Triax MCT 049B, User Manual

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The appliance displays the level of the Video carrier wave and the C/N ratio.
11.4.3 Thresholds
Predefined thresholds are used to assess if the measurement is pertinent.
Standard Min Max
Terrestrial analog TV 57 74
DVB-C/C2 57 74
DVB-T/T2 35 70
DAB-DAB+ 35 70
FM, Carrier 50 66
Satellite analog TV 47 77
DVB-S, DSS 47 77
DVB-S2 47 77
min threshold max threshold
11.5 Digital measurements
In digital measurement mode, in addition to the RF level and to the C/N here above, the appliance also dis-
plays the various BER (Bit Error Rate), the PER (Packet Error Rate) and the MER (Modulation Error Ratio)
under DVB-T/T2/T2Lite, DVB-C/C2, DVB-S/S2 or DSS.
You also get the LKM:x.xdB (Link Margin) specification.
This expression in dB is the difference between the measured MER and the limit MER before disconnection
of the image:
it’s the security available before disconnection
.
“Sync ?”
displayed on screen means that the signal is absent or unlocked; check its
presence, the modulation parameters, the presence of remote power supply and the LNB
and DiSEqC parameters under satellite band.
The sign < before a value or error rate shows that there is no error but that 10 -X bits have
been tested (i.e. <10 -8 means that 10 8 bits have been tested).