RF Largo de la Fibra 1550nm Transmisor de CATV Analógico ATSC, QAM 45-1000Mhz

Descripción

1550nm Directa Modulada CATV Sobre Fibra óptica del Transmisor RF con AGC 2-16mW

F-RF-1550-TX-2mW 1550nm +2dBm de salida de RF del Transmisor
F-RF-1550-TX-4mW 1550nm +4dBm de salida de RF del Transmisor
F-RF-1550-TX-8mW 1550nm +8dBm de salida de RF del Transmisor
F-RF-1550-TX-16mW 1550nm +14dBm de salida de RF del Transmisor

1550nm - 2-16mW de fibra óptica, transmisor de Televisión de RF (Radio Frecuencia) de 45-870 MHz. Opera en 1550 C-Banda de longitud de onda para la compatibilidad con EDFA sistemas. Convierte directamente cualquier entrante se?al de RF dentro de esta banda óptica de RF. Transporta todos los canales y programas a través de una fibra. Puede ser utilizado para punto a punto, o combinado con PLC acopladores de fibra óptica y los divisores de punto a multipunto aplicaciones. Salidas estándar de la Industria RFoG (RF sobre el Vidrio) se?ales de que puede ser aceptada por la mayoría de la fibra óptica receptores de RF de otros fabricantes. Fácil de leer LCD del panel frontal proporciona información y datos de alarma, y simplifica la configuración. Este sistema cuenta con un muy lineal láser DFB con ajuste automático de circuitos con Control Automático de Ganancia. Para mayor fiabilidad, una segunda fuente de Alimentación interna de la Unidad está disponible como una opción.

El transmisor se puede utilizar con cualquier o Thor Fibra óptica receptores de RF

F-RF-RX-RM CATV RF para Montaje en Rack Receptor de Alta Potencia	F-RF-RX-MN CATV RF Mini receptor óptico	F-Mininode CATV Mininode -Receptor de RF y de la ruta de retorno de RF del transmisor

Caracteristicas

? 2-16 mW de Potencia Óptica de Salida de un C-Banda láser compatible con amplificadores EDFA
? Puede ser ópticamente amplifed a altos niveles de potencia del ventilador tipo de distribución
? Transporta toda la 45-870 MHz de la banda, incluso, con pleno canal de linups
? Crear de alta seguridad "que se rompa la Fibra" para eliminar el cable coaxial de la se?al de la ruta de retorno
? Control automático de Ganancia (AGC), que gestiona nivel de RF con necesario realizar ningún ajuste
? Compatible con todos Thor RFoG CATV serie de sistemas de receptor óptico

NOTA IMPORTANTE*** (es muy importante a la interfaz de nuestra unidad con SC/APC - Ángulo de Pulido del Conector para evitar los reflejos de la luz.

Si la fibra se termina con el SC, ST, FC /PC conector plano, es necesario utilizar una óptica puente de PC tipo SC/APC para la correcta conversión.

Dibujos

Selección de modelo

F-RF-1550-TX-2mW 1550nm +2dBm de salida de RF del Transmisor
F-RF-1550-TX-4mW 1550nm +4dBm de salida de RF del Transmisor
F-RF-1550-TX-8mW 1550nm +8dBm de salida de RF del Transmisor
F-RF-1550-TX-16mW 1550nm +14dBm de salida de RF del Transmisor

Especificación

*Todas las Especificaciones Sujetas a Cambio Sin previo Aviso
De entrada	1x Tipo de conector F - 75 Ohm
Longitud De Onda Óptica	1550nm
Ancho De Línea:	< 1 MHz FWHM
Relación De Extinción	>20 dB XP
Equivalente De Ruido De Intensidad	< -160 dB/Hz
Potencia De Salida	F-RF-1550-TX-2mW 1550nm +2dBm de salida de RF del Transmisor F-RF-1550-TX-4mW 1550nm +4dBm de salida de RF del Transmisor F-RF-1550-TX-8mW 1550nm +8dBm de salida de RF del Transmisor F-RF-1550-TX-16mW 1550nm +14dBm de salida de RF del Transmisor
La Pérdida De Retorno	>55 dB
Conector Óptico	SC/APC - Ángulo de Pulido NOTA IMPORTANTE* (es muy importante a la interfaz de nuestra unidad con SC/APC - Ángulo de Pulido del Conector para evitar los reflejos de la luz. Si la fibra se termina con el SC, ST, FC /PC conector plano, es necesario utilizar una óptica puente de PC tipo SC/APC para la correcta conversión.**
El Nivel de Potencia de RF	11 a 29 de dBmV AGC Administrado
Planitud	<? 0.75 45 - 862 MHz
SBC Frenar	>17 dBm
CNR	>50 dB @ 10 km la longitud de la fibra
CTB	< -63 dB
Las OSC	< -57 dB
Dimensiones	19 x 10 x 1.75 pulgadas
Peso	2.5 kg
Temperatura De Funcionamiento	0 - 45 ?

Question and Answers

Question:
I'm ISP Provider using fiber optic, I'm wanting to implement CATV. this device: "1550nm RF Over Fiber Tx 45-870 MHz 2 -16 mW" How many channels does it tune? Example, will I have to have one such device per channel? How much? How do I buy? I

Answer:
This is an RF over Fiber device, to which you can put a coaxial cable into the unit with all programs between 45-870Mhz; this unit will convert the RF signal to Fiber, and then on the receiver side, will convert all the programs from fiber back to Coaxial cable. You will also need a fiber optic receiver as well: https://thorbroadcast.com/product/rf-catv-mini-optical-receiver.html https://thorbroadcast.com/product/catv-rf-fiber-receiver-high-rf-power-rack-8230.html This product does not "tune" channels, this is a device to send CATV over fiber optic cable. Here are some questions from our engineer: CTAV Transmitter /Receiver it will take and convert all you CATV RF Analog or Digital channels from 45-1000mhz. What is fiber optic distance? Do you have single mode fiber? Is it point to point or point to the multipoint application? do you want to use it with the optical splitter?

Question:
We are installing a PON fiber network for a community of approximately 400 homes. They will own and operate this network in-house as a CoOp. They are in a rural area that is difficult to receive Digital Broadcast Television and at my suggestion would like to distribute the RF signal from their large antenna tower throughout the community over the fiber network for their resident's use. This aspect is new to me, although the concept and hardware seem straightforward from the literature I've read. The 1550nm wavelength will be free to use for this distribution. Can you provide any RFOG theory, standards of installation, types of compatible receiving devices, or other relevant information for your products to assist in planning this deployment? Specifically, I am inquiring about the 1550nm Direct Modulated CATV over Fiber RF transmitter with AGC 2-16mW product and if this is a good choice for this project. If possible, they would like to be able to add a couple of of community access channels to the transmission as well but that is a perk, not a requirement as they can stream those over IP as an alternative.

Answer:
We would be happy to assist you with the system design, to deliver CATV RF over 1550nm wavelength on the existing PON network. In order to advise and design the system, we would need to know the topology on you PON and distances between the headend, hubs and the houses. The 1550nm optical wavelength is a wavelength which can be amplified, this is why it is usually used for CATV RFOF distribution, the signal can split, but each splitter has different optical loss, The RF optical receivers have specific optical input window range, this is why all-optical powers need to be calculated Do you have some drawings ( even hand drawing)I will give you a call to discuss it 800-521-8467 ext 2

Question:
Thanks for the reply. We are still in the planning and wanted to factor the tv into the design. Our current plan is for GPON circuits with 1/16 PLC split within 1/4 mile of the final destination. Distance from the headend to PLC splitter(s) will range from 1 mile to 3 miles depending on area served. We will have adequate fiber to provide a redundant or second channel per drop if needed but would prefer to incorporate within the single fiber and reserve the remaining for future population or technology growth. I am curious about the versatility or any advanced features such as on-demand capabilities or the ability to remove access from individual users within the split group to different channel packages or the service entirely. They would like to be able to contract with a wholesale programming provider or lease access to an established CATV provider in the future. The initial goals are to provide free access to basic OTA broadcast channels for every residence that is connected and being in subscription options later. We have roughly 20 miles of fiber to plan and install and have a timeline of 12-24 months depending on interest. Thanks again for any time and information regarding this project.

Answer:
So the fiber transmitter/receiver works as a coax extender, it carries all the channels you will inject on the input. You can send Clear RF CATV QAM, and consumers would be able to decode using TV tuners, for all other services you would need to implement scrambled channels and STB's for each user, but this is is totally external than fiber optic transport. The fiber optic link will carry clear or scrambled channels the same way as it would be on the copper coax. We can offer optical transport equipment only, TX , EDFA, and receivers. You could always start from clear qam then add scrambled channels in the future on the different frequencies Please let me know if this is clear

Question:

I am unable to locate the exact device I need in your site thorbroadcast(dot)com so maybe you can help me.

The specifications are as follows:

Input: one 45-870 MHz band. I am going to transport a CATV feed. 2mW (3dBm) optical output power is fine for me.

Output: I am going to transport this feed over a DWDM infrastructure. I need to use one of the ITU Grid available frequencies. So I need the output to be for example Channel 47 - 1539.77nm. The device should be able to modulate the signal over this exact frequency and not interfere with the surrounding channels as they are active and used by others.

Can you offer me this kind of solution? If you can, please provide more specifications for the device or you can send me directly a datasheet.

On the other hand, I am going to need to detect and regenerate the CATV RF signal. So can you point me to a device that can demodulate a DWDM frequency and regenerate the original RF signal.

Answer:

Thank you for the inquiry into our products, yes DWDM is a special order device for us.

This is a link to our standard 1550nm (CWDM) unit,

We can upgrade the laser to any DWDM for your customization needs.
That custom Part Number is F-RF-TX-2Mw-ITU47 (DWDM RF CATV Transmitter - DWDM ITU Ch 47 -1539.77)

For the RX you can use our standard CATV optical receiver.