Dish antenna

satellite meter

2011-01-14T01:42:00.000-08:00

A satellite signal meter is a device used in satellite tv to check the signals. Satellite meter is connected to the dish through cable. It helps you tune in the best possible satellite signal. The one end of the cable is connected to LNB and the other end is connected to satellite meter. When you take this extra step to ensure a strong satellite signal, you can enjoy satellite signal even at times when other signals might fade away. For example, a strong signal will stick it out during a rainstorm, but you're more likely to lose a weak signal completely during inclement weather. Using a satellite signal meter properly helps you fine-tune the position of your satellite and improve the strength of your signal. It allows you to test the quality of signal when you’re at the satellite dish. Satellite meter also saves your time and energy, because if you don’t find a good signal you have to go inside repeatedly to check the signal. Also you need a good quality satellite meter to find the good quality signals Eb-Ce is offering Maxpeak satellite meter to find the signals.

Following are the steps to use a satellite signal meter

Connect a short RG6 cable to the connector underneath the satellite arm, also known as the LNB. Connect the other end of that cable to your satellite meter.

Loosen the azimuth nuts on the back of your satellite dish and the elevation nuts on the sides of your satellite dish. Loosen them so they are still firm and your satellite dish stays in place, but you can gently apply pressure to adjust the positioning of your satellite dish.

Move your satellite dish from side to side and up and down to try to pull in a strong satellite signal.

Watch the gauge on your satellite meter to note the quality of your signal. The needle will move to the right of the gauge as your signal improves.

Disconnect the satellite meter from the LNB connector when you are satisfied with the quality of the signal you tuned in.

catv amplifier

2011-01-07T02:47:00.000-08:00

Amplifier is a device that changes or increases the amplitude of a signal. In cable TV head-end amplifier is the most important equipment for maintaining a good quality signal. The one of the most thing in amplifier is amplification of impure signal. Amplifier gain is the ratio of the input signals to the output signals. It is not always necessary that amplifier gives you a god quality picture and high quality audio. It depends on the amplifier quality.

DESCRIPTION

Ø As the television signals passes through the cable lines the signal losses its strength. The impurity in the cable causes the signal to deteriorate and fade over distance. The signals therefore, have to be amplified at regular intervals. The number of amplifiers used and the spacing between them depends on the system bandwidth and the medium.

Ø A cable system can have hundred of amplifiers and every couple of miles amplifier needs a power. So, we connect the power supply where ever needed.

Ø The amplifier generally operates at 30v dc or less. The cable TV indoor amplifier uses the house hold power (230v AC or 12v AC).

Ø In order to minimize losses in coaxial cable that carry dish antenna signals to control room, the signals are first translated to a lower frequency range. This is done by using (low noise block converter (LNB). The signal from the LNB is delivered to a Signal to a signal splitter which is actually a multi-coupler that divides the signal into independent paths. The signal splitter is commonly called a “power divider” because it splits the signal into equal division of signals and one port is supplying 12v/8v to the LNB

Ø Then the IRD receives input from one of the output ports of the power divider. Modulator receives the audio and video signals from the receiver and modulates these outputs to form the composite output signal. The output of each channel modulator feeds into a combiner unit. The multiplexed output from the combiner is then amplified by amplifier and transmitted to the trunk lines.

Dish antenna

2010-11-25T02:04:00.000-08:00

An antenna is a transducer that transmits or receives electromagnetic waves. In other words you can say antenna converts, electromagnetic radiation into electrical current. In order to minimize the losses in cable, LNB in front of dish antenna is connected that receives the microwave signals and changes the signal in to lower frequency Range. Then the signals are delivered to a signal splitter, commonly known as power divider that divides the signal in to independent path. Then the RF signals are picked by IRD and transmit into digital information after then the signals are fed into the modulator Converts the signals into the channels and then the RF combiner, combines the multiple signals into one output signal which is then amplified by using RF amplifier and transmitted to trunk lines to homes. In homes a local station antenna is also used at the top of the roof to receive the signals. At the end you can say, antenna generally deals in the transmission and reception of radio waves. Antennas are used in systems such as radio and television broadcasting. Eb-ce provides you apical telecom consulting antennas.

LNB (low –noise block)

2010-11-25T01:59:00.000-08:00

LNB stands for low noise block. It is device on the front of a satellite dish that receives the low level micro-wave signals from the satellite then amplifies and changes the signal to a lower frequency and sends them to a cable. In order to minimize the losses in coaxial cable that carry dish antenna signals to control room, the frequency are first translated to a lower frequency range. This is done by using LNB. LNB is connected at the front of dish, LNB receives the low level micro-wave signals from the satellite and amplifies it, changes the signal to a lower frequency and sends the signal to cable. Satellite broadcast mainly in the range 4 to 21 GHZ.

The extra LNB is also added in a single system satellite dishes in order to receive programmes from additional satellites. Eb-Ce provides apical telecom consulting LNB.