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DSNG : |
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Rtronix has developed technically efficient and cost effective solution, using highly bandwidth efficient encoders, for the purpose of electronic News Gathering. The solution has been engineered on XVD
Encoders , which offer Real time compression at data rates from 500 kbps to 5 mbps using real time Video compression technology. The XVD’s patented Video Codec provides much higher performance and efficiency than other block based Video compression systems. The Video Codec optimized for the human visual system adds several unique features including Automatic scene change detection, Object Motion estimation and CBR/VBR bit control to improve Video Quality at dramatically lower data rates. The facility of VOIP is also provided in this system. The RF used in this system is also optimized through usage of low bandwidth carriers.
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Application Feature For DSNG Solutions :
- Spectrally efficient solution, utilizing less than 1MHZ carrier for news applications.
- Simple operator control. All devices can be controlled from the operational terminal.
- Carriers mount Antenna eliminates chassis fabrication and roof reinforcement
- High performance XVD encoders operating at very low data rates , resulting in broadcast quality
transmission with full resolution at a transport rate of 1.25 Mbps, the later resulting in a
total Bandwidth occupancy of 0.98MHz
- Latency less than 500 ms
- 2 Video Quality can be achieved with XVD Encoder rate 1000 kbps with spectral bandwith occupancy
of 982khz (3/4 FEC,QPSK)
- As the solution is IP oriented, voice connectivity between remote locations and the Studio can be achieved VOIP solutions. The eliminates RF back off in the event of separate carrier for Voice connectivity.
- The IP interface eliminates Encryption of the signals, which is mandatory as per the MIB guidelines.
- Resultant RF sizing is also optimized through usage of low bandwidth carriers.
- Low weight and compact BUC’s resulting in direct feed mount of the RF units, thereby reducing the RF losses.
- Very low power consumption. Battery backup for over 4 hours due to low power consuming elements.
- The system is IP based and hence the transmission is protected from unauthorized access.
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Technical Specifications : |
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| Antenna Systems |
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Antenna Type |
1.2m Auto acquisition antenna |
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Material |
GRP / Carbon Fibre |
| Tx. Freq. |
13.75-14.5 GHz |
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Rx. Freq. |
10.95-12.75GHz |
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MidBand gain |
Tx=43.2dBi, Rx=42.0dBi |
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VSWR |
1:30:1 |
| Encoder |
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| Video Input |
S-Video, CV |
| Video Encoding |
Proprietary XVD video codec;
Automatic Scene Change
Detection,
Object Motion Estimation |
| Audio Encoding |
Proprietary XVD audio codec |
| Data Rate |
S-Video / CV------32Kbps
to 2.2 mbps
SDI -------500 kbps to 5 mbps |
| Audio Bitrate |
S-Video / CV------16Kbps
to 64Kbps
SDI -------32 kbps to 128 kbps |
| Network Interface |
One 10/100 Mbps Ethernet port RJ45 |
| Network Protocol Output |
XVD-SD over TCP, RTP, RTP Multicast |
| Video Signal |
NTSC or PAL |
| Modem : |
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| Transmit IF frequency Range |
950 to 1750 MHz |
| Receive IF frequency
Range |
950 to 1900 MHz |
| Transmit output power
(50 ohm N-type) |
+5 to -35dBm |
| Receive Carrier level
(75 ohm F-type) |
-20 to -70dBM |
| Data bit rate |
3.4kbps to 5Mbps |
Modulation
& demodulation
(Optional) |
Programme for QPSK
8PSK and 16QAM |
| BUC : |
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| RF-Output Frequency |
13.75 to 14.5 Ghz |
| IF-Input Frequency |
950 to 1700 MHz |
| RF-Output characteristic |
Output power +10dbm |
| SSPA : |
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| Power |
16 - 80 watts |
| Output P1 dB(dBm) min |
42 49dBm |
| LNB : |
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| RF Freq |
10.95 to 11.70 GHz |
| L.O Freq |
10 GHz |
| Local Stability |
+/- 10ppm |
| IF Freq |
950 to 1700 Mhz |
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Block Schematic : |
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Links Directory - Add your Website |
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