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| Product Name: |
Adjacent Channel Modulator
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| Supply Ability: |
3000 |
| Related proudcts |
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| Specifications |
TELECAST /DSM750-1 |
| Price Term: |
FOB |
| Port of loading: |
SHENZHEN OR SHANGHAI |
| Minimum Order |
10 |
| Unit Price: |
340.00 USD |
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Feature
Digital display of output channel.
Designed by adjacent channel transmission standard, no interference between adjacent channels;Input and output of Video/Audio intermediate frequency signal used for scrambling subscription CATV system.
Oscillator using unique phase-lock (PLL) circuit makes phase noise extremely low, makes video clear and stable, creates auto amplitude-fixed RF circuit and causes head-end system stable and reliable.
Using dual-balancing diode modulation with fine linearity and low noise, fine indexes including signal to noise ratio (S/N), carrier noise rate (C/N), differential gain (DG) and differential phase (DP) as good as those of import slap-up modulators.
19-inch standard structure, independent power supply, flexible fit out, elegant appearance, firm structure, nice electromagnetism shield and convenient operation and maintenance.
Specifications
Video input amplitude
1Vp-p (whole TV signal , positive)
Video input impedance
75W (lotus flower plug seat)
Audio input amplitude
0.775V
Audio input impedance
10KW (Imbalance lotus flower plug seat)
Degree of video modulation signal
¡Ý87.5%
Video flatness
¡Ü?.75dB
Phase of differential coefficient
¡Ü2?
Gain of differential coefficient
¡Ü2%
Delay difference of color or light
¡Ü35ns
Video signal to noise ratio
¡Ý58dB (unweighted)
¡Ý64dB (weighted)
Output frequency
45¡«860MHz
Frequency accuracy
¡Ü1KHz (VHF)
¡Ü2KHz (UHF)
Total frequency deviation
¡Ü5KHz (VHF)
¡Ü10KHz (UHF)
Output level of video carrier
¡Ý115dBmV
Adjusting range of output level
0¡«15dB
Audio carrier power to video carrier power ratio
?0¡«?0dB
Carrier to noise ratio (C/N)
¡Ý65dB (fc?MHz)
¡Ý70dB (fc?MHz)
¡Ý80dB (fc?6MHz)
RF output impedance
75W
Output suppression
¡Ý65dB
Error of video/audio carrier interval
¡Ü?.5KHz
Maximal partial frequency of audio
?0KHz
Pre-emphasis of audio
50ms
Audio flatness
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| Company: |
TELE TECHNOLOGY (SICHUAN) CO.,LTD
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| Contact: |
Mr. FEI PU |
| Address: |
2F£¬CHUANDING BUILDING£¬NO.119£¬SOUTH LONGZHOU STREET£¬ |
| Postcode: |
610061 |
| Tel: |
+86-28-84511537,13330986659 |
| Fax: |
+86-28-84512794 |
| E-mail: |
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