Hi Everyone,

I noticed an advertisement with regards to CTH using C-Band on Thaicom. Does anyone know anything about this?

I'm believe my current set up is Ku-Band pointing to Vinasat2.

I'm assuming that changing over to the using C-Band on Thaicom satellite would be much better with regards to rain-fade?

Can anyone advise?

Cheers.

How bad is your rain fade? Reports on such seem to indicate should be 99.7 to 99.9 up-time using Ku even in our rainy areas if signal is not normally degraded. Perhaps it is the Sat you are viewing that is the major issue (I do not know position or coverage area so can not guess). Thaicom 5 is the major source for Thailand and if using C band it should insure no rain problem but suspect most people only have minor issues with rain even from Ku by the number of antenna I see these days - but would be interested in knowing if a real issue as plan to install Ku myself as hate the C bank antennas.

Hmmm... on Samui we had a shower and the signal went. My dish is 1.2m ku-band and perfectly aligned along with a higher-gain LNB.

I was under the impression that rain fade could be an issue to the vinasat2 satellite being a lot further away, where the Thaicom is more overhead. I also read Ku suffers more from rain fade.

If CTH via Thaicom offers the same channels, then I would be tempted to move and install a 6 foot C-band dish.

It is not so much where the satellite is (Thaicom is 76E and Vinasat2 131E

almost equally off from Thailand at 100E)

It is more a matter of the footprint, ie where the satellite aerlals are pointing.

Thaicom is optimised for Thailand

I cannot see any footprint maps for Vinasat, but I admit I did not look far. (http://www.lyngsat.com/Vinasat-2.html)

C-band is less liable to rain fade as the wavelength is longer than on Ku band

On Ku the raindrops are close in size to the signal wavelength and more likely to affect the signal.

Please keep us posted on how you get on

rocket science, wish I could understand.

rocket science, wish I could understand.

Made simple:

Ku band small dish

C band big dish

Big is better.

Makro have the CTH C band boxes, 1,990 Bht, last time

i looked, but you will need a C band dish, if you don't have

one and find someone to set it all up for you.

regards Worgeordie

PM sent to OP!

Hello everyone, I don't have enough technical knowledge, so I'm hoping you can help me out.

I live in Ubon, and my apartment won't let me install CTH with the small KU band dish. However, they have a large C band dish facing West, and this is then wired to the set-top boxes in the individual rooms. The boxes are PSI.

If I buy the CTH C band box, will I be able to watch CTH programming? Is there anything else I'd need to do (like subscribe to CTH)?

Appreciate any help

Okay if the dish in your apartment is facing west and at 76.5 degrees it should be okay as it points to Thaicom 5/6 which is where CTH transmissions are being made now. However please be aware that these transmissions are in SD grade only, no HD like those from Vinasat. My guess is that when their contract to transmit from Vinasat is finished they will start transmissions from the new Thaicom 6 satellite at 76.5 degrees .

Believe the actual position is 78.5 rather than 76.5 however. Expect you are right they will go to Thaicom 6 for the HD channels.

Thanks, appreciate the help