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0455-2013

RF attenuation measurement with a Meter H60

Description: 

The ICT-2 spanish legislation requires the measurement and recording of attenuations in CATV networks, as well as signal levels, C/N ratio and BER for signals of MATV/SMATV, in all outlets of the facility.
For MATV/SMATV the measure is “direct”, whereas for CATV it is necessary to perform an external calibration. To do this it must be recorded firstly the signal level at the output of the noise generator (Ref 5930), frequencies to be measured and, subsequently, recording the signal levels in the outlets at those same frequencies. Upon completion of the exportation of the measured values to the PC, it can calculate the difference between the two signal levels thus obtaining the value of attenuation.

 

With the new meter H60 the whole process of attenuation measurement is simplified, significantly reducing the time spent on it and the probability of a human error.
For direct measurement of attenuations, set frequencies to be measured and calibrate the noise generator automatically with the Meter H60. Then, attenuation measures are shown immediately on the Meter. This process is faster, easier, and allows to confirm “in situ” if attenuation measurements are consistent with the desired values or, which is the same, according to the project.
He number of frequencies that can be configured ranges from five to ten; all of them displayed in the screen of the Meter. It is possible to define typical ranges like 5MHz, 862MHz, 950MHz

 

and 2150MHz.
This functionality can have many applications: from measuring the attenuation of a roll or a piece of coaxial cable, up to obtain the response of a tap, splitter, ... etc.
It is possible to save multiple configurations of attenuation measuring in its memory to be used subsequently, being enough pressing a single key to keep stored the records of each outlet performed at different frequencies.
As usual, this function performed by the H60 meter has been inspired by the requirements of installers, and shows once again the ability of Televés in customizing the product to market needs

Hélder Martins
International Technical Assistance
 

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