New install dish with rotor: mast offset 20°

stal4 · #1 (**permalink**) 04-08-2003, 11:27 PM

Just recd new system today. Brainstorming of satellite instal

F.Y.I: location - San Antonio texas 78228
lat 29.42
long: 98.56, elevation 55.7 or P° of 55.7, LNBF -2.7°
azimuth 176.9 (180.1)

When I get on the roof, the mast is not level by 20° (havent yet permanently installed it yet. but as per the HH-100 instructions to get the elevation angle of the rotor is just to set the latitude setting (29.42), but for me that would be 29.42 PLUS 20° angle shift which would compensate for the 20° offset to say to make the mast level! The mast is now leveled. correct???? yes or no? ( what I should set the rotor angle to?, 49.42°?)

THEN: it says to get the elevation of the DISH or adjust the angle bracket on the dish. So for me would that be: BY THE FORMULA: 60°-P° + the
20° offset I have for the mast. Would that be 24.3°. [60-55.7+20=24.3°]
Is that correct.

I will probably permantely install the mast tomorrow and it will be NOT LEVEL by 20°, so In my calculations above I have to compensate for this 20° offset, then I can continue to DISH POINTING and recevier power up.

I would appreciate anyones input.
thanks art

Sadoun · #2 (**permalink**) 04-09-2003, 08:43 PM

The mast MUST be level or you will never be on the satellite arc. Even if you compensate with the rotor elevation by 20*, it will be off when you try to adjust for TRUE SOUTH. Don't even waste your time.

Dish elevation seems correct for your location. :wink:

stal4 · #3 (**permalink**) 04-09-2003, 10:51 PM

Thanks for the Info Sadoun. I have also been going over things last night and you are right it has to be level, so I'm working on that tomorrow to heat and bend the mast to be level, then install.

So for my coordinates: SAN ANTONIO TX. la 29.42, lo 98.56, fixed dish is 55.7°, as per the HH100 instructions, the rotor will be set to 29.42°. the dish as per the formula will be set to 25.12°, with a level mast? I'm pretty sure that this is correct, so just maybe I will hook up tomorrow, but still considering if I should rig some turn buckles to adjust ° a little easier once I get up there. I guess its just patience time again.