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Trouble Shooter

Tracksat.com offers to its valued customers, this precious service. If you have any queries about any thing related to the Satellite World, you can send your queries to : dishtech@tracksat.com
March 2008
 


Q.1 : How I will watch free HDTV channels on my Arion receiver. I have 8 foot fiber dish antenna. Which satellites are transmitting free HDTV channels? (Imran Hussain, Dubai)

Ans: No standard MPEG2 FTA receiver will not decode HDTV signals. In fact if you try to tune to an HDTV signal with a standard receiver, in many cases the receiver will be very unhappy with that and lock up on you. It would be necessary to turn the receiver completely off (unplug it) and turn it back on after waiting a short time (30 seconds or so). If you want to view HDTV signals, you need an HDTV compatible receiver. These receivers are available but come with a rather hefty price tag. Also make sure that the signal you are trying to receive is indeed FTA. If not, then all bets are off.




Q.2 : There is a huge building near my apartment. I am not able to get good picture on my satellite TV. Is it possible to receive satellite signals through other way? (Imtiaz Iqbal, Karachi)

Ans: There’s not much you can do with the roofing tiles available today. But don’t give up right away, there is a solution with an absolute minimum signal loss. The antenna should be mounted as high as possible inside the roof. The angle of the roof should not deviate more than 45° from that or those satellites that you want to receive. One problem might be the wet snow on the roof in the spring. But there are solutions to this also. A roof heater or forced hot air will provide uninterrupted reception.




Q.3 : On my satellite receiver there are four LNB’s connected via a DiSEqC switch for reception of HOTBIRD, ARABSAT, NILESAT and the C-Band on ASIASAT. I want to receive a fifth satellite but where should the IF connection go? A friend suggested using a 0/12 volt switch but didn’t have much more advice to give. (Zahid Kamal, Quetta)

Ans: First of all you have to reach into your pocket and take out the cash you will need to buy a 0/12 volt switch and a second DiSEqC switch. Since you never really know what you will want to do in the future, I would invest in another 4-way switch so that eventually you can connect up to eight LNB’s. The power wire for the 0/12 volt switch is connected to the programmable switch output. The 0/12 volt switch has one IF output to the receiver and two IF inputs to which the two coaxial cables from the DiSEqC switches are connected.




Q.4 : Can you connect a wideband receiver or a scanner radio to a C-band or Ku-band LNB? If yes, what should we look out for? ( Raheem Dayaz, Peshawar)

Ans: : Another satellite spy is born! Unfortunately, there’s not all that much you can get from analog SCPC anymore. But if you feel comfortable playing in the digital world, you will be rewarded. LNB’s require one or two voltages, something that the scanner radio cannot provide. You can supply the necessary power externally but that would be too involved (you would need a small metal box with “F” connectors, a capacitor and a power supply). We will make it simpler. Your satellite receiver will serve as the control unit for the necessary voltages (with LNBF’s it is 13 and 18 volts




Q.5 : I watch different satellite channels, including news and entertainment. Kindly tell me what is the difference between C-Band and Ku-Band system? (Sajid Pervez, Hyderabad) A: C-band is transmitting at a lower frequency (4 MHz), while Ku band transmits at 11 to 12 GHz. C band is more commonly used in the United States and for international transmission, whereas Ku-band is the standard in Europe. C-band dishes usually come with a larger size than Ku-band satellite antennas. Apart from having different sizes, the C-Band system is offering different programmes.

Ans: I want to see the same programmes and channels I have at home on my DirecTV system when I go on vacation. If I have a dish on my vacation home in Brazil, can I bring my receiver with me and hook it up there to get the same programming as I have at home? (Peter, via mail) Answer: No, because the satellites that broadcast Directv's signals only point towards the USA. It bleeds a little into border areas of Canada and Mexico, but no way would it reach South America.




Q.6 : I have a blue screen with a banner at the bottom telling what is on but no picture. What should I do? (Samad, Karachi

Ans: This is caused by a software jam. You need to disconnect the electricity supply from the digital satellite receiver (check that the light has gone out on the box) wait for one minute and re-connect. Switch the box back on and it will say 'Searching for Listings' on the screen. Once it has loaded the programmes you will be able to operate as normal. This would indicate that the scart lead has come loose. Check the connection from the back of the digibox and the one that goes into the television.




Q.7 : What if all of the channels of the same polarity are snowy or wrong pictures on a satellite and on a neighbouring satellite the opposite channels are snowy or wrong pictures? (Example: On G5 all the odd channels are out and evens are in and on F3 all the odd channels are in and evens are out.) (Shabir, Lahore)

Ans: Polarity refers to like channels on a satellite such as all odd channels or all even channels. If the wires on the back of the satellite receiver are accessible, check those that connect to the polarizer terminals. They may also be called polarity or servo terminals. The polarity wires are usually Red, Black, and White (or Clear).




Q.8 : What is Terrestrial Interference (TI) and how does it affect my system? What can be done about it? (Shafi Rehman, Quetta)

Ans: Terrestrial Interference is anything operating on a microwave transmission which is the same as your satellite receives. Depending on the severity of the Terrestrial Interference , your screen may be totally snowy or wavy, or you may see "sparkles" in bright or dark colours on your picture. Terrestrial Interference may not affect every channel. It may only be apparent at certain times of the day. Various types of Terrestrial Interference filters are available and may help eliminate the problem.


 

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