Technogym EXCITE Run 500, Руководство по техническому обслуживанию

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RUN EXCITE-2008: Service & Maintenance Manual - rev. 1.3
Page 5.2
5.2. SPECIFICATIONS AND REQUIREMENTS TO INSTALL A
WELLNESS TV MACHINE
You can find below the data useful for antenna technician, in order to check if the antenna signal is
suitable for Excite Wellness TV machines.
THE VALUES IN THE FOLLOWING TABLES MUST BE MEASURED DIRECTLY
ON THE ANTENNA INLET CONNECTOR OF THE MACHINE.
WARNING: If the machine is not connected to a terrestrial antenna—or if it is but the
antenna signal line is interrupted by devices such as TV distribution units, modulators,
etc… The machine will not be able to receive a usable antenna signal for radio channel
tuning.
RADIO SIGNAL: On machines with Digital TV receiver, it is possible only the tuning of
the digital band and not the analogue one.
5.2.1. DIGITAL SIGNAL
DVB-T
Level
Higher than -65 dBm
(44 dBµV) (-16 dBmV)
Quality CH B.E.R. < 10
-3
(Channel Bit Error Rate)
Or
C/N (Carrier to Noise ratio)
Modulation type 16 QAM: > 13 dB
Modulation type 64 QAM: > 23 dB
ATSC
Level
Higher than -65 dBm
(44 dBµV) (-16 dBmV)
Quality CH B.E.R . < 10
-3
(Channel Bit Error Rate)
or
C/N (rapporto Carrier to Noise) > 23 dB
ISDB-T
Level
Higher than -65 dBm
(44 dBµV) (-16 dBmV)
Quality CH B.E.R . < 10
-3
(Channel Bit Error Rate)
or
C/N (rapporto Carrier to Noise)
Modulation type 16 QAM: > 13 dB
Modulation type 64 QAM: > 23 dB
Regarding the quality of the signal, it’s more relevant the CH.B.E.R. value instead of the
C/N.