CARDIO WAVE EXCITE Class & Trend: Service & maintenance manual- rev.2.0
Pagina 5.3
5.3.
RECOMMENDED ANTENNA SIGNAL REQUIREMENT
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 FM SIGNAL: On machines with Digital TV receiver, it is possible only the
tuning of the digital band and not the analogue one.
5.3.1.
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.
Summary of Contents for CLASS & TREND
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