DTH installation
DTH means Direct-To-Home Satellite TV. DTH bypasses the Cable operator and comes directly from the Satellite to our houses. We can view DTH TV in our homes by using a small antenna, Set-Top-Box (STB) and LNBF (Low Noise Block Down converter). Originally developed for connecting far-flung areas which do not have cable access this technology is now used world-wide for premium programming direct to the home bypassing cable operators or other forms of Satellite TV delivery.
Remember DTH delivers Laser Disc Quality Picture and CD quality Sound to the TV and makes viewing an ultimate experience which even your cable operator cannot provide.
- What does Doordarshan DTH offer?
Doordarshan DTH is the nation’s digital satellite entertainment service DTH (Direct to home). Using the most advanced satellite technology, Doordarshan DTH delivers about 33 video and 14 audio channels of programming to homes and businesses that have DTH receiving equipment, which features a small satellite dish, a digital set-top receiver, LNBF and a remote control for the STB. DTH offers an incredible selection of entertainment for every member of the family — all in 100% digital-quality picture and sound that DTH is known for. - Can I install the DTH System myself or should I hire someone?
installation is more complicated so you’ll definitely want a professional to take care of it. - Can I install the satellite dish inside my house?
In order to receive the signal, the dish must have a direct line of sight to the Satellite through a window or Balcony (in the South-East direction). However, many types of window glass degrade the satellite signal. Therefore, we strongly recommend that you install your satellite dish outside in a suitable location. - Can I get satellite television if I live in an apartment?
Yes, as long as you have a balcony which has direct line of sight (in the South-East direction). Please note that there should not be any obstructions by means of trees/buildings and any Microwave link as they affect the signal strength received by the antenna. - If I own one receiver that is hooked up to more than one TV, can I watch the same program on each TV without an additional charge?
Yes. All TVs that are hooked up to a common receiver will receive the same satellite signal. - I wish to run two TV sets in different rooms. Can I do it with one receiver and dish?
No. The concept works on one receiver and one TV. The signal from the common receiver can be given through the loop-through output to the next receiver and from the receiver to the TV. However only the channels which are available in the same polarization on which the channel is running in the common receiver shall be available. - How can I receive channels on two TVs independently on the same dish antenna?
Two independent outputs can be obtained by use of a dual LNBF on the dish antenna in place of single LNBF. The signals can be given to the receiver and from receiver to the TV. However use of a bigger size of dish antenna is recommended so that the signal quality does not get deteriorated. - Can weather interfere with my reception?
Television reception on the system is highly reliable year-round and nationwide. During heavy rains or lightening, however, some DTH customers may experience a temporary loss of picture quality. This phenomenon is due to rain attenuation. To avoid this problem you must install an Antenna of Bigger size. This phenomenon also can occur if the dish or low noise block converter (LNB) accumulates too much of water. When water accumulates on the dish, the service is not lost but the strength of the signal can be weakened. This “signal fall-off” occurs when water content is at its highest. So you should wipe off the dish in Rainy season.
Most retailers would suggest you to go for a low size antenna but the size of the antenna is very crucial and has to be calculated by EIRP and foot-print coverage. We will shortly be adding this feature on our web-site wherein you will be able to calculate the antenna size yourself! - So what can you do?
Wait for the bad weather to pass and your signal should return to normal. If the signal doesn’t return, re-set your receiver by turning it off, unplugging it for at least 15 seconds, then plugging it back in. If water has built up on the dish or LNB, wipe off the dish and LNB in Rainy season. - DTH does not operate in rain. Is it true?
No. The reception quality decreases due to interference by rains. However you can view the DTH channels by using the appropriate size of dish antenna.
Most retailers would suggest you to go for a low size antenna but the size of the antenna is very crucial and has to be calculated by EIRP and foot-print coverage. We will shortly be adding this feature on our web-site wherein you will be able to calculate the antenna size yourself! - On which satellite Doordarshan DTH is transmitted?
Currently Doordarshan DTH is transmitted on NSS-6 Satellite (This is as per current information. Doordarshan can change this at their convenience) - Is satellite television better than cable?
In a word, YES. DTH Satellite television offers state-of-the-art picture and sound — this means digital picture and audio. You have access to more channels and you have an incredible amount of movie, sports and international programming options. Overall, satellite television is cheaper than cable — you get far more for your money. Moreover premium programming world-wide is available only on DTH and this concept will shortly start in India. - How do I read the channel charts?
http://www.apnadth.com/tech_ovr.htm#channels - What are the components (Bills of Materials) for DTH system?
1. Ku Band Antenna
2. LNBF
3. Coaxial cable (LNBF to Receiver)
4. Digital satellite Receiver - Do you guarantee that right now free channels will remain free?
No, no one can guarantee “free channels”. You will receive these channels as long as they remain free and in the clear mode (not scrambled). We make no guarantees or claims about programming. - How do I peak my dish?
http://www.apnadth.com/product.htm
http://www.apnadth.com/all_products.html - What channels can I get with your receiver?
We have various ranges of Receivers which are given below.
1. Soldier 007 (FTA Set-Top Box Slim design with Remote control)
2. Challenger 3GX (FTA Set-Top Box with front panel and Remote control operation)
3. Universal (FTA as well as 2 CI slots for pay channels with front panel and Remote control operation)
4. Champion (FTA Set-top box with DVD/VCD/MP3/CD Player)
5. Winner series (FTA Set-top box with 12V DC Operation)
Using Soldier and Challenger Receiver You will receive channels that are digital MPEG2 and not scrambled. Using Universal Receiver you will receive channels that are digital MPEG2 and not scrambled. You can receive pay channels provided the CAM Module and Smart Card for the same is available from the service provider. Using Champion or Winner series Set-top Box you can get other value added services with DTH. - Of the above given Receivers which Receiver should I buy?
Primarily we suggest you to study the various models available and based on the price/features ratio make a choice. If you face any problems in deciding the exact model you can call our help-line numbers. - What size dish do I need for Ku reception?
Normally, within the boundaries of the India, you can use a 60cm or 90cm dish. Fringe areas should use a 1.2 cm or larger dish. Southern Part of India or Northern Part of India should use larger size of Antenna as the signal in the Southern Part and Northern Part of India is weak.
The past year has seen a voluminous increase if the sales of hardware for the reception of Ku signals in India. Small dish antenna systems for reception of the DTH signals from the NSS 6 satellite have proven, for the past year, to be the driving force in the industry. With the start of the DD DIRECT DTH service, sales of dish receiving systems reminded one of the start of the cable industry in the mid-nineties, when the launch of every new satellite of channel in India, would send sales of dish antennae, LNBs and receivers soaring. Similar is the case of what is happening now with Ku-system sales.
Lets look at the dish first.
However, many questions arise. The use and installation of the Ku antenna is not the same as for a C-band antenna. In fact we receive numerous queries at our office, whether an existing C-band antenna can be used for reception of Kusignals. The answer is yes and no – depends on how good quality your existing antenna is. If it’s a solid sheet orperforated antenna (with tiny holes) then yes, however you would have to change your LNB ofcourse.
If you are using the old chicken-mesh type of antenna, then no way Offset dishes are commonly found in DTH systems. The surface of an offset fed dish is a section of a larger prime-focus parabola. The feed assembly, which is still located at the focus of the larger “parent” dish,mappears to be offset from that portion of the reflective surface in use. Since the feed/LNB structure is offset, it does not block incoming signals.
In practice, no dish is perfect for a number of reasons. The feed at the focal point is bigger than a “point” so it intercepts some signals arriving from directions slightly off the main axis. Also, irregularities and imperfections in the shape of the surface causes reflection errors so that some off-axis signals are detected while some targeted signals pass by unobserved. Satellite & Cable TV
Components Used
- Small antenna
- Set-Top-Box (STB)
- LNBF (Low Noise Block Down converter).
