Related Equipments for Digital TV (DTV)
Signal Generators (SG) and Measurements信号発生器・測定器
Delay time measuring equipment
OFDM DELAY ANALYZER
MODEL 5288
In the case of composing SFN in Digital Terrestrial Broadcasting, It's necessary to adjust at the timing of signal transmitted from each transmission station.
For that purpose, this equipment measures the transmission delay time between a studio to each transmission station by using delay time information of the AC(Auxiliary Channel) data.
Digital Terrestrial Broadcasting Signal Generator
DIGITAL SIGNAL GENERATOR
MODEL 6575
This equipment is a signal generator which corresponds to a transmission method of Digital Terrestrial Broadcasting.
It's possible to switch between the built-in PN signal and the external TS signal(ASI) input, and it's equipped with 4 output terminals of IF signal.
One of them, It's possible to output an any channel signal in UHF band by the conversion function.
DIGITAL SIGNAL GENERATOR
MODEL 6575A
Digital terrestrial signal (Portable)
This equipment is a signal generator in accordance with the transmission scheme of ISDB-T Digital Terrestrial Broadcasting.
CW signal or built-in PN signal (Pseudo random signal) are output as a signal to which OFDM modulates.
Because of a small, light structure, this is best for the signal generator for the maintenance such as the relay station.
Reception margin measuring equipment
ISDB-T MARGIN CHECKER
MODEL 5283
This equipment can measure the reception C/N,C/N margin and equivalent C/N of received Digital Terrestrial Broadcasting signal in a short time by using a newly developed method for measuring algorithms.
The reception channel covers all channels of 90-770MHz.
The popular model (Model No. 5284) is also available. It does not have the equivalent C/N measuring functions and LAN terminals.
It was developed in conjunction with NHK.
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