Blonder tongue AQT8-IP, Руководство пользователя

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19 AQT8-QAM/IP
User Manual
Actual Data Rate (Mbps): indicates the actual input data rate received from the content provider.
Input Number: indicates the physical RF input the program is selected from.
Input Prog.#: indicates the program number selected by the user (the program number is assigned by the content
provider).
Output Prog.#: indicates the user-selectable MPEG output program number - duplicates are not allowed within the
same IP output.
Short Name: indicates the user-selectable name of the program - duplicates are not allowed. The program name
may have up to 7 characters.
SNR: indicates the Signal-to-Noise Ratio of the input RF
channel.
Use this only as a reference for the received input signal
quality. This may not accurately reflect the output
picture quality as digital signals are more precisely
categorized by the modulation error rate (MER), of
which SNR is just one component.
RF Chan. :
indicates the channel number and center
frequency the port is tuned to.
TS Rate (Mbps): indicates the incoming transport stream
rate as provided by the content provider. Maximum
values allowed by relevant standards are:
19.4 Mbps for over-the-air transmission.
38.8 Mbps for transmission over cable.
Figure 6.2 - "Main > Status" Screen
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6.2 "Main > Status" Screen (continued)
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Modulation Poor Marginal Acceptable
Auto QAM <28 =>28 & <31 =>31
QAM 256B <28 =>28 & <31 =>31
QAM 64B <22 =>22 & <25 =>25
QAM 256A <28 =>28 & <31 =>31
QAM 128A <25 =>25 & <28 =>28
QAM 64A <22 =>22 & <25 =>25
QAM 32A <19 =>19 & <22 =>22
QAM 16A <16 =>16 & <19 =>19
8VSB <17 =>17 & <19 =>19
SNR (dB) Thr
eshold
Green=Acceptable, Yellow=Marginal, Red = Poor Input
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