Quote:
Originally Posted by mickel1138
I'm on 97.4 and 27.7, and when I calculate the angles to G25 for a statis setup, it says I need to look at 179.7 (south) and 57.7 elevation.
The DG240 has both elevation and latitude, each on one side. The coronsponding latitude (27) in elevation is 63, now the motor tube has a 35 degree declination. So now we are at 28 and the dish has to compensate the rest. In the book from the DG240 it say 35-declanation which is 4.5, so that's 30.5. So I set the dish at 30.5 inclination.
And 28 offset from the motor, + dish = 58.5, so i'm about 1 degree to high. Makes sense, because when I move it 110 and 119 for reference, I get a peak signal when passing (motor is moving), and then I can never peak it again. So I already figured my elevation is off. |
OK, I see what you're doing, you're calculating "OK", although you made a few roundoff approximations. Using your latitude of 27.7, that would equate to an elevation of 62.3 using your method, not 63, which is most of your 1 degree error right there, plus you're using a rounded off declination. Ie the declination of a south sat (which you should not use) is 4.6, not 4.5, so if you used the right angles in your method, you'd get 62.3-4.6=57.7, ie just what you're looking for.
However, I'd really recommend using a motor latitude setting of 28.3 (ie equates to 61.7 on elevation scale). I'd also recommend using a declination of 4.0 instead of the 4.5 or 4.6. Basically your motor elevation will be 0.6 degrees lower, but you'll be making up for that by using 0.6 deg less declination. This will allow you to track across the arc. You cannot track perfectly across the arc using the declination settings found on the
Sadoun web page, and/or tables found in most motor manuals, etc.
Quote:
Originally Posted by mickel1138
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Using a Fortec Classing NA, I have set me LO for 10750, and 22khz to auto. It seems to work on the echo sat's, have not yet found a anything lo-band. I looked at several TP's but mostly TP21 @ 12084. Since that's what I would like to see.
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That 10750 should be right for the linear ports on the
Invacom QPH031 (use 11250 when using the circular ports). You shouldn't need 22KHz for anything, unless you're using a 22khz switch. I assume you're using a standard lnbf type, not universal?
Also, make sure that the SR value on that 12084 transponder is correct. Lyngsat says that it is 22000 right now. Some of those SR values change from time to time, and the default values in the receiver may be off.