40" C/Ku - Band Dish

[spindoctor]

scalar ring

i have a scalar ring for sale if anyone is interested

pm me

thanks john

 

[saidias]

Photo update! Would anyone who is using a C band LNBF on a miniBud, would you please post new picts of your mounts? I am trying to design a mount for my 1.2m p*

 

[spindoctor]

its only 26.00 from dow electronics and heavy duty too

 

[alex1234]

Asc421 Lnb

I've been followed this thread for a while now. I got my ASC421 LNB with
my Primestar dish 40"X30". I tried to lock in the signal for 123W (G10R)
but somehow I don't get good signal. Here is what I did:
1). Aim 123W with linear LNB until I got 75% quality.
2). Replace KU LNB with ASC421 LNB
3). Adjust/tilt both slightly.
4). I also repeat the same steps 1,2,3 for 97W but still no luck.

My equiqment:
- Primestar 40X30
- Coolsat 4000 Pro
- Location in San Diego

Is there a different kind of ASC421 ? I got this one from ebay for
$50.

Please help.

 

[PSB]

Unless you get the C-Band LNBF in the exact focal point the elevation to the satellite will be WAY off compared with the KU LNBF. Also you may need a bigger dish for this Satellite as it does not seem to be the strongest for me. Anik F1 at 107w is real strong!

 

[alex1234]

Pet,

Thank for the reply. I want to see if my equiqment can pick up any
C-band signal at all. What is your horizontal and vertical setting for 107W Anik F1 from your location ? Is it the same as KU-band ?

My zip code is 92124.

Alex

 

[PSB]

Anik F1 is at the top of my ark so that helps. (199 Az. 37 ele. for me)

Here is where you can expect to find it.......(and the rest)

                      San Diego, CA 92124
           Latitude 32° 49.206'N Longitude 117° 5.916'W

                         Sat Name Sat Lng Az(t) Az(m)    El  Skew
-----------------------------------------------------------------
                       Telstar 12   15.0W 263.4 249.9 -18.4 -56.6
                                 
                     Intelsat 901   18.0W 265.0 251.6 -16.0 -56.8
                                 
                     Intelsat 603   20.0W 266.1 252.7 -14.4 -57.0
                                 
                            NSS 7   22.0W 267.2 253.8 -12.8 -57.1
                                 
                     Intelsat 905   24.5W 268.6 255.2 -10.7 -57.2
                                 
                     Intelsat 907   27.5W  90.2  76.8  -8.3 -57.2
                                 
                   Hispasat 1C/1D   30.0W  91.6  78.1  -6.2 -57.1
                                 
                     Intelsat 801   31.5W  92.4  79.0  -5.0 -57.1
                                 
                     Intelsat 903   34.5W  94.0  80.6  -2.5 -57.0
                                 
              AMC 12 & Telstar 11   37.5W  95.7  82.2   0.0 -56.7
                                 
                          NSS 806   40.5W  97.4  83.9   2.5 -56.5
                                 
                        PAS 6B/3R   43.0W  98.8  85.3   4.6 -56.2
                                 
                           PAS 1R   45.0W  99.9  86.5   6.3 -55.9
                                 
                     Intelsat 705   50.0W 102.9  89.5  10.5 -55.0
                                 
                     Intelsat 707   53.0W 104.7  91.3  13.1 -54.4
                                 
                     Intelsat 805   55.5W 106.3  92.9  15.2 -53.8
                                 
                            PAS 9   58.0W 108.0  94.5  17.3 -53.1
                                 
                         Amazonas   61.0W 110.0  96.6  19.8 -52.2
                                 
           EchoStar 3 & Rainbow 1   61.5W 110.4  96.9  20.2 -52.0
                                 
                 Estrela do Sul 1   63.0W 111.4  98.0  21.4 -51.5
                                 
                     Brasilsat B2   65.0W 112.9  99.4  23.1 -50.7
                                 
                     Brasilsat B1   70.0W 116.7 103.3  27.2 -48.6
                                 
                 Nahuel 1 & AMC 6   72.0W 118.4 104.9  28.8 -47.7
                                 
                        DirecTV 5   72.5W 118.8 105.4  29.2 -47.4
                                 
                            SBS 6   74.0W 120.1 106.6  30.4 -46.7
                                 
                            AMC 5   79.0W 124.7 111.2  34.2 -43.7
                                 
                          Nimiq 2   82.0W 127.6 114.2  36.4 -41.7
                                 
                            AMC 9   83.0W 128.7 115.2  37.2 -41.0
                                 
                     Brasilsat B3   84.0W 129.7 116.3  37.9 -40.3
                                 
                           AMC 16   85.0W 130.8 117.4  38.6 -39.5
                                 
                            AMC 3   87.0W 133.1 119.6  40.0 -37.9
                                 
              Intelsat Americas 8   89.0W 135.4 122.0  41.3 -36.1
                                 
                 Galaxy 11/Nimiq1   91.0W 137.9 124.5  42.6 -34.3
                                 
                     Brasilsat B4   92.0W 139.2 125.7  43.2 -33.3
                                 
                        Telstar 6   93.0W 140.5 127.0  43.8 -32.3
                                 
                        Galaxy 3C   95.0W 143.2 129.7  45.0 -30.3
                                 
              Intelsat Americas 5   97.0W 146.0 132.5  46.1 -28.0
                                 
                        Galaxy 4R   99.0W 148.9 135.5  47.1 -25.7
                                 
                            AMC 4  101.0W 152.0 138.5  48.0 -23.3
                                 
                            AMC 1  103.0W 155.1 141.7  48.9 -20.7
                                 
                           AMC 15  105.0W 158.4 145.0  49.6 -18.0
                                 
                          Anik F1  107.3W 162.3 148.9  50.4 -14.8
                                 
         DirecTV 6 & EchoStar 6/8  110.0W 167.1 153.6  51.0 -10.8
                                 
                          Anik F2  111.1W 169.0 155.6  51.3  -9.2
                                 
                    Solidaridad 2  113.0W 172.5 159.0  51.6  -6.3
                                 
                         SatMex 5  116.8W 179.4 166.0  51.8  -0.5
                                 
          EchoStar 7 & DirecTV 7S  119.0W 183.5 170.1  51.8   2.9
                                 
  EchoStar 9/Intelsat Americas 13  121.0W 187.2 173.7  51.6   6.0
                                 
                       Galaxy 10R  123.0W 190.8 177.4  51.3   9.1
                                 
                        Galaxy 12  125.0W 194.4 180.9  50.9  12.0
                                 
             Galaxy 13/Horizons 1  127.0W 197.9 184.4  50.3  14.9
                                 
 Intelsat Americas 7 & EchoStar 5  129.0W 201.2 187.8  49.7  17.7
                                 
                           AMC 11  131.0W 204.5 191.1  49.0  20.4
                                 
                        Galaxy 1R  133.0W 207.7 194.3  48.1  23.0
                                 
                           AMC 10  135.0W 210.8 197.4  47.2  25.5
                                 
                            AMC 7  137.0W 213.7 200.3  46.2  27.8
                                 
                            AMC 8  139.0W 216.6 203.1  45.1  30.0
                                 
                     EchoStar 1/2  148.0W 227.8 214.4  39.4  38.5

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

 

[alex1234]

Pete,

Thanks for the info. Apart from 107W Anik F1 were you able to find
any sats with comparable signal ?

Alex

 

[PSB]

2-3, (G11/G4R/IA-6.analog and digital) at the top of my arc the rest got slightly weaker as I traveled east and west. Still well worth it, had a LOAD of fun with the 40" then went to the full 6' BUD : )

 

[9999]

Hey PSB or anyone else who have tried...How is the analog reception on the mini-BUD, particularly those who have tried it on a primestar?

 

[PSB]

Some channels were perfect, some were slightly snowy, but watchable. Some were mainly snow! It had been a LONG time since I had seen a snowy screen : ) That was half the fun!

 

[9999]

Thanks. As far as the focal depth is concerned, you and some others mentioned setting back the lnb as far as possible. Might that include possibly moving it back beyond the mounting spot? Maybe extending it a few inches.

 

[pdnettles]

Hey Pete,

Is the scalar ring just a good mounting point, or does it really help the signal, and what do you think a 36" dish will produce?

Seems like I've just gotta' give it a try unless you say it's useless

PD

PS: Haven't used the ASC421 I got from you yet, so I'm antsy to try it if it's even worth the time!

 

[PSB]

The scalar ring is a MUST, it helps collect the signal and direct it into the LNB, and it helps stop interference from adjacent satellites!

Tried it without, signal was lower!

 

[pdnettles]

You didn't comment on using the 36" dish.

PD

 

[PSB]

I tried a regular 36" metal dish.......did not work as well (at all) as the 40" P* dish!

 

[pdnettles]

Thanks Pete,

I really do appreciate your time. Guess I'll just be patient 'tillI can get something bigger, even tho' I do have this burning desire for some c-band action ( been drooling to try & get some analog feeds.

My big problem is the space to install it. I have been given an 8' er, but my back yard is just too small to support it. I do have a clear shot at T6 & G3 tho. That's why I really want to try something!


PD

 

[WyrTwister]

Basically, unless your reciever has the hookups for this, you'll be stuck on either V or H (hopefully not somewhere in between ). I have one of those here, and it works for testing... but for a long term setup, I'd spend the $32 on one pf PSB's auto-switching c-band lnb's.

Ordered a C - band LNB , feed horn & co-rotor off og ebay . Going to try it on the 90 cm offser dish . Can a newer voltage switched / polarity LNB be used successfully on this feedhorn ? Without removing the co-rotor ?

Thanks ,
Wyr

 

[WyrTwister]

Yes I adjust the skew as I move off the True South position, looking at your (GREAT) picture the "0" on the skew should be at the top for true south.

The other problem seems to be the same one I have, the C-Band LNBF is too high where it is at on the holder, so the elevation will have to be adjusted to hit the satellite signal.

I need to do some work on mine to get the LNBF as close to the exact focal distance but mainly the height.

My cousin and I played with his P* dish , with one of the Ku LNBF's I had ( the P* LNBF that came with the dish had H & V F connectors & did not work on one of the polarities ) .

Due to the way we were using perferated strapping ( plumbers tape ) to hold the LNBF ro the arm , we had to change the dish elevation . And to the way curve on the end of the P* arm , the " new " LNBF would not fit down far enough in the curve .

So , I am not supprised to hear you have to change elevation on the P* dish , when switching between Ku & C band .

Wyr

 

[WyrTwister]

MrMilesG:

Haven't taken one apart but I'm told there are scalers behind the plastic waveguide covers on the offset LNBF's.

Yes , but they are kind of funnel shaped , instead of flat .

Wyr