Atsc (8Vsb) Measurement - ADInstruments S7200 Operation Manual

AD INSTRUMENTS S7200 TV Signal Analyzer Operation Manual

6.5. ATSC (8VSB) measurement

S7200 support ATSC (8VSB) signal measurement option, ATSC (8VSB) option is an
hardware option, need install a PCB.
For 8VSB signal, S7200 provide the follow measurement functions : average power,
constellation diagram, eye diagram, digital HUM, spectrum mask. The digital hum
main focus on cable transmission 8VSB signal.
If S7200 want to demodulate 8VSB signal, must setup the follow parameters :
The pilot position : other measurement instrument maybe setup this parameters,
but S7200's program automatic judgement this parameter, don't need user setup
this parameters. The pilot position can be set to the left (low) side of the spectrum
or be set to the right (high) side of the spectrum.
Center frequency : the carrier center frequency
Modulation type : 8VSB
Symbol rate : 10.762MS/s
If all parameters was setup right and the signal no problem, the S7200 can
correctly demodulate 8VSB signal.
Figure 6-26 8VSB Average Power Measurement
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