一臺(tái)多制式dtv(數(shù)字電視)信號(hào)發(fā)生器,本機(jī)一臺(tái)即可應(yīng)對(duì)日本、中國(guó)、美國(guó)、歐州、巴西等世界各國(guó)的數(shù)字電視(包括地面、有線(xiàn)、衛(wèi)星),使用方式為選擇其中一個(gè)制式加以輸出。
功能特點(diǎn):設(shè)備本身具有ts流文件播放功能,集碼流發(fā)生器和調(diào)制器于一體,無(wú)需外加ts流信號(hào)源輸出頻率從47~3000mhz,*覆蓋vhf、uhf電視頻道rf輸出電平連續(xù)可變,可變范圍(qam)-31.5 ~ 0dbm、(ofdm)-34.5 ~ -3dbm,(增加電頻輸出選件可達(dá)到-11dbm)此功能可以很好的測(cè)試接收機(jī)的靈敏度支持制式有地面:dvb-t/t2,atsc,isdb-t,dtmb
有線(xiàn):dvb-c/c2,j.83b
衛(wèi)星:dvb-s/s2,isdb-s
一體化設(shè)計(jì),外接鼠標(biāo)鍵盤(pán)顯示器即可設(shè)置參數(shù),操作更方便主要應(yīng)用:數(shù)字電視標(biāo)準(zhǔn)信號(hào)發(fā)生器機(jī)頂盒與一體機(jī)研發(fā),性能檢測(cè)及生產(chǎn)測(cè)試用信號(hào)源廣播電視傳輸系統(tǒng)模擬,演示、展會(huì)、電器賣(mài)場(chǎng)等dtv 芯片開(kāi)發(fā)(調(diào)諧器/解碼)訂貨信息型號(hào)
規(guī)格說(shuō)明
jh5500a
2u多制式數(shù)字電視信號(hào)發(fā)生器主機(jī)(標(biāo)配包含dvb-t/c,atsc,j.83b)
optin-01
dtmb輸出選件
optin-02
dvb-t2輸出選件
optin-03
isdb-t輸出選件
optin-04
dvb-s/s2輸出選件
optin-05
dvb-c2輸出選件
optin-06
isdb-s輸出選件
optin-07
-110dbm電頻輸出選件
產(chǎn)品規(guī)格rf技術(shù)參數(shù)
連接頭
75ω bnc
頻率范圍
(uhf/vhf電視)47~862mhz
頻率步進(jìn)
100khz
頻偏
±1ppm
輸出電平
(qam)-31.5 ~ 0dbm、(ofdm)-34.5 ~ -3dbm,
±1db,zui小步徑0.5dbm
帶外抑制
>50db
調(diào)制誤碼率mer
≈38db(qam)
≈40db(ofdm)
ssb噪聲相位
<-90dbc @ 10 khz
反射損耗
>15db
rf 信噪比
典型值44db@ 474 mhz
atsc 規(guī)格參數(shù)
標(biāo)準(zhǔn)
atsc a/53e
前向糾錯(cuò)fec
2/3格碼+rs(207,187)
調(diào)制方式
8vsb、16vsb
視頻編碼
mepg-2
音頻編碼
dolbyac-3
信息碼率
19.39mb/s
信道帶寬
6mhz
isdb-t規(guī)格參數(shù)
標(biāo)準(zhǔn)
arib std-b31
內(nèi)糾錯(cuò)碼率
1/2, 2/3, 3/4, 5/6, 7/8
星座圖
qpsk, 16-qam, 64-qam
載波數(shù)
2k, 4k或8k
防護(hù)間隔
1/4, 1/8, 1/16, 1/32
帶寬
6mhz
廣播類(lèi)型
支持 1segment tv 和 13segment tv
dvb-t/h規(guī)格參數(shù)
標(biāo)準(zhǔn)
etsi en300744
內(nèi)糾錯(cuò)碼率
1/2, 2/3, 3/4, 5/6, 7/8 可選
星座圖
qpsk, 16-qam, 64-qam
分級(jí)
16-qam和64-qam星座圖,a=1,2或4
ifft
2k/8k mode可選
防護(hù)間隔
1/4, 1/8, 1/16, 1/32可選
mfn網(wǎng)絡(luò)模式,帶寬
8mhz、7mhz和6mhz可選
dvb-t2規(guī)格參數(shù)
標(biāo)準(zhǔn)
en 302 755
帶寬
10mhz、8mhz、7mhz、6mhz、5mhz、1.7mhz可選
調(diào)制方式
qpsk、16qam、64qam、256qam
i/q 格式
float32, int16, text
fet
1k、2k、4k、8k、16k、32k
dvb-c規(guī)格參數(shù)
標(biāo)準(zhǔn)
en 300 429
符碼率
1~8msps
星座圖
可選調(diào)制方式 16,32,64,128,256 qam
dtmb規(guī)格參數(shù)
標(biāo)準(zhǔn)
gb 20600-2006
內(nèi)糾錯(cuò)碼率
0.4、0.6、0.8
星座圖
4-qam-nr、4-qam 、16-qam 、32-qam 、64-qam
卷積交織
il_1( b=54, m=240), il_2( b=54, m=720)
保護(hù)間隔
pn420、pn945
帶寬
帶寬5、6、7、8 mhz
qam-b規(guī)格參數(shù)
標(biāo)準(zhǔn)
itu-t j.83 annex b
保護(hù)間隔
64-2,32-4,16-8,8-16,128-1,128-2等,
調(diào)制方式
64qam、256qam
滾降系數(shù)
0.18
符號(hào)率ms/s
5.0569410
信道帶寬
6mhz
物理參數(shù)
重 量:
10kg
體 積:
44 mm×530 mm×482 mm
操作溫度:
5~40℃
保存溫度:
-20~60℃
濕 度:
20~90%
供電電壓:
~220v±10% 50hz
額定功耗:
150w
digital tv signal generator adopts embedded system. it can run more stably and provide a more convenient operation. this equipment supports us standards of atsc(8vsb & qam-b),eu standards of dvb-t/h、dvb-t2 and dvb-c, japanese standards of isdb-t, chinese standards of dtmb(dmb-th,adtb-t).this is a 19" 2u standard unit . it can play ts code stream which can be digitally modulated and up-converted to the frequency of 47~862mhz and 950~2150mhz.
main features:integration of ts stream files playing, code stream generator and modulator, with no needs of external ts stream signal source. output signal frequency of 47~862mhz and 950~2150mhz,which compley covers vhf-and uhf-band tv channels and l-band salite digital tv channels .provide more stable performance by adopting embedded operation system.provide more convenient operation through an integrated design.19‘’2u standard unit.
main applications:digital tv standard signal generator the r&d, performance and production test of tv set top boxes and all-in-one machinessimulation and display of broadcast tv transmission system, exhibition and appliance storesdtv chip development(tuner/decoding)
standards implemented and met
atsc 8vsb
atsc a/53e
qam-b
itu-t j.83 annex b
dvb-c
en 300 429
dvb-t/dvb-h
en 300 744
dvb-t2
en 302 755
isdb-t
arib std-b31
dtmb
gb 20600-2006
dvb-s
etsi en 300 421
dvb-s2
ets 302 307
product specificationsspecifications of rf part
connector
75ω bnc
frequency range
(uhf/vhf)47~862mhz
(l-band)950~2150mhz
frequency step
100khz
frequency accuracy
±1ppm
output level
(qam)-31.5 ~ 0dbm,(ofdm)-34.5 ~ -3dbm,±1db,
minimumlevel step 0.5dbm
out-of-band rejection
>50db
met
≈38db(qam)
≈40db(ofdm)
ssb phase noise
<-90dbc @ 10 khz
reflection loss
>15db
rf snr
typical value: 44db@ 474 mhz
specifications of atsc
compliant
atsc a/53e
fec
2/3trellis code+ rs(207,187)
conslation
8vsb,16vsb
video coding
mepg-2
audio coding
dolbyac-3
code rate
19.39mb/s
channel bandwidth
6mhz
specifications of isdb-t
compliant
arib std-b31
code rate
1/2, 2/3, 3/4, 5/6, 7/8
conslation
qpsk, 16-qam, 64-qam
carrier number
2k, 4k or 8k
guard interval
1/4, 1/8, 1/16, 1/32
band width
6mhz
broadcast type
support 1segment tv and 13segment tv
specifications of dvb-t/h
compliant
etsi en300744
code rate
1/2, 2/3, 3/4, 5/6, 7/8
conslation
qpsk, 16-qam, 64-qam
grading
16-qam and 64-qam conslation map,a=1,2 or 4
ifft
2k/8k mode
guard interval
1/4, 1/8, 1/16, 1/32
mfn network model,band width
8mhz、7mhz、6mhz
specifications of dvb-t2
compliant
en 302 755
band width
10mhz,8mhz,7mhz,6mhz,5mhz,1.7mhz for your option
conslation
qpsk,16qam,64qam,256qam
i/q format
float32, int16, text
fet
1k,2k,4k,8k,16k,32k
specifications of dvb-c
compliant
en 300 429
symbol rate
1~8msps
conslation
16,32,64,128,256 qam
specifications of dtmb
compliant
gb 20600-2006
code rate
0.4,0.6,0.8
conslation
4-qam-nr,4-qam ,16-qam ,32-qam ,64-qam
convolution interleave
il_1( b=54, m=240), il_2( b=54, m=720)
guard interval
pn420、pn595、pn945
band width
5,6,7,8 mhz
specifications of qam-b
compliant
itu-t j.83 annex b
guard interval
64-2,32-4,16-8,8-16,128-1,128-2,etc
conslation
64qam,256qam
roll-off factor
0.18
symbol rate ms/s
5.0569410
bandwidth
6mhz
specifications of dvb-s/s2
compliant
etsi en300 421/etsi en302 307
conslation
qpsk,8psk,16apsk,32apsk
symbol rate
1~45 mbd
symbol rate precision
< ± 25 ppm
symbol rate step
< 50 mbd
physical parameter
weight
approx 10kg
dimensions
482(w)×380(d)×88(h)mm
operation temperature
5~40℃
storage temperature
-20~60℃
operation humidity
20~90%
power supply
~220v±10% 50hz
rated power consumption
< 300w