Name: L-BAND over Fiber Tx+Rx Basic 1 Ch Kit
Brand: Thorbroadcast
Price: 1495 USD
Availability: InStock

Description

Thor Fiber Satellite L-Band RF Over Fiber Transmitter and Receiver kit

Model # F-Lband-Tx/Rx

The L-Band fiber optic Transmitter/Receiver pair are used for transporting RF Satellite signals in the L Band over fiber from the antenna to the satellite receiver. L-band RF signals have a very limited range over coaxial cable, typically no more than a few hundred feet. By transporting the L-Band RF signal over an optical fiber this range can be extended to over 50 miles. Fiber optic cables are much smaller and easier to work with than traditional copper coax. Additionally our units provides optional 13/18V LNB power as well as Automatic Gain Control (AGC) to manage RF input level. Fiber optic transport of satellite signals is useful in many applications, such as transportation of signals from a remote satellite farm to a broadcaster's headend, uplink and downlink applications, and DBS services. This fiber satellite (SAT) extender can even transport broadband CATV RF over fiber optic cable. Thor Offers CWDM multiplexing solutions for transportation of up to 8 distinct L-Band signals over a single fiber, as well as multicasting solutions over several different fibers via optical coupling. Custom solutions are available, contact Thor today for help with your specific L Band DBS satellite RF Dish LNB over fiber needs.

Features

Low cost kit to transport L-Band frequencies from LNB's over fiber
Can provide LNB power at 13/18 VDC over coax
Can provide 22 kHz control tone for LNB polarity shifting
Can be used to remote satellite antennas up to 10 miles away
Compatible with PLC optical splitters, point to multi-point
DTH over fiber
Grate solution for VSAT network
The transmitter receiver Kit comes with 110-220V AC to DC power supply

IMPORTANT NOTE*** (it is very important to interface our unit with SC/APC - Angle Polished Connector to avoid any light reflections.

If your fiber is terminated with the SC, ST, FC /PC flat connector, you need to use an optical jumper from PC type to SC/APC for proper conversion.

Drawings

Video

satellite antenna signal over fiber extender, DBS L BAND over Fiber Tx+Rx Basic 1 Ch Kit

SATCOM DBS Fiber Optic Transmitter Receiver kit, RFoF, converts satellite RF signal form LNB coax to fiber optic signal and from fiber to back to Sattelite RF. it works as a Coax but over the fiber, single-mode fiber is needed with SC/APC angle polished connectors. Coax cable has its own distance limitation, by using this converter you can send modulated RF 54-3000Mhz over fiber up to 20KM. This unit could be also used for ATSC over fiber or CAble TV RF over fiber because of the wide RF range supported this is the link:: https://thorbroadcast.com/product/l-band-over-fiber-tx-rx-basic-1-ch-kit.html in spanish El kit de receptor de transmisor de fibra óptica SATCOM DBS, RFoF, convierte la señal de RF satelital de coaxial LNB a señal de fibra óptica y de fibra a RF de satélite. funciona como un cable coaxial, pero a través de la fibra, se necesita fibra monomodo con conectores pulidos en ángulo SC / APC. El cable coaxial tiene su propia limitación de distancia, al usar este convertidor puede enviar RF modulada 54-3000Mhz sobre fibra de hasta 20KM. Esta unidad también podría usarse para ATSC sobre fibra o TV por cable RF sobre fibra debido al amplio rango de RF admitido Este es el enlace:: https://thorbroadcast.com/es/producto/banda-l-largo-de-la-fibra-tx-rx-basica-1-ch-8230.html

Model Selection

Standard Model Numbers

Model Number	Description ( NOTE : All units ,TX's and RX's comes with the AC power supplies )
F-LBAND-Tx	L-BAND Singlemode Fiber Transmitter for 10km
F-LBAND-Rx	L-BAND Singlemode Fiber Reciever for 10km
F-LBAND-Tx-40	L-BAND Singlemode Fiber Transmitter for 40km
F-LBAND-Rx-40	L-BAND Singlemode Fiber Reciever for 40km
F-LBAND-Tx-80	L-BAND Singlemode Fiber Transmitter for 80km
F-LBAND-Rx-80	L-BAND Singlemode Fiber Reciever for 80km
F-LBAND-Tx-120	L-BAND Singlemode Fiber Transmitter for 120km
F-LBAND-Rx-120	L-BAND Singlemode Fiber Reciever for 120km
F-LBAND-Tx-XX-RM XX- Distance in Km 10.40,80,120 RM-Rack mountable	L-BAND Singlemode Fiber Transmitter for 10km
F-LBAND-Rx-XX-RM XX- Distance in Km 10.40,80,120 RM-Rack mountable	L-BAND Singlemode Fiber Reciever for 10km

Specification

*All Specifiactions Subject to Change Without Notice
Transmitter Properties
Wavelength	1310 nm (standard) 1550 nm (optional) FP/DFB
Output Power	+2.0 dBm +/- 2 dB
Frequency Response Range	45 - 2800 MHz
RF Input Level	55 - 78 dBµV
LNB Power (optional)	13 or 18 VDC /650mA Max 22KHz
RF Connector	F-Connector or by request
RF Return Loss	13 dB
RF Input Impedance	75 Ohm
CNR	40 dB
IMD	40 dB
Reciever Properties
Wavelength	1290 - 1600 nm
Optical input power range	-13 - 1 dBm (sensitivity -13 dBm)
Frequency Range	45 - 2800 MHz
Output RF Response Levels
Optical Input = 0 dB	RF Output = 88 dBuV
Optical Input = -3 dB	RF Output = 82 dBuV
Optical Input = -6 dB	RF Output = 74 dBuV
Optical Input = -9 dB	RF Output = 68 dBuV
Optical Input = -12 dB	RF Output = 63 dBuV
General Parameters
Power Supply Info	12VDC, 1.5A AC to DC power supply - Incuded ( F-Type Female)
Tempurature Range	(-45) - 150 F
RF Connectors	F - Connector
Optical Connectors	SC/APC IMPORTANT NOTE* (it is very important to interface our unit with SC/APC - Angle Polished Connector to avoid any light reflections. If your fiber is terminated with the SC, ST, FC /PC flat connector, you need to use an optical jumper from PC type to SC/APC for proper conversion.**
Dimensions	118 mm x 210 mm x 40 mm
Weight	0.25 kg

Question and Answers

Question:
Does this work with dish network LNB?

Answer:
Generally yes, but there is several different options. How many LNB's does your dish has? Please give us call directly we will explain as different providers have different hardware options; we just need to match the hardware that you have to the hardware we offer to create a seamless transition of your Dish service

Question:
We are expanding our broadcast studio. We have 2 studios that are connected to our machine room via fiber and are looking to invest in Shure's new Axient system to leverage it's real-time remote frequency coordination capabilities. To do this Shure suggested could use RF-over-Fiber and we are looking at your product line. Its working range will be 470 MHz-952 MHz and the antenna distribution system uses a 50-ohm connection. Would the Thor F-LBAND-Tx/Rx Satellite L-Band RF Over Fiber Transmitter and Receiver kit 1310nm work well for this? I did notice that it is spec'ed to 75 ohms...? Do you have anything at 50?

Answer:
Yes, you can use our L-band over fiber TX/RX, it should work even if you have a 50ohm interface. If you must have 50ohm, we have GPS over fiber TX RX available with 50ohm TNT RF connector, it will cover 470 MHz-952 MHz https://thorbroadcast.com/product/gps-over-fiber-reference-timing-fiber-optic-waterproof-solution.html

Question:
I have a year-round trailer campsite where DirecTV was to have installed new service. The install-technician declared that our site situation made it impossible (for him) to setup service, even though our adjacent neighbor DID have DirecTV installed the previous year. I believe I can mount a dish near the top of our driveway that could be aimed with the required clear view. The installer said that 100ft was the maximum run distance he could make with RG-6 coaxial cable and that there was no way around that limit. I know that rf-over-fiber could easily reach the roughly 400-500ft required for my proposed remote-mounting of the dish. I have a DirecTV dish with a SWM LNB and a handheld electronic antenna pointing device that I plan to pre-install, then run rf-over-cable to my trailer, before calling DirecTV back to establish service. There will be just one TV at the trailer. Having said all that, is there an affordable way for me to deal with this long run? And, is the kit Model # F-Lband-Tx/Rx what is needed for this?

Answer:
If the dish you have has a built-in SWM; then there is nothing we can do to help. We have transmitter and receiver kits that convert the LNB's to fiber; however, these units must go in between the dish and the SWM , because there is bi-directional communication between STB's coxes and SWM You can go purchase your own dish without the built-in SWM; depending on the model you choose, our LB41 systems and the LB61 Systems would work https://thorbroadcast.com/product/6-ch-l-band-over-single-fiber-extender-54-3000mhz-cwdm.html

Question:

One question I'd have for the engineers with fiber optic would I be able to mix a satellite signal with an over-the-air and combine altogether and use the same wire?

Answer:

Yes this unit F-LBAND-TX/RX supports 50-2800Mhz RF input.

The ATSC spectrum RF is between 50-800 MHZ, the satellite L'Band is between 850-2100Mhz

Using this TX and RX you can send both signals.

You can simply combine the signal from the dish and from the residential antenna using smile 1x2 splitter/combiner

If there is short distance than Coax is a better and less expensive choice

It is great for sending signals from the Dish or ATSC or both for long-distance, let's say that some residence doesn't want to have a big dish next to the house, or skyscraper needs to send the signal to the master headend located in the basement.

Standard TX/RX supports up to 20Km of fiber.

Yes we can send you 200-300 feet of fiber with the TX/RX .

Please note this unit is able to extend1 LNB, some satellite services like Direct TV uses multiple LNB's , in this case we have different units 4 or 6 LNB over 1 fiber extender.

those units actually convert every LNB input on separate light wavelengths ( colors of light ) and internally passively combine them , receiver separate the light using filters and convert it back to the original Lband RF (it gets complex)

those are the links :

https://thorbroadcast.com/product/4-ch-l-band-over-single-fiber-extender-45-3000mhz-cwdm.html

https://thorbroadcast.com/product/6-ch-l-band-over-single-fiber-extender-54-3000mhz-cwdm.html

Question:

I have a customer looking for a device that would convert a signal from a coaxial TV cable into fiber and then back into coax later.

Do you know if this is possible, and if you have any items we might suggest?

Answer:

s the application just point to point? Is the CATV QAM or ATSC?

Does the customer have Single mode fiber in place with SC/APC connectors?

What is the approximate distance of the fiber? Or do you know the optical budget/loss?

We have an abundance of products for this kind of application.

https://thorbroadcast.com/products/cable-tv-catv-rf-45-900mhz

Transmitter and receivers are readily available and in stock, just need to a know a little bit more information so we can point you in the right direction.

Question:

will it work for Sirius XM s band over fiber

Answer:

Sirius satellites broadcast within the s-band frequencies from 2.3200–2.3325 Ghz , while XM radio uses adjacent frequencies 2.3325–2.3450 GHz.

So a few things here, realistically it should work then.

A Couple of options or things to consider is, does the XM antenna require power/voltage to the antenna?

Does the antenna require bidirectional communication?

The other options we have are

Trying the new set

https://thorbroadcast.com/product/l-band-over-fiber-tx-rx-basic-1-ch-kit.html

Again, updated specs and it could possibly work, even though its the same frequency range.

Another option is to go up a level and try these:

https://thorbroadcast.com/product/4ghz-fiber-optic-mini-transmiter-receiver.html

If you look in the description it's made for S BAND

It is used in many RF over fiber applications like communications, defense systems, satellite L-band, S-band, GPS, WiMAX, cellular 3G, 4G and LTE signals.

These articles goes over more stuff

https://electronics.howstuffworks.com/satellite-radio.htm#:~:text=XM%20Radio's%20ground%20station%20transmits,170%20channels%20of%20digital%20audio.

https://www.lifewire.com/what-is-a-satellite-radio-antenna-534489

Satellite radio: 2.31 to 2.36 GHz

Question:

I will appreciate if you can quote a solution for transport two L Band signals coming from one TVRO antenna to monitoring Room, no more than 500 m away.

On the other hand, please add a solution for transport signals from 9 antennas, two port each to monitoring room, away no more than 500 m, using optic multiplexing.
For both solutions please consider LNBs power supply.

Please let me know configuration as well as cost and delivery time.

Regards

Answer:

We have a few different options to choose from.

We have individual sets in compact format

https://thorbroadcast.com/product/l-band-over-fiber-tx-rx-basic-1-ch-kit.html

Depending on the voltage of those 2 Lbands you could possibly use this set:

https://thorbroadcast.com/product/2-satellite-lband-1-catv-qam-atsc-rf-8230.html

For the 9 Antenna's we have 6 Channel Mux units available

https://thorbroadcast.com/product/6-ch-l-band-over-single-fiber-extender-54-3000mhz-cwdm.html

Please let me know if you have any questions or would like a formal quote.

If you would like more information or would like to discuss you can reach us at 1800-521-8467 ext 2

Please note all of our LBAND equipment requires singlemode fiber and is terminated with SC/APC connectors.

Question:

I am looking for a rack mount fiber optic extender system for L-band satellite. I’m not seeing the exact products I need on your website and was wondering if they were available on order.

First thing. I would like to power the LNBs from the transmitters. None of your products mention that. Do your extenders provide LNB power?

Second. This is a new build and fiber optic bundles and strands have become very inexpensive these days. Multiplexing (CWDM or DWDM) does not make any sense for us. So I would like to extend each channel on individual strands of single mode fiber, no multiplexing. It makes for greater reliability and ease of troubleshooting if the signals are not all on the same fiber.

This is for an in-building distribution system with a distance of about 400 feet, so we do not need high power optics. We want to build individual channels.

Answer:

We have two kinds of systems of Lband, compact and rackmount. The rackmount systems all use CWDM and have either 4 or 6 LNB inputs.

The compact units are single units with one LNB.

All of these units can power the LNB from the transmitter.

Question:

I've got one of the GPS kits in the hands of some folks on the DBS side to outfit the remote unit in a small NEMA box with power adapter/surge protection.

I will forward this to that group too, since they're in direct contact with the RF team on the DBS/satellite side of Dish. I imagine they've been using something similar, but I'll share it anyway.

You speak of transport equipment... If you are aware of any other devices that you believe we should be considering, to save costs or benefit in other ways, we're all ears.

Answer:

Yes, absolutely, we know for a fact that many companies are using them in conjunction with Dish services in MDUs.

If you have some specific applications, please describe them, we have a wide product range, and we can manage most applications over Fiber, over IP network, RF or ASI.

There are some examples

QAM modulators :

1 HDMI IN - QAM CATV TV Out

https://thorbroadcast.com/product/petit-hdmi-rf-modulator-1.html

1-8 HDMI IN - QAM CATV TV Out

https://thorbroadcast.com/product/1-4-or-8-hdmi-digital-rf-encoder-modulator-8230.html/239

IP IN - QAM CATV TV Out

https://thorbroadcast.com/product/iptv-to-16-32-clear-channel-rf-qam-atsc-modulator.html/123

DVBS/s2 satellite RF decoders :

https://thorbroadcast.com/product/ird-satellite-or-atsc-decoder-to-sdi-ip-asi-8230.html/75

16 DVBS/s2 satellite RF to IP gateways : .

https://thorbroadcast.com/product/16-rf-tuners-to-iptv-ts-qam-output.html/118

Multi-channel IP HDMI or SDI encoders - up to 24ch

https://thorbroadcast.com/product/4-8-16-24-hdmi-iptv-streaming-8230.html/216

Please let me know if there is anything you would be potentially interested in any of these.

Question:

I purchased some of your SM Coax L-Band to Single Modem fiber equipment in the past but I have a site that I need to do the same thing but with Multi-Mode Fiber that uses an ST connector. I Couldn’t find an option on your website and wanted to see if you have an option that would allow me to send L-Band Satellite signal from an LNB via Fiber that was Multi-Mode with an ST Connector? If not do you have any option to perhaps send HDMI signal over Multi-Mode Fiber with an ST connector?

Answer:

That's correct, we do not offer it, because it's impossible to put RF on multimode fiber.

If you would like to use HDMI over Fiber for a very short distance on multimode, we do have a solution for that.

https://thorbroadcast.com/product/hdmi-fiber-extender-with-ir.html

Cost for the transmitter and receiver is $495.00 and does come with accessories like power supplies and Red Eye.

Let me know if that will work for you.

Question:

Please send me your equivalent to : evertz 2408LT (L-Band/Wideband Standalone Fiber Transmitter Series) With Power Supply 24x 7708LRA (L-Band/Wideband RF Fiber Receiver Series) +SC+3RU With fiber and Rear Plate 2x 7800FR (Frame) 1x XTREME 160 With 64 IN x 64 OUT Or other compatible router

Answer:

We do have a perfect L-band over fiber TX/RX solution in a few different form factors.

We can offer the following units:

1)

F-LBAND-TX/RX ( transmitter / receiver kit + power supply )

2)

We do have also 2ch or 4ch portable units :

F-SattGalaxy-TX/RX-3, F-SattGalaxy-TX/RX-5

https://thorbroadcast.com/product/2-satellite-lband-1-catv-qam-atsc-rf-8230.html

https://thorbroadcast.com/product/4-x-satellite-l-band-lnb-s-1-catv-qam-8230.html

3)

4 channel and 6 channel Rackmountable - over single fiber

F-LB41-CWDM-TxRx - 4ch

https://thorbroadcast.com/product/4-ch-l-band-satellite-over-single-fiber-extender-transmitter-and-8230.html

F-LB61-CWDM-TxRx - 6ch

https://thorbroadcast.com/product/6-ch-l-band-satellite-over-single-fiber-extender-transmitter-and-8230.html

Please review and let me know if any of that unit would work for you.

Question:

I could use some assistance making sure I get the correct parts for my application –Situation – DirecTV head-end in MDF, desired to be distributed across building (up to 1km distance) using existing single mode fiber. Existing fiber: Leviton e2XHD MTP-LC OST cassettes, berk-tek adventum OS/2.Existing coax: split using SWM MSPLIT8R1-03. Endpoints: 3. Is F-LBAND-TX/RX correct for this application? I’m extending downstream of the satellite, but the splitter is listed higher than the 1Ghz limit of the CATV applications.

Additionally, what is the correct fiber patch cable to go between your SC-APC connectors and the Leviton LC cassettes? I was reading your notes about FC/PC/APC, but I couldn’t find what the Leviton uses.

Answer:

I'd be happy to clarify how we can extend Direct TV signals using our Lband Fiber Optic extenders products.

Direct TV usually has four or more LNBs, which are connected directly via four or more coax cables into the SWM. The SWM has RF output/input and communicates with the STBs in both directions. Since fiber optic is strictly unidirectional, we can only extend the 4/6 LNBs' signal into the SWMs, not from SWIM's to set-top boxes. ( so we can not use F-LBAND-TX/RX from your splitter MSPLIT8R1-03 )

The easiest way to help you with your application would be to use the F-LB41-TX 4 L-band Transmitter (4 LNB fiber optic extender with a 1x4 Optical Splitter and three F-LB41-RX receivers. These receivers would be connected to three SWMs where you can run your 1x splitters and set-top boxes. Please check the link below for a drawing to visualize your application:

https://thorbroadcast.com/product/4-ch-l-band-satellite-over-single-fiber-extender-transmitter-and-8230.html

If your Direct TV has more than four LNBs, please consider the LB61.

https://thorbroadcast.com/products/l-band-satellite-rf-45-3000mhz

Our units requires single mode fiber and SC/APC connectors, if you have LC/PC than you will need to use LC/PC to SC/PC optical jumpers on each end of the fiber

Please let me know if this is clear.

Question:

I am a government project engineer for the Unites States Navy. I work for an organization within the DoD that provides communications solutions for various DoD and other Federal agencies. I have a project I am working on that requires a secure link between over the air satellite broadcast and a secure network for IPTV distribution. It appears that THOR makes hardware to facilitate this (RF over fiber) and on the website there are listings of various DoD agencies among the clientele for THOR products. I was inquiring to see if there is anyone who can assist me with determining the correct hardware for my application and in addition, providing any case examples of how this product is implemented at these other clients listed. My customer asked for examples of where this is implemented after I provided them the data sheets that were available for download on your website. Thank you in advance,

Answer:

Thank you for your inquiry regarding our RF over fiber solutions. We specialize in "Fiber Brake" RF to Fiber equipment and have extensive experience working with DoD, military, and government agencies.

We have several options available for your application.

The main question is what satellite service you are using and how many LNBs you need to convert to fiber. For example, DirecTV typically has 4 to 6 LNB dishes.

Please check the link below for more information on our L-band satellite RF to fiber extenders:

https://thorbroadcast.com/products/l-band-satellite-rf-45-3000mhz

Example: F-LB61-TX/RX

https://thorbroadcast.com/product/6-ch-l-band-satellite-over-single-fiber-extender-transmitter-and-8230.html

Question:

Hello, I'm interested in knowing more about the features of your F-LBAND-TX/RX product. What is the security barrier that's mentioned for the Fiber portion? I have a requirements to prove that devices on the same layer as the Coax portion are isolated from one another. The device is a receiver/decoder only, right?

Answer:

Thank you for reaching out. Yes, this is correct—the Fps over fiber devices work as a transmitter and receiver pair. The F-4GPS-TX-WE is an optical transmitter only, converting the RF GPS electrical signal into an optical output. The F-LBAND-TX/RX is a receiver only, which converts the optical signal back to the original electrical GPS RF signal. Therefore, the device functions as a GPS RF extender over fiber and, importantly, acts as a Physical Isolator. We refer to this as a "fiber break" because it creates an inability to send any signals back from the RX to the TX. The RX is not equipped with any laser; it is just an optical detector.

If you only need one GPS, here is the link to the F-1GPS-TX/RX, which will get the job done. Please note that we also have a very similar solution for Satellite Antenna L-band over fiber (F-LBAND-TX/RX) and for Cable TV RF with a fiber break. These devices are essentially rated for different RF frequency ranges.

If you only need one GPS, here is the link to the F-1GPS-TX/RX, which will do the job.

https://thorbroadcast.com/product/1-gps-fiber-transport-system.html

Please note that we also have very similar solutions for Satellite Antenna L-band over fiber

(F-LBAND-TX/RX)

https://thorbroadcast.com/product/l-band-over-fiber-tx-rx-basic-1-ch-kit.html

and

Cable TV RF cable (fiber break). They are essentially rated for different RF frequency ranges.

https://thorbroadcast.com/product/rf-fiber-break-optical-rf-coax-isolation-solution.html

In your application, which signal would you like to isolate: GPS, L-band, or CATV RF cable?

Question:

I need to replace a coax run in my building with fiber for LTE cellular frequencies. I was looking at your L-band over fiber Tx+Rx Basic 1 channel kit. The fiber run would be short, probably a max of 600ft.

https://thorbroadcast.com/product/l-band-over-fiber-tx-rx-basic-1-ch-kit.html#models

I would need one each of these models?

F-LBAND-TX

F-LBAND-RX

------------------------------------------------------------------------------------

Yes, that would work. Those are sold in sets, the F-Lband-TxRx is $1495.00

However those are unidirectional transmitter and receiver sets, for cellular you would need two sets and an RF circulator.

Hopefully that makes sense; but we have had clients use that as a solution for Cellular over Fiber and works great, so long as your RF spectrum stays at or below their threshold.

---------------------------------------------------------------------------------------------------

Thank you for your reply. I wasn’t sure if I would need one set or two. We have an alarm communicator that connects to an antenna on the roof via a single run of coax. The plan is to replace the coax w/ fiber. Can you put 50ohm connectors on these units or just the 75Ohm F connector?

------------------------------------------------------------------------------------------------------

These units come standard with 75-ohm F-type connectors, which is the standard for L-band.
If your application requires 50-ohm, then instead of the L-band version you can purchase our GPS-over-fiber units.

https://thorbroadcast.com/product/1-gps-fiber-transport-system.html

They’re essentially the same unit but with 50-ohm N-type RF connectors, designed to pass the GPS signal from the antennas.

Let me know which option you prefer.

------------------------------------------------------------------------------------------

I want to make sure I understand how to use this with two sets of the Tx and Rx units. Does this diagram look like I’m on the right path or way off?

Answer:

LTE cellular over fiber solution :

However those are unidirectional transmitter and receiver sets, for cellular you would need two sets and an RF circulator.

Hopefully that makes sense; but we have had clients use that as a solution for Cellular over Fiber and works great, so long as your RF spectrum stays at or below their threshold.

Question:

In the frame of a satellite ground station I am working on, I would need some technical information on the link performance of a 300m L-Band fibre link for the connection between L-band modems and a staellite Tx/Rx satellite ground station. Mainly I would need the end-to-end performance w.r.t to the following parameters - Max. allowed operational RF input Level - P1dB RF output level -Max. RF end-to-end gain - Overall link NF Thanks for providing a feedback on which equipment from Thor Broadcast would be best fitted for such a link.

Answer:

For the single channel Lband compact kits, the RF input level: 55 - 78 dBµV

Output RF Response Levels
Optical Input = 0 dB RF Output = 88 dBuV
Optical Input = -3 dB RF Output = 82 dBuV
Optical Input = -6 dB RF Output = 74 dBuV
Optical Input = -9 dB RF Output = 68 dBuV
Optical Input = -12 dB RF Output = 63 dBuV

Optical input power range -13 - 1 dBm (sensitivity -13 dBm)

Can provide LNB power at 13/18 VDC over coax
Can provide 22 kHz control tone for LNB polarity shifting

Those compact sets are easily compatible with ranges up to 10km, generally much further.

300m is a very short distance, they will be plug and play units.

Please make sure you are using Singlemode fiber and have SC/APC terminations. We do offer jumpers in various sizes and terminations if needed.

Question:

1) I'm interested in what a current Direct TV setup would require - utilizing a Model # F-Lband-Tx/Rx device to isolate (due to technical requirements) then split out to 8 Direct TV Tuners (STB). Is there a need for a SWM-30, as well as 8xSplitter behind the receive side of the fiber isolation?

2)

Currently, im uncertain of the handoff expected from Direct TV in the building requiring setup. Its supporting a customer on a floor, in a building that has DirectTV provided to other tenants. Having purchased a Model # F-Lband-Tx/Rx set, hopes for distro was a single line/circuit needing fiber isolation. But you just confirmed the need for bi directional signal from the tuner/STB back to the SWM in design.

I believe it was the 4th drawing set on the Model # F-Lband-Tx/Rx that led me to believe only a 8x splitter would be needed.

Answer:

1) - To confirm the setup for your DirecTV system and which Lband RFoF which would fit your system; do you know how many LNB's your Dish has? And does it have a SWM built into the dish?

If you aren't sure, please send us the model numbers of which Dish you have; they vary between 1 to 5 LNB's generally.

For fiber topologies with dishes, the fiber transmitter and receiver go in between the dish and the SWM; yes you'll need a SWM to distribute that signal last mile on coax.
It's required because you have bidirectional communication between the STB's and the SWM.

2)

The drawing shows the basic TX/RX setup. For DirecTV, the SWM is crucial for the return path communication.

If you are using our F-Lband-Tx/Rx, you will need the SWM after the receiver, and then split the coax output from the SWM to your 8 STBs.

Let me know if that clears things up. However the most important aspect is still finding out what kind of dish it has; also if there are other units utilizing the same dish it might alter your design.

There are countless designs and styles of dishes from all the Satellite providers; so the number of LNB's is crucial; if the Dish has a built in SWM then you can't use our fiber gear.

Also single mode fiber is a necessity; multimode won't work; and SC/APC connectors are industry standard for RFoF products.

For most installs, a 4ch or 6ch L-Band over fiber setup is usually the cleanest way to cover the satellite bands they actually need

Thor Broadcast

12:47?PM (0 minutes ago)

to ROMAD

For most installs, a 4ch or 6ch L-Band over fiber setup is usually the cleanest way to cover the satellite bands they actually need

https://thorbroadcast.com/product/4-ch-l-band-satellite-over-single-fiber-extender-transmitter-and-8230.html

Question:

Hi I need a recommended make and model of a fiber?optic to coaxial RF converter system suitable for use with an Inmarsat IsatDock Marine docking station and the Inmarsat ISD710 maritime antenna. The system must meet the following requirements: The coaxial input carries both TX and RX (duplex L?Band) signals. The converter at the antenna end must separate and convert TX/RX from coaxial to fiber. A corresponding converter at the docking?station end must convert the fiber signals back to coaxial TX/RX. The solution must fully support Inmarsat L?Band frequencies and operate reliably in a marine environment. Please recommend the most appropriate and reliable converter model for this application.

Answer:

For your application with the Inmarsat system, you'll need a setup that's similar to a cell phone antenna.

It supports duplex L-Band signals and is required to be bidirectional: here is our solution---

For the bi-directional RF over fiber, you could possibly use 2 sets of F-L-band-TxRx over 2 singlemode fibers (one forward and one reverse).

F-L-band-TxRx
The frequency range is 45-2600mhz
Again you would need to use TWO sets TX/RX sets to make it bi-directional and use 2 single mode fibers (has to be singlemode and use SC/APC connectors.

This is the link:
https://thorbroadcast.com/product/l-band-over-fiber-tx-rx-basic-1-ch-kit.html

You would also need an RF circulator, but that would be a good solution for this kind of application.

Not exactly a common application; and we don't have specific products for this type of Antenna; but what we proposed above should work, you can send me the specifications of that ANTENNA so I can double check, but my assumption is everything will be in the range required; you just need to make sure you have singlemode fiber.
Please let me know if that would work for you.

Documents

FlLBAND-TX/RX DataSheet

SpecSheet

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