Dmb-2038 Atsc Modulator

These DMB-2038 ATSC Modulator adopts advanced baseband processing and up-conversion technology, and constant-temperature crystal oscillator, with which the frequency stability reaches to 0.1PPM. It conforms to ATSC A.53 standard, with high-quality RF signal output. It also integrates baseband processing technology of linear and non-linear digital pre-distortion (DPD), to improve adjacent channel power ratio (ACPR) by over 10dB. Perfect automatic protection mechanism, redundancy backup function, and support of centralized management of NMS network management software, make the device to be applied widely to ATSC digital broadcasting system constructions.
SPECIFICATIONS
TRANSPORT STREAM INPUT AND OUTPUT
MPEG TS & SMPTE 310M Input
2* ASI input, support of backup
Packet frame: 188/204 bytes
Bit rate: a 19.393Mbps
2* SMPTE 310M input, support of backup
Interface: BNC, 75IC
RF Output
Frequency range: 40~960MHz successionally adjustable, in 1Hz steps
Frequency stability: 0.1PPM
RF output level: -26~3dB successionally adjustable, in 0.1dB steps
Signal stability: A 0.1dB
MER: a Y42dB
Shoulder: a Y48dB
Spurious: a Y50dB
Interface: N, 50IC
MODULATION
ATSC Modulation
Standard: ATSC A.53
Constellation: 8VSB
Bandwidth: 6MHz
CAPABILITY OPTION
GPS Reference Clock
1* 10MHz reference clock input
1* 1PPS reference clock input
Linear/Non-linear DPD
Adaptive digital pre-distortion for 1* RF input interface
Non-linear DPD: able to improve ACPR by over 10dB