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DavidJackson4

join:2009-08-21
Magalia, CA

Satellite internet via big dish?

I have a big dish I used to use for C Band television. I have been told I can use the dish, but not the LNB, to get satellite internet downloads.

Does anyone have any experience with this? If so, how would I go about acquiring a Ku Band LNB, which I am told I need?

Any help would be most appreciated.

David@toadtown.com



Pakapab
Premium
join:2002-03-17
Cap Haitien

Sorry, but you do need a KU band dish to receive the KU signal, the C band dish will not work.



rjr002

@baesystems.com
reply to DavidJackson4

In addition to the Ku band LNB you will need a
Combined C/Ku Feedhorn like the Chaparral Corotor II Plus.
And a new coaxial cable run from the Ku LNB to the receiver.
Skyvision or Sadoun carries these items.



grohgreg
Dunno. Ask The Chief

join:2001-07-05
Dawson Springs, KY
reply to DavidJackson4

Is it a mesh dish? or solid?

//greg//


DavidJackson4

join:2009-08-21
Magalia, CA

Hi Greg;

The dish has a mesh but only the lead part of a pencil will go through the mesh.

One person did tell me that it will work with Ku Band if a whole pencil will not go through the mesh. I checked that out and the sharpened end lead part goes through the mesh but where the wood starts won't go through the mesh.

Regards;

David J.


DavidJackson4

join:2009-08-21
Magalia, CA
reply to rjr002

Hello rjr, thanks for responding to my query.

Where would I get a Ku Band LNB and how would I install it?

What is a C/Ku Feedhorn? My dish has a part where the wires go which says "Chaparral" on it. That is the part which I think moves the dish. I don't know if it is a Corotor II Plus or not.

Why can't I use the existing cable? (It is buried and then goes under the house so if I could keep using it that would save some $$ and time digging.)

Regards;

David J.


DavidJackson4

join:2009-08-21
Magalia, CA
reply to Pakapab

Hello Pakapab;

Thanks for responding to my query.

What is the difference between a C band dish and a Ku Band dish?

Regards;

David J.



grohgreg
Dunno. Ask The Chief

join:2001-07-05
Dawson Springs, KY

4 edits
reply to DavidJackson4

said by DavidJackson4:

The dish has a mesh but only the lead part of a pencil will go through the mesh.
Well, that's an unusually fine mesh for C-band, but I still wouldn't be too optimistic. It's designed to reflect frequencies between about 3.4 and 6.0 GHz, which equates to wavelengths between 4cm and 10cm. Satellite Ku-band wavelength on the other hand, is much shorter: roughly between 2.1cm and 2.7cm. It's the Ku-band transmitter frequenty - up in the 14GHz range - that represents the Achilles heel in most BUD conversion projects.

And FYI, you cannot simply "download" internet content with a LNB. You need a transmitter to send the request for such downloads. LNBs are receive only devices. For satellite internet you need a TRIA (Transmit/Receive Integrated Assembly) which consists of a LNB, transmitter, waveguide, transmit reject filter (or OMT), and a feedhorn. A pretty "big" feedhorn as a matter of fact, otherwise you'll only end up using a small portion of the BUD.

Most BUD conversion attempts (to Ku-band satellite internet) end up either disappointing, or - more commonly - simply unfinished.

//greg//
--
HN7000S/98cm Prodelin/2w Osiris/ProPlus - G16/1250H/Germantown - NAT 66.82.187.152/Gateway 66.82.25.10/DNS 66.82.4.12 and 66.82.4.8 - Firefox 3 - AV/Firewalled by NIS2009

DavidJackson4

join:2009-08-21
Magalia, CA

Hi Grhogreg;

Well it sounds as though I will be getting in over my head pretty quickly.

I have no idea where to get the parts which you mention, nor do I have any idea what the cost of those parts might be.

If, by some miracle, I were able to procure all those parts and put the system together would it be one way only? (Down, of course.)

Regards;

David J.



grohgreg
Dunno. Ask The Chief

join:2001-07-05
Dawson Springs, KY

said by DavidJackson4:

If, by some miracle, I were able to procure all those parts and put the system together would it be one way only? (Down, of course.)
I guess you missed my point - there is no such thing as receive-only internet. You have to have a send side to request web pages, files, content, etc from internet servers. There is a type of satellite connection that's loosely termed "one-way", but that refers to the satellite receive portion. The send portion is via phone line, so technically it's still two-way. But the vast majority of satellite internet connections are bona fide two-way; satellite send/satellite receive.

Satellite internet providers subsidize the hardware costs, much like satellite TV providers. You'll almost certainly spend as much or more trying to make your BUD work, as you would simply buying a purpose-built satellite internet system.

//greg//
--
HN7000S/98cm Prodelin/2w Osiris/ProPlus - G16/1250H/Germantown - NAT 66.82.187.152/Gateway 66.82.25.10/DNS 66.82.4.12 and 66.82.4.8 - Firefox 3 - AV/Firewalled by NIS2009


Pakapab
Premium
join:2002-03-17
Cap Haitien
reply to DavidJackson4

David, If you are interested in satellite internet and do not know very much about it, I suggest that you do a little research on this site and find what service would be best for you and simply purchase it from one of the satellite isp's. ie Hughesnet, Wildblue, or Starband, these are the major 2 way satellite internet providers; that is sending and receiving your internet via satellite. Or you could go something like skyway usa, which transmits its signals via your telephone line, but your downloads come in via satellite at a much faster speed than your phone line.
These services come with all their equipment, installation and installers are usually provided with the installation.
--
HN7000s ProPlus on Horizons 1, 1270mhz on a 1.2m dish, 1watt tx, sig-81 acp-76
Starband Nova 1500 on G27, on a 1.2m dish 2watt tx EbNo-10.3


tobicat
Premium
join:2005-04-18
Tombstone, AZ

Pakapap I get the impression that he thinks he can some how download internet with out an account similar to the free tv stuff.
--
9000 spaceway III, 7000S SatMex 5 990, Dlink wirless



helpfulhermy

@spcsdns.net

The price of a proper dish and lnb is about $35.00 so why bother pending time and or money trying to convert an old C band dinosaur?



bbinabox

join:2009-02-27
Louisville, KY
kudos:1

1 edit
reply to DavidJackson4

As Hermy says, with dish prices so low these days, its well worth your time getting a KU-band mini-dish and forgetting the C-band altogether.

Have a great day everybody.

Thomas-


tobicat
Premium
join:2005-04-18
Tombstone, AZ
reply to DavidJackson4

C band is alive and well in some parts of the world. I got an email add from these guys just yesterday.

And I could swear I saw two or three yesterday when I was on Ft Huachuca. There are a few little agencies their that kinda use this stuff.

»www.huachuca.army.mil/site/Visitor/index.asp

»www.perlagrp.com/Telecoms/Antennas.htm
--
9000 spaceway III, 7000S SatMex 5 990, Dlink wirless

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