Forum Home
Press F1
 
Thread ID: 94766 2008-11-11 08:52:00 Satellite channels help, what equipment/parts needed lightfoot (39) Press F1
Post ID Timestamp Content User
719516 2008-11-11 08:52:00 My friend of mine wants to get these channels:

www.lyngsat.com

Please advise what is needed to get those channels. Someone said this may be the coverage/satellite.

www.lyngsat-maps.com

For example, what type of disc, LNB as he already to working sky dish, and a decoder that can get freeview tv. Thanks
lightfoot (39)
719517 2008-11-11 10:00:00 Well looking at some of the satellite coverage maps on the lyngsat site you would need a 3.5m-4m dish! :eek:
A standard Sky dish is usually only 60cm.
CYaBro (73)
719518 2008-11-11 10:11:00 How do you work this out?

The advice was 2.3 -2.4 dish.
lightfoot (39)
719519 2008-11-11 10:45:00 I think CYaBRO worked it out by seeing just how far the satellite's track is from NZ as opposed to the Freeview and other satellites that pass right over NZ or very very close to us. beeswax34 (63)
719520 2008-11-11 11:02:00 I think CYaBRO worked it out by seeing just how far the satellite's track is from NZ as opposed to the Freeview and other satellites that pass right over NZ or very very close to us.

Freeview etc are still in geosync orbit, along with every other satellite tv service the world over - the only difference is where the transponders are aimed and how tight / what polarity the signal beam is.

This is why your dish points north at such a low angle...
Erayd (23)
719521 2008-11-11 18:02:00 How do you work this out?

The advice was 2.3 -2.4 dish.

Well looking at the first link you provided, the only satellite that actually covers NZ is Vinasat 1.
If you click on the C Beam link next to each of those you get a map showing the coverage area.
NZ is only covered by 30 dBW and, if you look at the key next the map, you see that for 30 dBW of signal you need a 320-400cm dish.
The rest of the satellites don't even cover NZ so unless you can find the channels you want on a satellite that does cover NZ you won't be picking them up.

I'm not sure why you linked to the OptusD2 satellite as I don't see the channels you want to watch listed on there.
Again, if you look at the first link you have, you will see which satellites are broadcasting the channels you want.
CYaBro (73)
719522 2008-11-11 19:40:00 I see what you mean.

35 dBW requires 180-225 cm dish
30 dBW requires 320-400 cm dish.

Would 240 cm dish (and C Band LNB) be sufficient as this was the advice given from a tech. Thanks
lightfoot (39)
719523 2008-11-11 20:15:00 its been a long time since i;ve dealt with anything of that size but i would go 3m. i'm not even sure that a 2.4m is a commonly advailble size.
for all the hassl, cost of contruction to mount them etc you might as well just get the bigger dish. the difference in cost will be minimal. the dish itself is the cheap part, its the rest that cost the big $$.

you need to remember that while 2.4 dish will be ok, all you need is a bit of rain for the signal to drop out. the lower to the horizon it is the worse that gets due to the amount of air that the signal has to pass through. ie more chance of rain somewhere along the route.
so basicly goes as big as you can afford.
tweak'e (69)
719524 2008-11-11 20:16:00 I see what you mean.

35 dBW requires 180-225 cm dish
30 dBW requires 320-400 cm dish.

Would 240 cm dish (and C Band LNB) be sufficient as this was the advice given from a tech. Thanks

I don't know enough about satellite transmission but pretty sure if you had a smaller dish you may still get the signal but would be more prone to rain fade and other atmospheric conditions.
CYaBro (73)
719525 2008-11-11 21:19:00 The next question please.

How then to recognize good quality dish and LNB? What makes them good quality and what makes them not.
lightfoot (39)
1 2