Hides DC-101 User manual

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DC-101
Quick Installation Guide
PACKAGE CONTENTS 2
POWER ON 3
CONNECT TO A RECEIVER 4
CUSTOM CONFIGURATION 5
HOW TO CONFIGURE DC-101 DTV CAM 5
SAMPLE SETTINGS IN “DVBT_CONFIG” 5
TRANSMISSION PARAMETERS DESCRIPTION
THE CHANNEL DATA RATE MUST BE LARGER THAN THE VIDEO ENCODING BIT RATE. 7
TS AND VIDEO PARAMETERS DESCRIPTION 8

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Package Contents
DC-101 Camera and holder
Micro USB connector power cable
 MCX to Female F connector
DVB-T RF
Video output
5 V DC-in

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Power on
Connect the USB cable to PC/Notebook USB port.
Alternatively you may connect it to a 5V DC USB power adaptor or
Note: 5V DC USB power adaptor is not included in standard package.

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Connect to a receiver
1. Connect the video RF output to a coaxial cable (or an antenna). ADVB-T receiver can be
either DVB-T TV, DVB-T STB or DVB-T USB receiver dongle.
2. By default, the output RF power of DC-101 is about +5 dBm (113 dBuV) typically, and if it’s wired
connection instead of an antenna and the coaxial cable is shorter than 50 M, the power might
be too high for the receiver. In such a case, please set lower RF gain. Refer to the following
instructions for custom configurations.

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Custom Configuration
How to configure DC-101 DTV CAM
When DC-101 DTV CAM is powered on, it will check the existence of the file “\System\ dvbt_config” on
Micro SD card. If the file is found, it will update the system configurations according to the settings in the
file.
The following sections describe the file format in details.
Sample Settings in “dvbt_config”
Frequency : [803000]
Bandwidth : [6000]
Constellation : [0] //0:QPSK, 1:16QAM, 2:64QAM
CodeRate : [0] //0:1/2, 1:2/3, 2:3/4, 3:5/6, 4:7/8
GuardInterval : [3] //0:1/32, 1:1/16, 2:1/8, 3:1/4
FFT : [2] //2:2K, 8:8K
Gain : [6]
SIPSI_Table_Duration : [0]
Micro SD card slot

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Resolution : [3] //1:1280x720, 2:720x576 3:720x480
PTSPCR_Interval : [10]
VQ : [Middle]//High, Middle, Low
FlickerHz : [60]//50 or 60Hz
Transmission Parameters Description
Parameter Description Default
Frequency ccHDtv DTVCAM frequency in KHz.
Range: 50000KHz ~ 950000KHz
[177000]
Bandwidth ccHDtv DTVCAM bandwidth in KHz.
Options: 2000, 3000, 4000, 5000, 6000, 7000 and 8000KHz.
[6000]
Constellation ccHDtv DTVCAM constellation options.
0: QPSK
1: 16QAM
[0]
CodeRate ccHDtv DTVCAM code rate options.
0: 1/2
1: 2/3
2: 3/4
3: 5/6
4: 7/8
[4]
GuardInterval ccHDtv DTVCAM guard interval options.
0:1/32
1:1/16
2:1/8
3:1/4
[1]
FFT ccHDtv DTVCAM FFT options.
2: 2K
8: 8K
[2]
Gain Software adjusts RF output gain.
Range: -25 ~ +5
[3]
The channel capacity (maximum data bit rate or throughput) varies depending on the transmission
parameters.

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The maximum date bit rate can be calculated as below.
Tbandwidth = {2000,000, 3000,000, 4000,000, 5,000,000,6,000,000, 7,000,000, 8,000,000} in Hz
for 2~8MHz
Tcode_rate = {1/2, 2/3, 3/4, 5/6, 7/8}
TConstellation = {2, 4, 6} <- QPSK = 2, 16QAM=4, 64QAM = 6
TGuardInterval = {4/5, 8/9, 16/17, 32/33}, 1/4 = 4/5, 1/8 = 8/9, 1/16 => 16/17, 1/32 => 32/33}
2K/8K mode does not matter
Maximum bit rate = 1512 / 2048 * 188 / 204 * 64 / 56 * TBandwidth * Tcode_rate * TConstellation *
TGuardInterval (bps)
= 423 / 544 * TBandwidth * Tcode_rate * TConstellation * TGuardInterval (bps)
Refer to the table shown below.
The channel data rate MUST be larger than the video encoding bit rate.
BW
BWBW
BW
Guard
Interval
Code
Rate
QPSK
TS bit rate
16-QAM
TS bit rate
BW
BWBW
BW Guard
Interval
Code
Rate
QPSK
TS bit rate
16-QAM
TS bit rate
5M 1 / 4 1 / 2 3110294 6220588 6M 1 / 4 1 / 2 3732353 7464706
5M 1 / 4 2 / 3 4147059 8294118 6M 1 / 4 2 / 3 4976471 9952941
5M 1 / 4 3 / 4 4665441 9330882 6M 1 / 4 3 / 4 5598529 11197059
5M 1 / 4 5 / 6 5183824 10367647 6M 1 / 4 5 / 6 6220588 12441176
5M 1 / 4 7 / 8 5443015
10886029 6M
1 / 4 7 / 8 6531618 13063235
5M 1 / 8 1 / 2 3455882 6911765 6M 1 / 8 1 / 2 4147059 8294118
5M 1 / 8 2 / 3 4607843 9215686 6M 1 / 8 2 / 3 5529412 11058824
5M 1 / 8 3 / 4 5183824 10367647 6M 1 / 8 3 / 4 6220588 12441176
5M 1 / 8 5 / 6 5759804
11519608 6M
1 / 8 5 / 6 6911765 13823529
5M 1 / 8 7 / 8 6047794
12095588 6M
1 / 8 7 / 8 7257353 14514706
5M 1 / 16 1 / 2 3659170
7318339 6M
1 / 16 1 / 2 4391003 8782007
5M 1 / 16 2 / 3 4878893 9757785 6M 1 / 16 2 / 3 5854671 11709343
5M 1 / 16 3 / 4 5488754 10977509 6M 1 / 16 3 / 4 6586505 13173010
5M 1 / 16 5 / 6 6098616
12197232 6M
1 / 16 5 / 6 7318339 14636678
5M 1 / 16 7 / 8 6403547
12807093 6M
1 / 16 7 / 8 7684256 15368512
5M 1 / 32 1 / 2 3770053
7540107 6M
1 / 32 1 / 2 4524064 9048128
5M 1 / 32 2 / 3 5026738 10053476 6M 1 / 32 2 / 3 6032086 12064171
5M 1 / 32 3 / 4 5655080 11310160 6M 1 / 32 3 / 4 6786096 13572193
5M 1 / 32 5 / 6 6283422
12566845 6M
1 / 32 5 / 6 7540107 15080214
5M 1 / 32 7 / 8 6597594 13195187 6M 1 / 32 7 / 8 7917112 15834225

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7M 1 / 4 1 / 2 4354412 8708824 8M 1 / 4 1 / 2 4976471 9952941
7M 1 / 4 2 / 3 5805882 11611765 8M 1 / 4 2 / 3 6635294 13270588
7M 1 / 4 3 / 4 6531618 13063235 8M 1 / 4 3 / 4 7464706 14929412
7M 1 / 4 5 / 6 7257353 14514706 8M 1 / 4 5 / 6 8294118 16588235
7M 1 / 4 7 / 8 7620221
15240441 8M
1 / 4 7 / 8 8708824 17417647
7M 1 / 8 1 / 2 4838235
9676471 8M
1 / 8 1 / 2 5529412 11058824
7M 1 / 8 2 / 3 6450980 12901961 8M 1 / 8 2 / 3 7372549 14745098
7M 1 / 8 3 / 4 7257353 14514706 8M 1 / 8 3 / 4 8294118 16588235
7M 1 / 8 5 / 6 8063725
16127451 8M
1 / 8 5 / 6 9215686 18431373
7M 1 / 8 7 / 8 8466912
16933824 8M
1 / 8 7 / 8 9676471 19352941
7M 1 / 16 1 / 2 5122837
10245675 8M
1 / 16 1 / 2 5854671 11709343
7M 1 / 16 2 / 3 6830450 13660900 8M 1 / 16 2 / 3 7806228 15612457
7M 1 / 16 3 / 4 7684256 15368512 8M 1 / 16 3 / 4 8782007 17564014
7M 1 / 16 5 / 6 8538062
17076125 8M
1 / 16 5 / 6 9757785 19515571
7M 1 / 16 7 / 8 8964965
17929931 8M
1 / 16 7 / 8 10245675 20491349
7M 1 / 32 1 / 2 5278075
10556150 8M
1 / 32 1 / 2 6032086 12064171
7M 1 / 32 2 / 3 7037433 14074866 8M 1 / 32 2 / 3 8042781 16085561
7M 1 / 32 3 / 4 7917112 15834225 8M 1 / 32 3 / 4 9048128 18096257
7M 1 / 32 5 / 6 8796791
17593583 8M
1 / 32 5 / 6 10053476 20106952
7M 1 / 32 7 / 8 9236631 18473262 8M 1 / 32 7 / 8 10556150 21112299
TS and Video Parameters Description
Parameter Description Default
SIPSI_Table_Duration Duration in minutes.
0: SI/PSI table always be sent
N: After N minutes, TS SI/PSI table will not be sent. And the
TV system could only scan the DTVCAM channel in this
period.
[0]
Resolution 720P, 576P and 480P video resolutions are supported.
1: 1280x720
2: 720x576
[1]

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3: 720x480
PTSPCR_Interval Adjust TS PTS and PCR interval in frames. It is trade-off
with video latency and video smooth.
[6]
VQ Video quality with High, Middle and Low level. The video
encoding bit rate is depended on the Resolution and VQ.
HD 720P (1280x720) Video Encoding Bit Rate:
High: 6.8M bps
Middle: 4.8M bps
Low: 2.8M bps
SD 480P/576P (720x480/576) Video Encoding Bit Rate:
High: 4.2M bps
Middle: 3.2M bps
Low: 2.2M bps
[High]