SKD121X Encoding & Multiplexing Modulator is a device
that combines encoding, multiplexing and modulation. With 12 channels’ HD or SD input, one RF and one IP
output. The SKD121X is very easy to operate with many intelligent functions, such as, alarm
system, parameter import and export, and the abnormal reminder.
The left side of the chassis is equipped with a server-level cooling fan with automatic
temperature control system to adjust the speed, which can extend the life of the fan to ensure the normal heat
dissipation.
Characteristics:
12 HD or AV input
Optional MPEG2 or H.264 encoding
Synchronous RF and IP output
DVBC（J.83A、J.83B）、DVB-T output
Simple system settings, just adjust the frequency to the requirements, simplify system debugging
PC or Smartphone app operation support
3 powerful fans for cooling
Technical Parameters
Encoding parameters
|
HD(1.4a)
|
Video encoding
|
Encoding standard
|
H.264
|
|
Resolution
|
1920*1080_60P,1920*1080_50P;1920*1080_60i,
1920*1080_50i;1280*720_60p, 1280*720_50P
|
|
Bit rate
|
1-19.5Mbps
|
|
Audio
|
Encoding standard
|
MPEG1 Layer II AAC
|
|
Sampling Rate
|
48KHZ/44.1KHZ/32KHZ
|
|
Bit rate
|
384kbps
|
|
PSIP
|
MGT、CVCT、STT、RTT
|
Programmable program name,
pmt PID, Video PID, Audio PID
|
Modulation parameters
|
J.83A
|
Modulation standard
|
Annex A
|
|
Constellation
|
64QAM, 256QAM
|
|
MER
|
≥40dB
|
|
RF frequency range
|
50 – 1000 MHz Minimum
stepping 1KHz
|
|
Output electrical level
|
≥105dBuV （Adjustment range 0-20dB，stepping 0.5dB）
|
|
Out-of-band rejection
|
≥60
|
|
Symbol rate
|
5-6.900Msps
|
|
J.83B
|
Modulation standard
|
Annex B
|
|
Constellation
|
64QAM,256QAM
|
|
MER
|
≥40dB
|
|
RF frequency range
|
50 – 1000 MHz Minimum
stepping 1KHz
|
|
Output electrical level
|
≥105dBuV （Adjustment range 0-20dB，stepping 0.5dB）
|
|
Out-of-band rejection
|
≥60
|
|
Cable standard
|
HRC,IRC or STD
|
|
Symbol rate
|
5-6.900Msps
|
|
DVB-T
|
Modulation standard
|
DVB-T COFDM
|
|
Bandwidth
|
6/7/8MHz
|
|
Modulation constellation
|
QPSK, 16QAM, 64QAM
|
|
Code rate
|
1/2, 2/3, 3/4, 5/6, 7/8
|
|
Protection interval
|
1/32, 1/16, 1/8, 1/4
|
|
Transmission mode
|
8K
|
|
MER
|
≥36dB
|
|
RF frequency range
|
50 – 1000 MHz
Minimum stepping 1KHz
|
|
Output impedance
|
75Ω
|
|
Output electrical level
|
≥105dBuV （Adjustment range 0-31.5dB, stepping
0.5dB）
|
|
Out-of-band rejection
|
≥60dB
|
RF output
|
RF frequency range
|
50 – 1000 MHz
Minimum stepping 1KHz
|
|
Output electrical level
|
≥105dBuV （Adjustment range 0-20dB，stepping 0.5dB）
|
|
Out-of-band rejection
|
≥60dB
|
|
Output impedance
|
75Ω
|
IP output
|
One (UDP/RTP protocol)
output 12 unicast or multicast programs
|
Physical parameter
|
Dimension
|
180*122*30mm, 315g
|
|
Operating temperature,
humidity
|
-10℃-45℃、40%-70%
|
|
Storage temperature,
humidity
|
-40℃-70℃、40%-95%
|
