Installation Requirements And Specifications For Wellness Tv Machines; Digital Signal - Technogym Synchro Excite 500SP Service Maintenance Manual

5.2. INSTALLATION REQUIREMENTS AND SPECIFICATIONS
FOR WELLNESS TV MACHINES
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.
T
HE VALUES IN THE FOLLOWING TABLES MUST BE MEASURED DIRECTLY ON THE ANTENNA INLET
CONNECTOR OF THE MACHINE
ATTENTION: 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 FM 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

Level
Higher than -65 dBm
CH B.E.R. < 10
Quality
Or
C/N (Carrier to Noise ratio)
Modulation type 16 QAM: > 13 dB
Modulation type 64 QAM: > 23 dB
Level
Higher than -65 dBm
CH B.E.R. < 10
Quality
or
C/N (rapporto Carrier to Noise) > 23 dB
Level
Higher than -65 dBm
CH B.E.R. < 10
Quality
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.
Pagina 5.2
SYNCHRO EXCITE Class & Trend: Service & maintenance manual - rev. 2.0
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DVB-T
(44 dBµV) (-16 dBmV)
-3
(Channel Bit Error Rate)
ATSC
(44 dBµV) (-16 dBmV)
-3
(Channel Bit Error Rate)
ISDB-T
(44 dBµV) (-16 dBmV)
-3
(Channel Bit Error Rate)