Motorola DCH6416 ユーザーズマニュアル

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The In-Band Status fields are:  

Mode 

The values displayed on the OSD are:  
ANALOG — analog (NTSC) channel 
64 QAM — 64 QAM digital channel 
256 QAM — 256 QAM digital channel 

Carrier Lock 

Indicates whether the in-band receiver is locked to the carrier. If a digital 
carrier is not present, it indicates the carrier is not locked: 

 OSD 

Front 

Panel 

Description 

 YES 

L 

Carrier 

locked 

 

NO 

U 

Carrier not locked 

PCR Lock 

Indicates whether the in-band receiver is locked to the current program clock 
reference for a digital video service on the specified tuner. If a digital carrier is 
not present, it indicates the PCR is not locked. 

Data 

Indicates whether data is being carried on the in-band stream. The indicators 
cover all packet processors regardless of the stream they are monitoring: 

 

OSD 

Front Panel  

Description 

 

YES 

On 

In-band data detected within last 5 seconds 

 

NO 

Off 

In-band data not detected within last 5 seconds 

Frequency 

The analog frequency is displayed as the picture carrier. The In-band 
frequency is center RF carrier frequency tuned for the digital service on the 
specified tuner. The frequency is displayed in MHz in xxxx.xxx format and 
ranges from 54 to 860 MHz. 

SNR 

When carrier lock has been established, displays an estimate of the carrier 
signal-to-noise ratio in dB, with an explanation: 
GOOD—Good value 
FAIR—Marginal signal level, check the signal 
POOR—Unusable signal 
INVALID—Invalid SNR value  

5 Second Error Counts  Indicates the number of correctable and uncorrectable digital multiplex errors, 

up to 9999. It is updated every 5 seconds and reset each time the DCH6416 
is power cycled or another digital multiplex is tuned. The maximum value 
displayed is 9999, even if there were more than 9999 errors. 

IB diagnostic 
indicator

Data activity 
indicator

Carrier lock indicator 
(L = locked, U = unlocked