Need Help about connector Please

[Juan-Argentina]

Hi everybody I´m looking for help, I have a LNB wich has a connector that don´t allow me to connect to my RG6 cable.
Could somebody tellme what kind, trade, model, etc. and if is possible to use in FTA satellite. I´m insterested in adapting to RG6, but I dont know what kind of cable is.
Sorry, English is not my native languaje. Thank you all in advance.

 

[oljim60]

Hi everybody I´m looking for help, I have a LNB wich has a connector that don´t allow me to connect to my RG6 cable.
Could somebody tellme what kind, trade, model, etc. and if is possible to use in FTA satellite. I´m insterested in adapting to RG6, but I dont know what kind of cable is.
Sorry, English is not my native languaje. Thank you all in advance.

That is not a LNB, it is a LNA not going to work without a down converter.

 

[Cham]

Yep, that's a female N connector on an LNA, in order to make it work you need a block down-converter to bring the C-band signals down to L-band for your receiver to work. I still have a few of those kicking around, but much easier just to purchase an LNBF or a feed horn with modern LNBs, and add that LNA to your museum collection.

Most C-band LNBFs will fit into the original scaler ring and replace the LNA, but most come with a new scaler just in case. The LNBF will have an F-connector for standard RG6 connectors to work. There are members here on this forum that sell these units and are great to deal with, but your handle indicates you might be from Argentina? There might be retailers closer to you.

Any advice you need just ask, someone will answer, we're here to help out!

 

[Juan-Argentina]

Yep, that's a female N connector on an LNA, in order to make it work you need a block down-converter to bring the C-band signals down to L-band for your receiver to work. I still have a few of those kicking around, but much easier just to purchase an LNBF or a feed horn with modern LNBs, and add that LNA to your museum collection.

Most C-band LNBFs will fit into the original scaler ring and replace the LNA, but most come with a new scaler just in case. The LNBF will have an F-connector for standard RG6 connectors to work. There are members here on this forum that sell these units and are great to deal with, but your handle indicates you might be from Argentina? There might be retailers closer to you.

Any advice you need just ask, someone will answer, we're here to help out!

 

[Juan-Argentina]

What about this feed. it seems it has another female coenctor with a circle lnb on it (not the square one, that I had been doing some tests)

 

[Cham]

You can replace back of the feedhorn with an LNB. Looks like the feedhorn you have is set up for 2-way satellite communications, the N connector at the back (top in your view) would be where the TWA output connects (transmitter signal). If you don't need TX (FTA reception only) you would likely be ahead by replacing the feedhorn since the adapters for adding an LNB to the back would likely be difficult to find and expensive (unless someone on the forum here knows of a source). (or you can try to make one...
The LNB in the middle of the feedhorn attached to the bit of offset waveguide is likely a regular C-band LNB with the proper connector. It's set up to be the opposite polarity from the TX side at the back.
Please send us pictures of the dish and where the feedhorn attaches? I'm guessing it's an Andrews commercial ground-station system.

 

[Juan-Argentina]

Thanks a lot, I´m a really begineer in some topics. Here a pic of the original antenna, is a prodellin 1.8 wich has been several yesrs in a Bank, and they gave me to use in FTA.

 

[Brct203]

That is not a LNB, it is a LNA not going to work without a down converter.

Yep, that's a female N connector on an LNA

Just curious, what is telling you that it's an LNA, and not an LNB? The fact that the connector is N rather than F?

 

[Juan-Argentina]

Just curious, what is telling you that it's an LNA, and not an LNB? The fact that the connector is N rather than F?

I have another pic to see inside

 

[KE4EST]

Just curious, what is telling you that it's an LNA, and not an LNB? The fact that the connector is N rather than F?

Correct.

 

[Brct203]

Correct.

good to know, thanks

This said, I do remember using some C-Band LNBs with N-type connectors, but I guess they were not very common

 

[Cham]

The N connectors & LNAs were common here too about 25+ years ago when consumer C-band TVRO was just starting up. Since then things have evolved to where the LNA and amplifier/converter integrate into one unit. The new LNBs are much more efficient since there are no extra cables and connectors to creat extra losses at such high frequencies, especially at Ku. LNBFs take integration one step further by including the feed horn and LNB.

Looks like a nice dish. Hope the cable is good (looks like lots!). For FTA, you would likely be better off replacing the whole feedhorn assembly with an LNBF. Are you interested in C or Ku or both bands? That dish would be really hot for Ku, pull in lots of weaker feeds with some head-room. It's a bit small for C-band though but should get some of the stronger transponders. If this is your first venture into FTA you are off to a great start!

 

[Brct203]

looks like it has a nice sturdy mount too!

 

[beavs2112]

Thanks a lot, I´m a really begineer in some topics. Here a pic of the original antenna, is a prodellin 1.8 wich has been several yesrs in a Bank, and they gave me to use in FTA.

Hi Juan-Argentina to our forum. As has been mentioned already ask any questions you may have.

That is a nice gift

I think that antenna was also setup for C-Band circular polarization. I have attached a picture which shows the circular polarizer. Also I have pointed to in your pic what I think is the circular polarizer. You may not need the circular polarizer for FTA in Argentina. If the FTA channels you want to receive say RHCP or LHCP in a sat channel list then you need it. If you don't need it then see if you can remove it to keep the signal losses down to a minimum.

 

[Juan-Argentina]

The N connectors & LNAs were common here too about 25+ years ago when consumer C-band TVRO was just starting up. Since then things have evolved to where the LNA and amplifier/converter integrate into one unit. The new LNBs are much more efficient since there are no extra cables and connectors to creat extra losses at such high frequencies, especially at Ku. LNBFs take integration one step further by including the feed horn and LNB.

Looks like a nice dish. Hope the cable is good (looks like lots!). For FTA, you would likely be better off replacing the whole feedhorn assembly with an LNBF. Are you interested in C or Ku or both bands? That dish would be really hot for Ku, pull in lots of weaker feeds with some head-room. It's a bit small for C-band though but should get some of the stronger transponders. If this is your first venture into FTA you are off to a great start!

Thanks a lot for answering, in fact i´ve been trying to catch some satellites with an adaptator, it seems is going to be good in ku Band, asi you said. I m interested in both C and Ku. I replaced the cable already, that´s an old picture. Thanks again

 

[Juan-Argentina]

looks like it has a nice sturdy mount too!

You´re right! and it is too heavy the LNBF mount. I couldn´t find the original mannual of the dish, unfortunatelly

 

[Juan-Argentina]

Hi Juan-Argentina to our forum. As has been mentioned already ask any questions you may have.

That is a nice gift

I think that antenna was also setup for C-Band circular polarization. I have attached a picture which shows the circular polarizer. Also I have pointed to in your pic what I think is the circular polarizer. You may not need the circular polarizer for FTA in Argentina. If the FTA channels you want to receive say RHCP or LHCP in a sat channel list then you need it. If you don't need it then see if you can remove it to keep the signal losses down to a minimum.[/QUOTE


Hello and thanks a lot for your comments, that´s a good notice for me, I can get circular C band without a polarization. I really have to try these months, altought I have to look more information about adapting a coomon LNB to that horn, or to the holder I bought from China (see the pic). I think I will post a new topic for that