With the help of our headends for Motorola and Scientific Atlanta systems, a distribution network, and some specialized equipment, we simulate the real field experience starting from the input of the signal up until its output and final distribution. This gives us the opportunity to try out any headend equipment to the extent of its performance.

Modulators

The modulators are connected to the headend, where they transmit a radio signal often containing audio and video. This is so we can verify that it can tune in to the desired channel if it is an agile modulator, or if it is preset to a channel established by the manufacturer if it is a fixed modulator. At the end of the distribution, a decibel meter is used to determine how many decibels it is transmitting.

Encoders

The equipment is connected to the corresponding headend where an audio and video signal is sent in order to verify that it is encrypted properly according to the standards established by the manufacturer.

Combiners

In order to test the combiners we send different channel frequencies from the headend, where their performance is verified.

Data Comander/Data Pad Modulation

The Data Comander/Data Pad Modulation are connected to the header (GI) from where it sends an audio and video signal. In the same manner, the corresponding converter (Set-top Box) is connected depending on the frequency emitted by the Data Commander/Data Pad Modulation. These signals are used to view their performance, with the help of a Spectrum Analyzer which checks the gain and frequency.

Data Splitter

The header (GI) transmits different signals via the DPM to the data splitters. Their function is verified with different boxes according their corresponding frequencies.

Optical transmitters and receivers

We test the optical transmitters with a radio frequency signal that contains audio and video transmitted from the headend. The transmitters retransmit this signal and it is relayed to a node in an optic form. The node, in turn, transmits the signal to an optical receiver. The transmission and reception of the signal is measured and checked ensure that they meet the parameters specified by the manufacturer.

Monitoring

The performance of all equipment is monitored with the help of a TV and a converter box (if needed) connected to the grid of our headend in order to simulate the fate and performance in a real environment and ensuring that they are working as they should be.

Finalizing

After passing all tests in the remanufacturing and/or repair process, the equipment is stamped with a safety and security seal. These specify the order number and technician who supervised the process along with the date the equipment was tested.