LF941D

 
LF52
TV Signal Level Meter and Analyzer

feature

  • Designed specifically for the ISDB-Tb terrestrial format now being implemented in South/Central America.
  • Accepts 5MHz - 870MHz and 950MHz - 2.6GHz (Satellite)
  • Supports both digital and analog transmission systems to aid in the analog to digital transition.
  • Supports broadcast, cable and satellite (option) operation.
  • Measures RF level, C/N. BER, MER and DELAY PROFILE
  • Provides Constellation display and Spectral Display
  • Presets and measurement logs can be stored in Compact Flash card for ease of use and documentation purposes.
  • Provides auto-channel search function for terrestrial and CATV.
  • Remote control via RS-232 serial interface.
  • Lithium-Ion battery operation, battery and AC adaptor included.

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Field RF Signal Level Meter

Digital terrestrial measurement (1)



Digital terrestrial measurement (2)

Spectrum measurement　････ Antenna installation environment checking

Unstable spectrum waveform sometime can be fixed by changing the antenna location, direction, and height.



Digital terrestrial measurement (3)

Delay profile measurement



Digital terrestrial measurement (4)

Delay profile measurement

If the delay waveform is bigger than guard interval(126μS), it will be an interference signal（Approximately D/U=20dB signal can not be received)


The measurement range of LF52 is 252μS(Twice of guard interval)



Digital terrestrial measurement (5)

（Note1）In reality most of the receivers will able to receive signal even though below 34dBμV. However, because of the level variation and multipath effect, 46dBμV and above is desired.

（Note2）In the case of carrier modulation format 64QAM (3/4)



Equipped with the latest innovations in RF Signal level measurement, the new LF52 bring flexibility, reliability and accuracy to your every day measurement challenges. The instruments handles both analog and digital terrestrial broadcast for the ISDB-Tb format, satellite(option) and CATV RF signals.
Level, C/N (carrier to noise), BER, MER and delay profile measurements can easily be performed when evaluating digital transmission paths. The instruments also offer a spectral display and a number of surprisingly robust analysis functions for such a small and portable device.