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    Default dish direction

    Hi guys, imgetting confused with some jargon, i put my dish up and have run the cable into the house but i need clarification of where to point my dish.
    the stuff i dont understand is:
    Elevation 44.5°
    Azimuth (true) 17.6°
    Azimuth (magn) 5.8°
    LNB Skew 13.8°

    my location is Latitude: -37.9406° Longitude: 145.0006°

    how can i work out a compass direction from all this?



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    Talking Lovely location, wonderful views.

    Quote Originally Posted by Hog Fish View Post
    Hi guys, imgetting confused with some jargon, i put my dish up and have run the cable into the house but i need clarification of where to point my dish.
    the stuff i dont understand is:
    Elevation 44.5°
    Azimuth (true) 17.6°
    Azimuth (magn) 5.8° (This is the Magnetic Compass direction for C1.)
    LNB Skew 13.8°
    my location is Latitude: -37.9406° Longitude: 145.0006°
    how can i work out a compass direction from all this?
    G'Day,
    It would seem that you neglected to say which Satellite.
    Must be C1 by your figures.
    According to "Dish Pointer" with your Lat and Long:

    Address: -37.9406, 145.0006
    Latitude: -37.9406°
    Longitude: 145.0006°
    Satellite: 156.0E Optus C1
    Elevation: 44.5°
    Azimuth (true): 17.6°
    Azimuth (magn.): 5.8°
    Looks like you could fish off your balcony.
    If you are using this program:
    You should see the physical line of site on the map.

    Kindest Regards, " The Druid ".......


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    Default

    thanks druid thats where i got those figures from, but its just a guestimate when im onthe roof, i got given a compass wen i brought all my gear i thought i need to use it

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    Question

    ok next question, im having troublt tuning. I have put up my dish and run a cable to my decoder (Strong SRT4663X )
    I have tried using my satelite finder by putting it on 5 and moving the dish until the level increases but to no avail.
    On my decoder the level is high but quality is low
    i have set the following : LNB power= on, LNB type = single, 22Khz = off
    i cant seem to locate any tv or radio signals

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    Wink

    Quote Originally Posted by Hog Fish View Post
    ok next question, im having troublt tuning. I have put up my dish and run a cable to my decoder (Strong SRT4663X )
    I have tried using my satelite finder by putting it on 5 and moving the dish until the level increases but to no avail.
    On my decoder the level is high but quality is low
    i have set the following : LNB power= on, LNB type = single, 22Khz = off
    i cant seem to locate any tv or radio signals
    You need to set more than that:
    Manual Scan
    Optus C1/Ku
    12367
    27800
    V
    All Channel
    Then / OK

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    Default

    Quote Originally Posted by Hog Fish View Post
    Hi guys, imgetting confused with some jargon, i put my dish up and have run the cable into the house but i need clarification of where to point my dish.
    the stuff i dont understand is:
    Elevation 44.5°
    Azimuth (true) 17.6°
    Azimuth (magn) 5.8°
    LNB Skew 13.8°

    my location is Latitude: -37.9406° Longitude: 145.0006°

    how can i work out a compass direction from all this?
    Hog Fish, this may help you to visualize what you're doing, it's certainly the way I approach my installations and seems to work.

    Elevation 44.5°: The angle of the line of sight of the satellite with the Earth at your location. We could, in a manner of speaking, interpret that as a measure of its height in the sky. This value corresponds to the upward tilt of your parabolic dish, not unlike the way you tilt your head to look up at the sky.

    The way I physically visualise this is to extend my arm in front of me, then raise it about half way (45 degrees) to the perpendicular (straight up). Now, if you had Superman's x-ray vision you could see the satellite in front of you.

    Azimuth (true) 17.6°: The direction of the satellite (again offset from your line of sight) in relation to True geographic North, as seen on a map.

    Azimuth (magn) 5.8°:
    The Same direction (offset) of the satellite in relation to the Earth's magnetic field (magnetic north as indicated by your compass), which is offset somewhat from true north.

    LNB Skew 13.8°: The amount your LNB has to be skewed in order to align it to the horizontal and vertical planes of polarisation of the transmissions coming from the satellite (at your location).

    This figure is a bit out for us in Australia, probably due to the calculators being calibrated for the northern hemisphere and don't take into account the preset skew on the Optus birds. The actual way to achieve the best result is to place the LNB cable insertion at the 6 o'clock and then rotate the LNB to about +40 degrees or to a position that maximises your signal strength. It is possible to rotate the LNB in the wrong direction and still get a picture, however, that would appear as the reverse polarisation whereby what is supposed to be Vertical actually scans in as Horizontal and vice versa (sort of like looking at the sky while lying down when you should be standing up). This will create a problem when you try to manually add channels or do other tweaks because the listed parameters (as seen on ) will not correspond to your setup.

    HF, the best way to find the azimuth is to use Dispointer to find a local landmark along the line of sight of the bird in question. As I have stated in another thread (link below), my neighbour's TV antenna mast is exactly under the path to Intelsat 8 (SelecTV), so without a compass I pointed the dish towards the mast and immediately got a signal.



    With a bit of practice (it took me a few weeks with the help of this great bunch of people), you can literally complete mobile installations during the commercial breaks.

    Good luck!

    UFO

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    Default

    Hog Fish,

    You said the figures were just a guesstimate.

    In Dishpointer, you can type in your exact address (which you probably did) then you can hold your left mouse button down on the green dot and drag it to the exact position where your dish is mounted.

    The figures will then be very close.

    You will still need to do a bit of fine adjustment to the dish and LNB.

    Ensure you have all the info correctly entered into your receiver (as posted by B4L)

    Manual Scan
    Optus C1/Ku
    12367
    27800
    V
    All Channel
    Then / OK

    You must also ensure you have the LNB setting in the box to match the LNB you have. eg: if it's a 10700 LNB, select the LNB setting in the box to match.

    Can you confirm you are trying to align your dish to C1?

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    Default

    thanks for all the help guys but i still cant seem to get anything, i may even have to call someone to troubleshoot or tune it for me

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    Wink

    Quote Originally Posted by Hog Fish View Post
    thanks for all the help guys but i still cant seem to get anything, i may even have to call someone to troubleshoot or tune it for me

    Before you give up, you don't seem to have said exactly what type of LNB.
    On the tab on the LNB should be written what the LO (Local Oscillator) is.
    For a single Ku LNB this is typically 11300 or 10700. This is critical to enter in your Satellite Installation. Wont work unless you do. Have a look and we'll tell you where to enter it.
    Last edited by beer4life; 28-05-09 at 10:12 PM. Reason: wrong 11300 #

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    Default

    thanks druid but i think i entered it correctly, on the lnb it says
    Lo Frequency 11.30 Ghz
    Input Frequency 12.25 - 12.75 Ghz
    Output Frequency 950 - 1450 Mhz
    Noise Frequency 0.7 db

    and yes i was aiming for the optus c1

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    Cool

    Quote Originally Posted by Hog Fish View Post
    thanks druid but i think i entered it correctly, on the lnb it says
    Lo Frequency 11.30 Ghz
    Input Frequency 12.25 - 12.75 Ghz
    Output Frequency 950 - 1450 Mhz
    Noise Frequency 0.7 db
    and yes i was aiming for the optus c1
    OK, use the TP below as it is unique to C1 and saves any confusion with the other Optus Satellites.

    Manual Scan
    Optus C1/Ku
    12367
    27800
    V
    All Channel
    Then / OK

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    Cool

    Use the dish pointer program to get this and you can click and drag the icon to your exact location and the green line is your True Bearing Line of sight to the Satellite. All you need to do then is fine tune your elevation until you get the lock and the finder off scale.





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    Default

    Hog Fish,
    My 2 cents worth..

    You are probably using an offset dish which sees the lnb focal point offset from the centre of the dish. From memory its about 25 degrees off which is why you need to use the little indicator window on the back of the mount to get an idea of the elevation.

    It's also why dishes often appear to look like they're pointing more at the horizon than they should be.

    I also presume you are using correct cabling (as in the special low noise coax). Again, having used "TV coax" in the past, the loss in signal strength is enough to bugger up your intallation.

    Good luck - it's a great feeling when you see green bars finally replace the flickering red !

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    Hi guys, i bit the bullet and got jims tv and satellite tuning service to come out. They messed about with it for a while before saying they dont know why its not working it may be the LNB or something else. They were useless and not only didnt know about actuators for smaller dishes, didnt know about that google map dish finder service but charged me $75 too.
    I went to jaycar and got a universal LNB and pointed it toward optus c1 but couldnt get a hit, so i scanned for C1 and D1 and got a hit with D1 which contains FA really but at least i felt not so useless as i got it to receice a signal. I will get back on the roof on the weekend and try and tune it to C1

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    Exclamation That's not the way to run a business.

    Quote Originally Posted by Hog Fish View Post
    Hi guys, i bit the bullet and got jims tv and satellite tuning service to come out. They messed about with it for a while before saying they dont know why its not working it may be the LNB or something else. They were useless and not only didnt know about actuators for smaller dishes, didnt know about that google map dish finder service but charged me $75 too.
    I went to jaycar and got a universal LNB and pointed it toward optus c1 but couldnt get a hit, so i scanned for C1 and D1 and got a hit with D1 which contains FA really but at least i felt not so useless as i got it to receice a signal. I will get back on the roof on the weekend and try and tune it to C1
    G'Day Cobber,
    I wouldn't have paid the bastard a cracker.
    Ring him and tell him you are reporting him to consumer affairs if he doesn't fix or refund.
    If you got a universal LNB you will have to change the settings in "Dish Installation" to " Universal/9750/10600 ".

    Kindest Regards, " The Druid ".

    PS: Please confirm if this is the firm and/or a franchisor.

    If so, I will personally give them a piece of my mind.
    Their advertising says:
    Our local technicians are available now!
    Jim's Antennas today on 1300 084 962 for a free on site quote.

    Last edited by beer4life; 30-06-09 at 08:13 AM.

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    Wink A little bit of honey makes the medicine go down.

    An update while I get further details.
    An email to the owner of this franchise.

    Attention Andrew Parke,
    Sir, I was rather annoyed to read this post on our forum at

    Hi guys, i bit the bullet and got jims tv and satellite tuning service to come out. They messed about with it for a while before saying they dont know why its not working it may be the LNB or something else. They were useless and not only didnt know about actuators for smaller dishes, didnt know about that google map dish finder service but charged me $75 too.
    I went to jaycar and got a universal LNB and pointed it toward optus c1 but couldnt get a hit, so i scanned for C1 and D1 and got a hit with D1 which contains FA really but at least i felt not so useless as i got it to receice a signal. I will get back on the roof on the weekend and try and tune it to C1

    He lives at Sandringham, and as soon as I can, will get further details from him.
    In the meantime it would be appreciated if you could make some enquiries to resolve this issue.
    It would give me pleasure to report on the forum that this matter has been resolved to everyone's satisfaction.
    I concede that you personally did not do this, but rather one of your minions.
    Kindest Regards, Bill, " beer4life ".

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    Good on you beer4life. There seem to be a lot of two-bit cowboys out there advertising "service" without any training or expertise at all. If they tried it in other professions like dentistry they'd rightly have their arses sued.

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    Unreal.... I hope he at least mowed your lawn for you.

    That's probably all he knows how to do.

    If you still haven't resolved this after the end of next week, I'll come & align it for you for free.

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    thanks for the support guys

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    Default

    Good on you beer4life.

    Unfortunitly i know Andrew Parker, and good luck getting a resolution.
    Although after reading this, perhaps you might, as he is ALL about image.... it's just a pity that doesn't extend to the image on your TV.

    Too busy paying for $950,000 factory in Port Melbourne and his $80,000 p.a. Yellow Pages ads and driving his BMW X5 to be too worried about some dish that doesn't work.
    He has tried his hand at everything to value add to his Antenna Business (Home Threatre, Media Players etc etc) i now laugh to hear he is including sats to this list.....

    Perhaps your best bet is to contact his best mate Rob and Jims Trees, he probably have a better idea on what to do.

    Lesson here: We all get caught with these "Bulk Turnover" companys once in our life. Hopefully this thread stops a few members from having to go through that pain.
    Last edited by ol' boy; 01-07-09 at 05:31 AM.

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