of its single supply outputs.

RDA800W

Directive passive antenna on UHF band.

Antenna of directive type, with fin shape; it can receive all frequencies of UHF band with an

increase of 8 dB approx.

AA800W

Low-noise antenna amplifier on UHF band.

This device is fed by means of the phantom power of AS6W; by means of a 4-position switch

located on the device, the increase can be regulated on 4 levels: 5, 10, 15, 20 dB in function of

needs.

UPA800

Antenna attenuator. Also this accessory is fed by the AS6W distributor and, by means of a 4-

position switch located on the device, the attenuation can be regulated on 4 levels: 2, 6, 12, 18 dB

in function of the application.

ENGLISH

2 RADIOMICROPHONE AND RADIO INTERFERENCE

The presence of an always higher number of digital television stations (DTV) operating on the

same frequency band of all the kinds of radio-microphones make their use more and more critical.

This chapter includes a short description of the two kinds of radio interference that, to be precise,

involve all the radio-microphones, independently from their manufacturer.

These kinds of interference can be called “TYPE 1” and “TYPE 2” as reference in all the application

notes.

TYPE 1

RADIO INTERFERENCE DUE TO TV STATIONS AND OTHER SOURCES

This kind of interference is due to the presence of digital or analog TV stations or other radio-

frequency sources present on the place where use is made of radio-microphones. These

interferences can vary in number and intensity in every installation.

By means of the Frequency Scanning Function, both automatic and manual, an accurate scanning

of the present noises is possible and this permits to select the channels with the least noise.

Note:

in order to get a correct report of interferences, the scanning shall be carried out when all the

system is on, for even the light system can generate noises.

TYPE 2 :

INTERMODULATION INTERFERENCE.

This kind of interference is due to the intermodulation effects of the same radio-microphones.

They are spurious unwanted interferences generated by the mathematical sum and subtraction of

the frequencies of the radio-microphones in use.

The higher the number of utilized radio-microphones, the higher the number of intermodulation

effects.

For this reason, nowadays higher preparation and technique are required to the users, besides

more advanced technologies in the manufacturing of the dame devices.

By means of MOVING D system, the filtering type can be selected; this permits to choose whether

to prefer the number of channels that can be used or a higher immunity to interference.

The MOVING D system makes use of the radio digital transmission technology that is the most

advanced to reduce these interferences effectively and, therefore, this permits to use several radio-

microphones at the same time and in safe conditions.

3 WAY OF USE

This chapter shows some situations in which use can be made of the MOVING D system and

explains how to optimize its use.

In an ideal condition of use of the system, the transmitter always works in view of the receiver

(Fig.1).

Moving D – System

ENGLISH

Fig.2 shows a real event in which the Touring Rack antennae are covered by people and this

condition can compromise the correct working of the system.

A solution to solve above-said situation is shown in Fig.3: antennae can be positioned on common

microphone rods by means of the special Stand Adapter so as to raise their position and, then, to

improve the reception by overcoming the obstacle; finally, connect the antennae by means of the

special BNC cable to the Touring Rack antenna input.

The advent of the terrestrial digital signal and the always higher use of the Wireless technology

involves a huge increase of the radio signals (Fig.4).

This means that, besides the signal of our transmitter, the receiver will receive also the signals of

many other disturbing signals.

ENGLISH

To solve this problem, the use of RDA800W directive antennae is suggested.

As shown in Fig. 5, by means of directive antennae a selection of the existing signals is carried out,

that is only the area included in the antenna reception cone is concerned.

An alternative solution for the problems of Fig.4 can consist in moving the antennae closer to the

stage (or directly on the stage) and carry their signal to the Touring Rack by means of a BNC

cable.

Consider that, with this kind of operation, that is making use of a long cable to connect the

antennae to the receiver, a strong attenuation will be generated.

In order to reduce this problem, we suggest to make use of AA800W, that have the purpose of

amplifying the signal received from the antenna, so as to permit it to cover a longer section of

cable.

Note: AA800W shall be inserted immediately on the antenna output; moreover, the use of several

amplifiers in cascade connection is not to recommend, for this operation can compromise the

working of the whole system.

Note: In case the presence of noises can make the use of the system difficult on any frequency, a

reduction of the area covered by the receiver is got but, as indicated above, the antennae can be

positioned closer to the transmitter and, in contrast to the analog systems, no interference noise

will occur.

In case the transmitter signal is lost, the audio will be switched immediately to Mute; as soon as the

signal is available again correctly, the system switches back from Mute; this fact avoids the usual

background noise that can be heard when making use of analog systems.

Moving D – System

ENGLISH

Note: The use of AA 800W is useful also when the transmitter is very far from the receiver and

there is no way to move the antennae closer (Fig.8), in this particular situation the use of directional

antennae and amplifier can help the reception of the transmitter signal, provided that the signal

remains in a limited area.

4 TRANSMITTER AT VARIOUS DISTANCES

During the events of any kind, the transmitters will be never at the same distance from the Touring

Rack, see Fig. 9; in these situations, it can happen that the signal of the closer transmitters is so

strong as to prevent the receiver from receiving the weaker signals of the farther transmitters.

ENGLISH

To solve this situation, we suggest to make use of the UPA800 signal attenuator on the antenna

output cable (Fig.10 and 11).

This operation involves an attenuation of all the received signal but it also avoid that receivers are

darkened by closer transmitters, still managed to successfully receive a weak signal .

Page is loading ...

dBTechnologies MOVING D Owner's manual

Brand: dBTechnologies

Model: MOVING D

Category: Television antennas

Type: Owner's manual

dBTechnologies MOVING D

Some of the key features of the dBTechnologies MOVING D include:

True digital transmission: The MOVING D uses a true digital transmission system to provide superior sound quality and reliability. This system is immune to the interference that can plague analog wireless systems, ensuring that your signal will always be clear and consistent.

Download PDF

report