| HOME -->Product -->Digital Headend -->DVB-T HD Modulator -->GHM-T1 |
| | GHM-T1 | HC-T1 | HS-T1 | HV-T1 | |
GHM-T1
• DVBT only
• Single channel
• No hierarchical transmission
• Configurable convolution Rates
• QPSK/ 16 QAM/ 64 QAM symbol Mapping
• 2K/ 8K FFT
• Configurable Guard Interval : 1/4, 1/8, 1/16, 1/32
• Support Channel Bandwidth 6/7/8 MHz
• MER 35 dB, typically
• Carrier Suppression > 42 dB
| Source input | RF Output | |||
| Input Channel | 1 | Type | 1 Multiplex DVBT with adigital TV service | |
| Video System | 480i/p, 576i/p, 720p,1080i/p |
Frequency | 177 – 858 MHz | |
| MER | 35 dB, typically | |||
| Connections | Output level | 100 dBuV | ||
| RF Output | 1 DVBT RF output with type F female, 75 ohm | Digital Gain/ Attenuation |
+5 ~ -10dB | |
| Video | HDMI IN | Attenuation step | 1dB per step | |
| Audio, L/R | HDMI PASS THROUGH | |||
| Modulation | ||||
| Compression | Standard | DVBT (ETSI EN 300 744) | ||
| Video | H.264 High profilelevel3.2 | Constellation | QPSK, 16QAM, 64QAM | |
| Video Resolution | 720P | Guard Interval | 1/4, 1/8, 1/16, 1/32 | |
| Video Bit rate | 12Mbps Max. | Code Rate | 1/2, 2/3, 3/4, 5/6, 7/8 | |
| Audio | MPEG 1 layer II(MP2)AAC | FFT Carrier Mode | 2K, 8K | |
| Audio Bit rate | 192- 384 Kbit/S | Bandwidth | 6MHz, 7 MHz, 8MHz | |
| DVB insertion tables | SDT, NIT | Power Supply | 6W @ 5V | |
| Editable field | Service Name, / Transport-Stream_id, /network_id, original_newtork_id, / LCN/ NIT/Private Data specifier |
Display | LCD panel @ 2 x 16 characters (on front panel). | |
| Configuration | 6 Local keys on front panel :
‧OK Key : Select parameter, or menu ‧L / R Keys : Move menu, or characters ‧Up / down : Select value of the figure, or field ‧menu keys : Select menu |
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| Environmental foroperating | Temperature 5°C- 40°C Relative Humidity 80% @ 30°C |
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