tv crews using satellites for links

[burts]

heard Outside Broadcast near Exeter devon UK 457.3050 nfm when a rugby match was on,but cant find much on OB links as to what frequencys ect any help would be good thanks (world link was a frase used often )

from burts

 

[CalebATC]

The sat links are on the high GHz's, usualy around 10-24 GHz.

 

[ff-medic]

And unless you are between the two satellites - OR close to teh ground satellite - you mos tlikely will not hear anything - keep in mind , it is a satellite signal , not something you go to a radio / scanner store and pick up

FF - Medic !!!

 

[CalebATC]

And unless you are between the two satellites - OR close to teh ground satellite - you mos tlikely will not hear anything - keep in mind , it is a satellite signal , not something you go to a radio / scanner store and pick up

FF - Medic !!!

No, that's not correct.

You will need expensive transverters, low noise amplifiers, dishes/other antennas, decoding software, and some other stuff. probably about $1,000 once you get on the air.

You would have to beam towards the satellite, it has nothing to do with the uplink dish antenna.

You would not have to be between the two sats, or close to the ground dish/antenna. Unless you want to receive the uplink, which totally defeats the purpose! You would be listening on the downlink.

 

[mass-man]

It gets even better. In addition to dish, LNA, encoders, decoders, most of the stuff is digital and that encoder is well over $45K. We don't mess around anymore...too many others stealing video that we squirt into the air and then have no control over...besides it is really boring stuff. You can see it on any cable system...the occasional nose picking or swear word is just about not done anymore. Too many folks watching...as there are folks out that that have invested in the hardware to see the downlink.

 

[ind224]

FTA or Free To Air is alive and well. Sounds like you are across the pond.
It is a bit different here but with FTA there is no guarantee what you will get.
STB's (set top boxes) can get the new digital standards DVBS and DVB S2 in HD. Europeans have conditional access cards that can be bought to pay for programming.

If you are lucky what you want is on Ku so you can get a smaller dish.
We run C band as well and some die hards run circular. I have a 10' mesh with Linear C/Ku. I can see from 140*W to 72*W

Galaxy 19 at 95*W on the Ku side has close to two hundred ethic channels like Russia Today, Ajezeera English, Press TV, Dutche Welle. Attainable with $200 US of equipment. And yes, it is legal.
So much RF so little time.....

 

[Newshound]

heard Outside Broadcast near Exeter devon UK 457.3050 nfm when a rugby match was on,but cant find much on OB links as to what frequencys ect any help would be good thanks (world link was a frase used often )

from burts

Many broadcast trucks will send their "on-air" audio through a radio system so that all the technicians, camerapersons, reporters and announcers can hear it in their ears. In the industry it is called IFB (interuptable fold back) which allows the producers and directors of the show to give directions into the talent's earpiece. When the producer is not talking, the show audio goes out through the radio system so that all can hear what is going over the air. Many broadcast companies have permission to use certain frequencies throughout the country they are located, as long as it is a simplex system and a certain pl code.

 

[CalebATC]

And to add to it, since standard Direct-TV and Dish Network dishes uses LNB's, what IF frequencies do they use? Would it be possible to hook your scanner or SDR up and get atleast the signal?

 

[prcguy]

There is nothing you can receive from a Dish Network or Directv dish fed to a scanner except for the encrypted video carriers and a tracking/telemetry beacon or two.
prcguy


QUOTE=CalebATC;1501027]And to add to it, since standard Direct-TV and Dish Network dishes uses LNB's, what IF frequencies do they use? Would it be possible to hook your scanner or SDR up and get atleast the signal?[/QUOTE]

 

[prcguy]

If the signals are not encrypted its fairly cheap to recieve them. A 60cm Ku dish with LNB is only about $75. An analog receiver is free these days and a DVB digital receiver starts at less than $100. C-band is a bit more for the dish but the rest of the cheap hardwre applies.

Why would mention an expensive endoder if someone only wants to receive stuff?
prcguy

It gets even better. In addition to dish, LNA, encoders, decoders, most of the stuff is digital and that encoder is well over $45K. We don't mess around anymore...too many others stealing video that we squirt into the air and then have no control over...besides it is really boring stuff. You can see it on any cable system...the occasional nose picking or swear word is just about not done anymore. Too many folks watching...as there are folks out that that have invested in the hardware to see the downlink.

 

[prcguy]

Galaxy 19 is at 97W, not 95W....

FTA or Free To Air is alive and well. Sounds like you are across the pond.
It is a bit different here but with FTA there is no guarantee what you will get.
STB's (set top boxes) can get the new digital standards DVBS and DVB S2 in HD. Europeans have conditional access cards that can be bought to pay for programming.

If you are lucky what you want is on Ku so you can get a smaller dish.
We run C band as well and some die hards run circular. I have a 10' mesh with Linear C/Ku. I can see from 140*W to 72*W

Galaxy 19 at 95*W on the Ku side has close to two hundred ethic channels like Russia Today, Ajezeera English, Press TV, Dutche Welle. Attainable with $200 US of equipment. And yes, it is legal.
So much RF so little time.....

 

[ind224]

My bad on the position. I have a solid 9' spun going up this spring. Galaxy 17 @ 91* is sweet too. Try it, you'll like it.

 

[kruser]

the occasional nose picking or swear word is just about not done anymore.

Ah the good ole days when I used to build my own C band dishes from the ground up. I'll never forget the nose picking and the makeup staff doing quick last minute makeovers on the newscasters!

And then the uninterrupted live feeds (mostly with no audio) during commercial breaks of the Nascar Winston Cup races. Sometimes the commentators would have open mics but it seemed they were muted most of the times. The Gulf War video feeds were awesome as well as most were left up live 24x7. I miss those days.

 

[burts]

receiving OB's

Many broadcast trucks will send their "on-air" audio through a radio system so that all the technicians, camerapersons, reporters and announcers can hear it in their ears. In the industry it is called IFB (interuptable fold back) which allows the producers and directors of the show to give directions into the talent's earpiece. When the producer is not talking, the show audio goes out through the radio system so that all can hear what is going over the air. Many broadcast companies have permission to use certain frequencies throughout the country they are located, as long as it is a simplex system and a certain pl code.

Hi
this makes more sense as to what i heard,as i was not using anything fancy.i was impressed with the level of hard work that was going on behind the scens.very much like the paddling duck on the pond

thanks for replys

 

[CalebATC]

There is nothing you can receive from a Dish Network or Directv dish fed to a scanner except for the encrypted video carriers and a tracking/telemetry beacon or two.
prcguy


QUOTE=CalebATC;1501027]And to add to it, since standard Direct-TV and Dish Network dishes uses LNB's, what IF frequencies do they use? Would it be possible to hook your scanner or SDR up and get atleast the signal?

[/QUOTE]

What IF frequencies would they be on? I am guessing they would be about 3 bars (ok, not great quality, about half signal, I get around this on UHF SATCOMs)

I might go hook up the line from the satellite and see what I get later.

 

[prcguy]

Nor sure if I understand the queston but here are some things to chew on.

The IF frequency range for the output of most LNBs is 950 to 1450MHz, where Directv has made use of the 250-750MHz, 950 to 1450MHz and 1650 to 2150MHz range for the IF between the LNB and customer receiver due to thier massive band width and Ku mixed wth Ka band downlink signals.

Both DIsh Network and Directv use the DBS downlink band of 12.2 to 12.7GHz which does not have anything useable to the scanner owner to pick off the LNB IF. Directv's 18.3 to 20.2GHz Ka downlinks also have nothing that you can make use of with a scanner or other receiver.

Standard FSS Ku downlinks in the 11.7 to 12.2 GHz range and C-band can have subcarrier stuff that can be received with a scanner or VHF/UHF receiver and for those FTA receivers that offer a 70MHz IF out you can also find some stuff to tune in with a receiver, but not on Dish or Directv.

The signal levels from an LNB can range from the noise floor to maybe -25dBm, which is a really strong signal for a scanner type receiver.
prcguy


What IF frequencies would they be on? I am guessing they would be about 3 bars (ok, not great quality, about half signal, I get around this on UHF SATCOMs)

I might go hook up the line from the satellite and see what I get later. [/QUOTE]

 

[CalebATC]

Ok, thanks for the clarification. Were on the same frequency I guess you could say. LOL, thanks!!

Do any of these receive any other bands that could be useful to any other kind of sat listening/decoding?

 

[prcguy]

Are you referring to the Dish Network or Directv LNBs or dishes? If so the LNBs are useless for anything else unless you want to open them up and do a science experiment to tweak things around. Their also circular polarization and the free to air stuff is linear pol and a different part of the Ku band.
prcguy

Ok, thanks for the clarification. Were on the same frequency I guess you could say. LOL, thanks!!

Do any of these receive any other bands that could be useful to any other kind of sat listening/decoding?

 

[CalebATC]

Ok, I get ya. I was referring to the Direc-TV LNB's.