Please check my math...

[Xevious2K]

Greetings all,

This is my first post, so please, bear with me. I just ordered my PanSat 3500, dish and motor. and I am trying to figure this stuff out. I have searched the fourm, but could not find the answer I'm looking for.

My first question is about True South. I found that my Declination is 14* 12' W. So I think that my true south is 180* - 14* 12' = 166.12*. Is this correct?

My second question is about the motor. I know That I have to point the motor at True South (166.12*), but I don't think that there is a satellite there. According to lyngsat, the nearest sat is EchoStar 1 and 2 at 148.0*W. How do I aim the motor? Also, Do I have to have to add or subtract my declination from the EchoStar location?

Thanks for all your help, I'm sur I will have more questions. If anyone knows of a good site that has a complete "How-To", please let me know.

Sincerely,

 

[Dishpointer]

Where are you located? I highly doubt that 148 is your south bird. Take a look here: http://www.sadoun.com/Sat/Installation/HH-mount-installation.htm

 

[Xevious2K]

Sorry, Forgot that peice of Info...

Long: 72 41.808W
Lat: 41 18.924N
Dec: 14.12000W

Guilford, CT 06437

Thanks

 

[PSB]

Guilford, CT 06437
Latitude 41° 18.924'N Longitude 72° 41.808'W

Sat Name Sat Lng Az(t) Az(m) El Skew
---------------------------------------------------------------

Intelsat 901 18.0W 115.1 130.3 17.4 -42.9

Intelsat 603 20.0W 116.7 131.9 18.8 -42.1

NSS 7 22.0W 118.4 133.6 20.2 -41.4

Intelsat 905 24.5W 120.6 135.8 22.0 -40.3

Intelsat 907 27.5W 123.3 138.5 24.0 -38.9

Hispasat 1C/1D 30.0W 125.6 140.8 25.7 -37.6

Intelsat 801 31.5W 127.0 142.2 26.6 -36.8

Intelsat 903 34.5W 130.0 145.2 28.5 -35.1

AMC 12 & Telstar 11 37.5W 133.1 148.3 30.4 -33.3

NSS 806 40.5W 136.4 151.6 32.1 -31.2

PAS 6B/3R 43.0W 139.2 154.4 33.5 -29.4

PAS 1R 45.0W 141.5 156.7 34.5 -27.9

Intelsat 705 50.0W 147.6 162.8 36.9 -23.7

Intelsat 707 53.0W 151.5 166.7 38.2 -21.0

Intelsat 805 55.5W 154.9 170.1 39.1 -18.6

PAS 9 58.0W 158.3 173.5 39.9 -16.1

Amazonas 61.0W 162.6 177.8 40.8 -13.0

EchoStar 3 & Rainbow 1 61.5W 163.3 178.5 40.9 -12.5

Estrela do Sul 1 63.0W 165.5 180.7 41.2 -10.8

Brasilsat B2 65.0W 168.4 183.6 41.6 -8.7

Brasilsat B1 70.0W 175.9 191.1 42.2 -3.1

Nahuel 1 & AMC 6 72.0W 178.9 194.1 42.3 -0.8

AMC 6 72.0W 178.9 194.1 42.3 -0.8

DirecTV 5 72.5W 179.7 194.9 42.3 -0.2

SBS 6 74.0W 182.0 197.2 42.2 1.5

AMC 5 79.0W 189.5 204.7 41.8 7.1

Nimiq 2 82.0W 193.9 209.1 41.3 10.4

AMC 9 83.0W 195.4 210.6 41.1 11.5

Brasilsat B3 84.0W 196.8 212.0 40.9 12.6

AMC 16 85.0W 198.3 213.5 40.6 13.6

AMC 3 87.0W 201.1 216.3 40.1 15.7

Intelsat Americas 8 89.0W 203.9 219.1 39.4 17.7

Galaxy 11/Nimiq1 91.0W 206.6 221.8 38.7 19.7

Brasilsat B4 92.0W 207.9 223.2 38.3 20.6

Telstar 6 93.0W 209.3 224.5 37.9 21.5

Galaxy 3C 95.0W 211.9 227.1 37.1 23.4

Intelsat Americas 5 97.0W 214.4 229.6 36.2 25.1

Galaxy 4R 99.0W 216.8 232.0 35.2 26.8

AMC 4 101.0W 219.2 234.4 34.2 28.3

AMC 1 103.0W 221.5 236.7 33.1 29.9

AMC 15 105.0W 223.8 239.0 32.0 31.3

Anik F1 107.3W 226.3 241.5 30.7 32.9

DirecTV 6 & EchoStar 6/8 110.0W 229.1 244.3 29.1 34.6

Anik F2 111.1W 230.2 245.4 28.4 35.2

Solidaridad 2 113.0W 232.1 247.3 27.2 36.3

SatMex 5 116.8W 235.7 250.9 24.7 38.4

EchoStar 7 & DirecTV 7S 119.0W 237.8 253.0 23.3 39.4

EchoStar 9/Intelsat Americas 13 121.0W 239.5 254.7 21.9 40.3

Galaxy 10R 123.0W 241.3 256.5 20.5 41.2

Galaxy 12 125.0W 243.0 258.2 19.1 42.0

Galaxy 13/Horizons 1 127.0W 244.6 259.8 17.7 42.7

Intelsat Americas 7 129.0W 246.2 261.4 16.3 43.4

AMC 11 131.0W 247.8 263.0 14.8 44.1

Galaxy 1R 133.0W 249.4 264.6 13.4 44.7

AMC 10 135.0W 250.9 266.1 11.9 45.2

AMC 7 137.0W 252.4 267.6 10.5 45.7

AMC 8 139.0W 253.8 269.0 9.0 46.2

EchoStar 1/2 148.0W 260.2 275.4 2.3 47.7

Satellite Finder is (c) Copyright 2004, P. Lutus

DirecTV 5 (72.5w) is a DBS bird so you would have to use a DBS LNB and set your L.O. to 11250 if you use that satellite for true south.

I would use AMC-6 with a KU LNBF

 

[Xevious2K]

So if I understand this correctly, I should line up with AMC-6, (Which is what I mainly want, NASA TV), and point 0 on the motor to that Sat as my true south. Correct?

 

[aaron01]

(Which is what I mainly want, NASA TV)

The only problem is NASA TV is on C-Band. I was really interested in watching NASA also and was disappointed to find that out, guess I will have to get a big dish sometime!

 

[vj9999]

Check out http://www.lyngsat.com/echo7.html if you have a circular lnbf.

 

[rkrenicki]

I am also in connecticut, use AMC6 for your true south (on the motor it will be 0.1E) For Declination here, you would add it, so it would be 194 degrees on the compass.

I have modified the sadoun calculator for myself (and most people in connecticut), it is located at http://www.ultatryon.com/satellite/

You can use a feed or two to line up the dish, and then motor around to wherever you want to go from there.

For Nasa TV, you will need a circular LNB to pick up Echo7 at 119.. if you have one kicking around, you can always use an old 18" dish for this purpose, and use a 2x1 DiSEqC switch (much like I do with the Phase2 in my avatar, except thats for 91, 110, and 119, and using a 4x1 switch)

 

[Xevious2K]

Ultatryon,

Thanks for the info, I will try that when the motor and dish show up. I am getting a universal LNB with my dish and I have an old oval DTV dish with 2 of the 3 lnb's. I've also seen some talk on this fourm about a standard lnb. Can you, (or anyone), explain the differences between these LNB's?

Thanks

Also, This is from NASA's website. If someone could verify, that would be great. lyngsat shows it as digital clear.

The New Digital NASA Television

As of 12:01 a.m. EDT July 1, 2005, digital NASA TV is available on AMC 6, Transponder 17C. Analog NASA TV is no longer available on satellite AMC 6, Transponder 9. Analog NASA TV will remain on AMC 7, Transponder 18C through NASA's Return to Flight mission.

Thanks Again for all your help.

 

[rkrenicki]

The clip from NASAs Website is for their C-band feed, since they have no Ku feed in the US.

This is a list of every satellite it is on.. http://www.lyngsat-address.com/ln/NTV-NASA-Television.html

Remember, 4 digit transponders are C band, and 5 digit transponders are Ku

The Universal LNB has two bands 10.7-11.8 and 11.6-12.7GHz which are selected using a 22khz tone sent down the wire... In the US, only the high band is used (11.6-12.7GHz), and Standard LNBs work in this band only, so do not have a 22khz switch. In order to use a Universal LNB in the US, you would have to send a 22k tone nearly constantly, and this will not allow you to use an external 22khz switch. (I know, this is confusing, but its really not a big deal for you)

If you have the DTV dish with 2 LNBs (seperated with nothing in the middle), then this is a phase 2 dish (like mine) if you have two more LNBs you can strap two of them together (dummy for 101 and extra for 91), and pick up the music channels from BEV and Dish

 

[Mr Tony]

The clip from NASAs Website is for their C-band feed, since they have no Ku feed in the US.

They technically have one KU feed in the US

Dish 119

 

[rkrenicki]

Well, thats not an official NASA feed, just a retransmitted feed by Echostar, if you wanted to get technical, you could say there were two, since its on DirectTV at 101 as well

 

[Xevious2K]

OK then, Here comes a stupid question...Ready...

The receiver I ordered is a PanSat 3500s and according to the website, (and I think Icebergs review), it will pickup signals from both c band and Ku band. Can I add a c band LNB next to my Universal Ku LNB and hook them together with the DiSEqC 4X1 peice that comes with the receiver?

Remember, I'm new to this so have pitty on me

Thanks, You have all been a great help.

 

[PSB]

Sure you can use two LNBF, but a C-band LNBF is HEAVY. And you will need a 40" dish, even better a 1.2m even for just a few C-band channels. Really a 6' dish is needed for C-Band. I would work on KU band for now and worry about C-Band at a later date. (IMHO)

 

[mbarnes]

Remember, 4 digit transponders are C band, and 5 digit transponders are Ku

Actually, transponders are numbered 1-24. Sometimes, there may be an H or V appended to the transponder number to indicate horizontal or vertical polarity. Sometimes, there may be a C or K (or Ku) appended to indicate band.

The four digit and five digit numbers refer to the actual downlink frequency. C band uses 3700-4200 MHz while Ku band uses 11700-12200 MHz (in US). Most transponders are 36 MHz wide. Analog NTSC signals typically take a full transponder. However, newer digital formats, as well as SCPC and other users are much narrower in bandwidth, therefore, you may see a number of users or signals on a given transponder. In looking at some of the charts, you may see a number of services listed with different frequencies, but all on the same transponder.

BTW, if you're playing with the math, you will see that the satellite bandwidth is 500 MHz, but if you add up the transponders (24 X 36) you come up with 864 MHz. That is due to the polarity. Odd transponders will be on one polarity while even will be on the other polarity. Which is on which will vary with the satellite. Usually (but not always ) adjacent birds have opposite transponder/polarity arrangements. The transponders overlap each other. This is why polarity adjustments and skew is important, to get only the desired polarity and not the cross-pol signal.

 

[rkrenicki]

Well, on Lyngsat, they are labeled by downlink frequency, and that is what I was refering to, since only C band really uses the Transponder numbers 1-24

For C-band you can get away with some very strong signals (like the Anik sats) with a smaller dish (100-120cm or 40-48"), but to really get most everything you will need a 6 foot dish or bigger.

Honestly, if you want the most FTA, and NASA, just use the dish you ordered along with the Phase2 you have pointed at 119/110 and use a 2x1 or 4x1 DiSEqC switch (one may even come with your reciever)

 

[mbarnes]

FWIW, I just checked over a dozen listings on lyngsat, and every one of them had transponder numbers for both the C and Ku services listed. They are the little "TP XX" numbers under the downlink frequency.

So call me fussy about enjoying proper terminology used

Just like the folks who complain about the many misspellings of receiver. They like to quote " I before E except after C or when sounded as A as in neighbor and weigh". Of course, don't ask them to explain weird ancient science

 

[rkrenicki]

my point is that C-band Transponder numbers are uniform, because they are mostly analog, or wideband digital, where they are not with Ku..

If you wanted to watch The Tube on G10R, you dont switch to Transponder 1, instead you tune to 11720 H 27692.

I guess my real point is that Transponder numbers (back from the analog days) have been depreciated since the quantity of analog tps on Ku are next to nil. While it may be technically accurate, it is no longer viable to refer to them by analog Transponder numbers.

 

[rkrenicki]

Regardless.. the point I was trying to make is on Ku, he can only get TPs with 5 digit downlink frequencies.. (to get back on topic)

 

[Xevious2K]

Thanks for all the info guys. I think I have enouh info to get started now. I got the dish yesterday and expect the receiver and motor today. Since wires are already run, It should be a quick install. I'll aim for AMC6 and post my results here.

Thanks again everyone, without you, I'd be aiming the dish at Mars.

Sincerely,