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VSAT technology and installation >> LinkStar Forum: VSAT hubs and terminals >> Anyone help line up a dish on Camp Speicher Tikrit
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Message started by A.Walker on Feb 25th, 2008 at 11:50am

Title: Anyone help line up a dish on Camp Speicher Tikrit
Post by A.Walker on Feb 25th, 2008 at 11:50am
Hi can anyone help a customer of ours line up his dish to W6 , he is having problems trying to align to the Eutelsat W6 21 East

Title: Re: Anyone help line up a dish on Camp Speicher Ti
Post by josephml21 on Feb 25th, 2008 at 9:04pm
Dear Mr Walker,

I am making arrangements today to goto Camp Spiecher,  if everything works out I should be there in about 72 hours.  I will email you as soon as know get confirmation that the trip is possible.

Thank you

Joseph Leicht

Title: Re: Anyone help line up a dish on Camp Speicher Ti
Post by cylent on Feb 26th, 2008 at 4:54am
its really a matter of polarization

when i first started this whole finding the satellite business i spent two days once asking my friend to come over with his fancy sat finder.

with isite its really a piece of cake. in 10 minutes i can find u the sat.

just loosen all the bolts for elevation and az then sweep slowly by way of UP DOWN then left right.
in other words, go UP then sweep left right then DOWN then sweep left right. SLOWLY.

|__(go right)_____
..............................|
____(go left)_____|
|

it helps if you have a compass so you know the area you're aiming at.

polarization again is a B*** because you can point directly at the sat and it wont show it unless the polarization is set correctly.

just my .02 cents.

Title: Re: Anyone help line up a dish on Camp Speicher Ti
Post by Eric Johnston on Feb 26th, 2008 at 8:52am
Polarisation needs to be set accurately (+/- 1 deg) to avoid interference to other people.

Note that errors in polarisation of 10 deg or so either way will make little difference to your observed receive signal at the site so it is very difficult (*) for you to adjust polarisation on site by measurement.  You are required to get into a very narrow steep null, which is best detected and measured at the hub using a test CW transmit carrier from you.

I would recommend initial setting of polarisation angle by calculation.  The giant polarisation scales on the back of many the modern dishes are excellent.

(*) methods for finding the polarisation angle by local measurement are:
.   Use a narrow resolution bandwidth spectrum analyser and a cross pol CW beacon from the satellite.  Adjust to the centre of the null.
.   Using the wanted receive signal quality.  Turn until a severely degraded, but stable, receive signal is observed.  Record the degraded quality accurately and mark the angle.  Repeat on the opposite side and adjust for exactly the same degraded quality.  Then half the angle.

Best regards, Eric.

Title: Re: Anyone help line up a dish on Camp Speicher Ti
Post by Army_sattech on Mar 19th, 2008 at 1:44pm
You should be able to call your BW provider.
Artel, Spacelink, ArrowHead, Intelsat, Eutelsat.

When first accessing a satellite it's important to PnP you antenna properly.  The providers NOC Engineer’s, will be able to assist you in this and help you optimize you signal.

Title: Re: Anyone help line up a dish on Camp Speicher Ti
Post by kingpinzs on Mar 29th, 2008 at 7:11am
I am also trying to set up my internet with linkstar s2 modem and to the w6. on my sat metter I get 84% but it wnt lock on. any idea why?

Title: Re: Anyone help line up a dish on Camp Speicher Ti
Post by josephml21 on Apr 1st, 2008 at 4:17am
Mine stopped locking on about a month ago also, either something changed on the satellite or your meter lost its programming.

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