Advertisment: Broadband via satellite
Advertisment: Planet Earth rotating animation

www.satsig.net

Satellite Internet Forum.

Welcome, Guest. Welcome to anyone who has come from the Space forum. I can cope with one forum, but not two. The Space forum has been deleted       Forum rules.
      Home            Login            Register          
Pages: 1

stabilized antenna

(Read 8126 times)
Alkan CIT
Senior Member
★★★
Offline



Posts: 72
Aug 5th, 2009 at 10:45am  
Any recommended stabilized antenna Vendor?
Back to top
 
 
IP Logged
 
Admin1
YaBB Administrator
★★★★★
Offline



Posts: 1099
Reply #1 - Aug 5th, 2009 at 10:49am  
Back to top
 
WWW  
IP Logged
 
Alkan CIT
Senior Member
★★★
Offline



Posts: 72
Reply #2 - Aug 5th, 2009 at 10:55am  
yea; I know them.

is there any cheaper Vendors, as you know customers are not on the wave length, some are looking for the best technicality and the other are price sensitive.
Back to top
 
 
IP Logged
 
Eric Johnston
Senior Member
★★★
Offline



Posts: 2109
Reply #3 - Aug 5th, 2009 at 11:24am  
Here are some more names to try:

Sea Tel 4006 1.0 metre Antenna
Orbit AL-7103 "Orsat" 1.15 metre Antenna range of
Schlumberger Spacetrack  range of antennas
Sola (Broadpoint) Stabilised Antennas Seatel9797, ELSP, Orbit AL-7103, AVL/Tracstar 0.96 auto acquire
KNS Supertrack Z12 MKII 1.2 metre Antenna
C2Sat 1.2 metre Antenna datasheet 2.4Mbyte pdf
EPak 0.90 metre Antenna
CVG CBSP-SSG 1.17 metre Antenna

I can't vouch for any of these and don't know prices etc.

Here is an evaluation of the RF characterisics of a number of antennas
INTELLIAN 0.6 S60
KNS 0.6 and 0.85 Supertrack Z6Mk2 Z8
KVH 0.6 KVH-60cm
MAC 0.75 ISA 75
NAVISYSTEM 0.7, 0.81, 0.95
ORBIT 1.15 AL7103 EA A033
RADIO MARINE 0.8 Broadband 80
SEATEL 0.6, 0.6, 1, 1.5 WSAT24 2406 4006 6006
SITEP 0.8 Sitep 80
and their validation (or otherwise) by Eutelsat.
http://www.eutelsat.com/satellites/pdf/Earth-Station-Vessels.pdf

Note that small antennas tend to be unacceptable for use due to interference problems.  Make sure you understand any technical limitations, such as spread spectrum being needed and case by case approval problems etc.  

Best regards, Eric.
Back to top
 
 
IP Logged
 
Alkan CIT
Senior Member
★★★
Offline



Posts: 72
Reply #4 - Aug 5th, 2009 at 11:32am  
Thank you sir for your Info.
Back to top
 
 
IP Logged
 
TDMAMike
Senior Member
★★★
Offline



Posts: 826
Reply #5 - Aug 9th, 2009 at 1:21pm  
What hub/modem vendor are you using, and what kind of link are you looking to sustain?

I will withold my recommendation until then. 

Back to top
 

Regards, &&&&M
 
IP Logged
 
Alkan CIT
Senior Member
★★★
Offline



Posts: 72
Reply #6 - Aug 9th, 2009 at 2:05pm  
We are looking for using that Stabilized antenna for SCPC/SCPC dedicated links and on HN services DVBS2/TDMA
Back to top
 
 
IP Logged
 
TDMAMike
Senior Member
★★★
Offline



Posts: 826
Reply #7 - Aug 9th, 2009 at 3:12pm  
1024k by 512?  512/256k? 

What kind of equipment footprint are you considering (that is naturally, somewhat dependent on the link throughput requirements).  60cm?  1M?  1.2 Meter?

If your intent is to get some decent throughputs off the maritime/mobile VSAT platform, you need to consider spreading the upstream carrier (RTN).  Especially with smaller apertures such as 60cm and below.  Ensure you do your homework on how each of the stabilized parabolics point, because there are a few methods utilized (that each of them use to point).....some, better than others.

SCPC although technically feasible, will be limited by the fact that most providers will not allow you to put up a significant amount of power (a very large carrier), due to the likelihood of Adjacent Satellite Interference (ASI).

Bottomline: You will achieve better throughput spreading, but naturally you will need to weigh the associated costs of the MHz required to spread, against the service plans you intend to offer to see if it is cost effective.

Back to top
 

Regards, &&&&M
 
IP Logged
 
Pages: 1