upside down SL-3 for 10deg elv

[i4tas]

Hi,

I have a SL-3 dish, 99-101-103. My elevation is 10 degrees. since bracket doesn't go that low, id like to do inverted setup. 10+(40 deg) = 50 degrees then... so 101 will work great, but won't 99 and 103 be flip-flopped and the SWM lnb is hard wired for 99 and 103 in their specific spots? Any ideas?

 

[texasbrit]

If you are in a location where the elevation is 10 degrees, you are not going to be in the satellite coverage anyway, at least for an SL3. Anchorage needs a 10 deg elevation but you need the special Alaska/Hawaii dish to get signal.

 

[raoul5788]

i4tas, what's your zip code?

 

[i4tas]

guys don't worry about where i am... I am in a plenty strong enough beam for a dish of this size... been doing this stuff for years. If anyone knows if the SWM lnb is smart enough for 103 signals to come in the 99 feed and visa versa that would be great!. Otherwise i guess I'll just go outside and try this myself.

 

[texasbrit]

Pretty sure it won't work. Even if the LNBs are identical, when the receiver wants a signal from 99, it will get a signal from 103 instead.
This is in addition to the geometry issues with the dish/LNB

 

[raoul5788]

i4tas, we are trying to help, not out you for being somewhere you aren't supposed to be. If you don't want the help, don't ask.

 

[stvcmty]

I think you could flip-flop 99/103 with a SL3 legacy LNB, a SWM8 or 16, some diplexers and a polarity locker.

With a legacy LNB, Ka comes out on the coax between 250 and 750 MHz. Ku comes out in the normal satellite range. The trick would be to take the ka from the 22khz on outputs of a polarity locker and send it to the 22khz off inputs of the SWM8/16, while not messing up the Ku, hence the diplexers.

So for example: http://www.solidsignal.com/pview.asp?p=PI-6S-T&ss=421650

Hook up the SAT/TV port of 4 diplexers to the 4 inputs of a SWM8/16.
Hook up the SAT/TV port of 4 diplexers to outputs 1-4 of the polarity locker.
Hookup the SWM3 LNB to the inputs of the polarity locker.
Run a cable from the sat port on the diplexer on polarity locker output 1 to the sat port on the diplexer on the SWM8/16’s Sat 99/101 18V port.
Run a cable from the sat port on the diplexer on polarity locker output 2 to the sat port on the diplexer on the SWM8/16’s Sat 99/101 13V port.
Run a cable from the sat port on the diplexer on polarity locker output 3 to the sat port on the diplexer on the SWM8/16’s Sat 103/110/119 18V port. (I would guess this is ignorable since 110 and 119 are not used by a SL3 LNB)
Run a cable from the sat port on the diplexer on polarity locker output 4 to the sat port on the diplexer on the SWM8/16’s Sat 103/110/119 13V port. (I would guess this is ignorable since 110 and 119 are not used by a SL3 LNB)
That runs ku straight through.

Run a cable from the TV port on the diplexer on polarity locker output 1 to the TV port on the diplexer on the SWM8/16’s Sat 103/110/119 18V port.
Run a cable from the TV port on the diplexer on polarity locker output 2 to the TV port on the diplexer on the SWM8/16’s Sat 103/110/119 13V port.
Run a cable from the TV port on the diplexer on polarity locker output 3 to the sat port on the diplexer on the SWM8/16’s Sat 99/101 18V port.
Run a cable from the sat port on the diplexer on polarity locker output 4 to the sat port on the diplexer on the SWM8/16’s Sat 99/101 13V port.

That would cross over the Ka.

The above was a thought exercise, I do not know if it would work or be safe to do, proceed at your own risk. It was not spelled out to enable unauthorized DirecTV reception, it was explained to illustrate the separation between signals in the “b-band” and the traditional satellite IF band.

 

[Broe67]

stvcmty, that is more work than the OP should have to go through. We are not trying to solve Black Matter Physics here.

 

[Broe67]

guys don't worry about where i am... I am in a plenty strong enough beam for a dish of this size... been doing this stuff for years. If anyone knows if the SWM lnb is smart enough for 103 signals to come in the 99 feed and visa versa that would be great!. Otherwise i guess I'll just go outside and try this myself.

Just post the stupid Zip Code. Otherwise this topic can be closed by the mod's.

 

[jcrandall]

Given the elevation it is likely that he is in Canada or similar significantly-northern areas. Any reasonable setup that far north is best done with the Alaska dish/LNB, which is designed for this.

Moving beyond the location or other concerns, the best solution is likely just to use the equipment designed for obtaining signal in these types of situations.

 

[Jimbo]

Given the elevation it is likely that he is in Canada or similar significantly-northern areas. Any reasonable setup that far north is best done with the Alaska dish/LNB, which is designed for this.

Moving beyond the location or other concerns, the best solution is likely just to use the equipment designed for obtaining signal in these types of situations.

This is what I was thinking as well, but didn't want people to not help if it was pointed out to be true.
As for flipping the LNB over, I gotta believe that there is some kind of degree of angle when it's being built that would cause it to point WAY lower than necessary if flipped over.

 

[i4tas]

Kaku Slim Line Satellite Dish is working great at 8 degrees evelation (right side up).

Removed the elevation adjuster, to allow the bracket to go to it's lowest elevation setting of 20 degrees. mounted my pole in the exact direction of the 101 satellite plumb and level, but then offset the pole by about 12 degrees, so it is no longer level in both axis. Ka signals are super solid! 101 is a little weaker than in the lower 48 or with a big antenna but 99% of the content I need is HD on 99 /103.

It was difficult finding satellite signal when you have to guess elevation and azimuth, but eventually i locked on. Will tweak the setup this week and report my best signal strengths.

Definitely would be easier if mount supported low elevation areas... as my findings are suggesting that the regular dish and LNB are just fine for the far North and the more expensive and heavy HI/AK dish really isn't need... unless you live in a area with heavy rain all the time.

 

[jcrandall]

Definitely a hard setup, glad you got it working. You should post a couple pictures of how you ended up with the dish setup.

 

[Claude Greiner]

10 degrees

 

[i4tas]

re-pointed the dish today... still not perfect but too cold to waste much time. Will re-point and maybe raise it higher come Spring. UPS trucks block signal, SUVs just pixelate, and cars are not noticeable.. Working great!

 

[Claude Greiner]

Where the hell do u live where it gets to 30 below

 

[Jimbo]

Where the hell do u live where it gets to 30 below

I was gonna ask that too, but figured its North of us.

 

[raoul5788]

Probably south of Fairbanks somewhere based on a 10° elevation.

 

[Danny001]

He's gotta be way up there cause I'm just across the border from maine and my elevation is 27 I think my guess is Alberta or Manitoba

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[Danny001]

something is off cause I would think your 101 numbers should be higher than 103 at that.. I'd think you should be able to get both 99 and 101 in the high 80 s low 90

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