Gain

Ejemplo: Canal 48 de UHF

 

 

 

 

 

 

 

 

 

 

 

+

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ZO

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

SUM

 

 

 

 

 

 

 

 

 

 

80

40

20

10

8

4

2

1

 

 

 

 

 

 

 

 

 

Gain

Ejemplo: Canal 117 de TV por Cable

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

1

2

3

4

5

6

7

8

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

ZO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

SUM

 

 

 

 

 

 

 

 

 

80

40

20

10

8

4

2

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

Gain

Ejemplo: Canal 120 de TV por Cable

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ZO

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

SUM

 

 

 

 

 

 

 

 

 

 

80

40

20

10

8

4

2

1

Ilustración 2

Ilustración 3

 

 

 

 

 

 

 

DIAGNÓSTICO DE ANORMALIDADES

No hay imagen...

Verifique que la fuente de suministro de video esté encendida y produciendo una señal de video. Confirme que el televisor y el modulador estén sintonizados al mismo canal, también revise todas las conexiones tipo F y asegúrese que no hay conductores centrales doblados o rotos. El modulador transmite en UHF para los canales 14 – 69, y por TV por cable para los canales 70 – 125. Asegúrese que el televisor esté programado en ANTENA o UHF si el canal modulado está entre el 14 y 69, y CATV (TV por cable) si el canal modulado está entre el 70 y 125. Para entradas moduladas, no utilice los canales 95-99. Para mayor información en como programar su televisor a UHF o CATV, lea las instrucciones de su televisor.

No hay imagen en la caja de TV por cable…

Asegúrese que el modulador esté programado a un canal entre el 70 y 94 ó entre el 100 y 125. Algunas cajas de TV por cable mueven o bloquean señales moduladas. Busque la señal modulada en varios canales alrededor de los canales seleccionados. Si la señal está bloqueada, debe conectarse directamente al televisor y sintonícelo entre el canal 3 y el canal modulado.

Interferencia Herringbone o líneas diagonales en el canal modulado…

Es posible seleccionar un canal que no está completamente disponible. Estaciones UHF lejanas no pueden ser sintonizadas pero causan interferencia si intenta utilizar la misma frecuencia. El canal que seleccione debe ser un canal disponible localizado entre dos canales también disponibles, para reducir las posibilidades de encontrar interferencia. En algunos casos, las compañías de TV por cable poseen señales adicionales en canales aparentemente disponibles. Pruebe programar otro canal. Puede necesitar un filtro para combatir la interferencia.

Interferencia Herringbone en varios canales (desaparecen al desconectar el modulador)…

Puede ser que la poderosa salida del Modulador Leviton esté interfiriendo con su amplificador de radio frecuencia (RF). Reduzca la salida RF, bajando la ganancia en el modulador (para mayor información, lea nuevamente la página 9).

Con las señales combinadas, la recepción en el canal modulado es débil o nublosa…

Para obtener la mejor imagen posible, aumente la salida RF del modulador (para mas detalles, vea la página 9). Considere añadir un amplificador, atenuador, o compensador para aumentar y balancear la señal.

10DI-030-48213-20B

 

 

 

 

 

 

 

 

 

Gain

 

Example: UHF Channel

48

 

 

 

 

 

 

 

 

 

 

+

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ZO

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

SUM

 

 

 

 

 

 

 

 

 

 

80

40

20

10

8

4

2

1

 

 

 

 

 

 

 

 

 

Gain

 

Example: CABLE Channel 117

 

ON

1

2

3

4

5

6

7

8

+

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ZO

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

SUM

 

 

 

 

 

 

 

 

 

80

40

20

10

8

4

2

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

Gain

 

Example: CABLE Channel 120

 

 

 

 

 

 

 

 

 

 

+

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ZO

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

SUM

 

 

 

 

 

 

 

 

 

 

80

40

20

10

8

4

2

1

Figure 2

Figure 3

 

 

 

 

 

 

 

 

TROUBLESHOOTING:

No picture...

Verify that the video source is on and is producing a video signal. Check that the TV and the modulator are tuned to the same channel, also check all F-connections for bent or broken center conductors. The modulator broadcasts on UHF for channels 14-69, and CATV for channels 70-125. Make sure the TV is set to ANTENNA, or UHF if the modulated channel is 14-69, and CATV if modulated channel is 70-125. Do not use channels 95-99 for modulated input. See your TV instructions for more information about UHF and CATV settings.

No picture through cable box...

Be sure that the modulator is programmed for a channel from 70-94 or 100-125. Some cable boxes will move or block modulated signals. Check for the modulator signal several channels above and below the selected channel. If the signal is blocked, you must bypass the box and switch the TV between channel 3 and the modulator channel.

Herringbone interference or diagonal lines on modulated channel...

You may have chosen a channel number that is not completely vacant. Distant UHF stations may be un- watchable, but still cause interference if you try to create a new channel at the same frequency. The channel you choose should be an unused channel between two unused channels, to minimize chances of interference. Sometimes cable companies have extra signals where there appear to be none. Try moving the modulator channel to another number. You may have to add a Notch Filter to remove cable company noise.

Herringbone interference on many channels (disappears when you remove the Modulator)...

The high output of the Leviton Modulator may be overdriving your RF amplifier. Reduce the RF output by lowering the gain on the modulator (see page 2 for more information).

Weak or “snowy” reception on modulated channel, once signals are combined...

Increase RF output of modulator for best picture (see page 2 for more information). Consider adding an amplifier, attenuator or tilt compensator to boost and balance signal.

FCC Part 15 Compliance

Installation Requirements

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Any change or modification to this device without the permission of NetMedia and Leviton Mfg. may void the user’s authority to operate this equipment.

The FCC classifies this product under Part 15 of its rules as a “television interface device”.

Systems designed using television interface devices have the following legal requirements:

1.The modulated channel signal strength may not exceed 15.56dBmV at any television. Federal Regulation 47CFR15.115(b)(l)(i).

2.If an antenna is used in the system, the modulated channel signal strength may not exceed -51dBmV at the antenna input port. Federal Regulation 47CFR15.115(c)(4).

The system you design must comply with these regulations. As the installer, you are responsible. The accompanying diagram illustrates an installation that ensures compliance.

DI-030-48213-20B 3

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Leviton 48213-VMA manual Ilustración, FCC Part 15 Compliance, Diagnóstico DE Anormalidades, 10 DI-030-48213-20B
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48213-VMA specifications

The Leviton 48213-VMA is a cutting-edge device that epitomizes innovation in the realm of electrical wiring and connectivity. As part of Leviton’s extensive range of products, this device is designed to meet the demands of both residential and commercial applications while ensuring reliability and ease of use.

One of the main features of the Leviton 48213-VMA is its superior design, which includes a robust and durable construction. This ensures longevity and resistance to wear and tear, making it suitable for a variety of environments. The device is engineered to support both high voltage and low voltage applications, making it versatile for numerous electrical setups.

Incorporating advanced technologies, the Leviton 48213-VMA boasts smart wiring capabilities. This feature allows users to connect their devices seamlessly for efficient communication and energy management. The smart technology is compatible with various smart home systems, enabling users to integrate the device into their existing setups for enhanced control and automation.

The connectivity options offered by the 48213-VMA are extensive. It supports a variety of protocols, ensuring that it can encompass a wide range of devices and applications. Users can easily connect their gadgets and appliances, maximizing the functionality of their electrical systems.

Additionally, the Leviton 48213-VMA is backed by Leviton's commitment to safety and compliance. It meets industry standards and regulations, providing peace of mind for users concerned about electrical safety. The device is also designed to minimize energy consumption, aligning with today’s sustainability goals.

The user-friendly interface is another highlight of the Leviton 48213-VMA. Installation and operation are straightforward, making it accessible even for those with minimal technical expertise. This ease of use ensures that the device can be effectively utilized in a variety of settings without the need for extensive training.

Overall, the Leviton 48213-VMA is a remarkable solution for anyone looking to enhance their electrical infrastructure. With its durable construction, smart technology integration, and user-friendly design, it stands out as a top choice for modern electrical applications. Whether for home or commercial use, this device exemplifies what it means to have reliable and advanced electrical solutions.
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