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| GHM-J1 | GSM-J1 |
ISDB-T Modulator

GHM-J1

 


Features

• ISDB-T(ARIB STD-B31) Compliant transmiter for Digital Terrestrial Television
• No hierarchical transmission
• Configurable code Rates : 1/2, 2/3, 3/4, 5/6, 7/8
• QPSK/ 16 QAM/ 64 QAM symbol Mapping
• Configurable support for 4K and 8K FFT
• Configurable Guard Interval : 1/4, 1/8
• Support Channel Bandwidth 6MHZ
• MER >30 dB
• Carrier Suppression > 40 dB

Specification


Parameter Value
Source input ‧Input Channel : 1
‧Video : HDMI
‧Video System : 480i/p, 576i/p, 720p, 1080i/p
‧Audio : HDMI
Compression ‧Video : H.264 High profile level4.0
‧Video Resolution : 720p
‧Video Bit rate : 12Mbps MAX.
‧Audio : MPEG 1 Audio layer II (MP2) / AAC
‧Audio Bit rate : 192 ~ 256Kbit/S
‧DVB insertion tables : SDT, NIT
‧Editable field : SERVICE NAME , NIT VERSION
Modulation ‧Standard : ISDBT (ARIB STD-B31)
‧Constellation : QPSK, 16QAM, 64QAM
‧Guard Interval : 1/4, 1/8
‧Code Rate : 1/2, 2/3, 3/4, 5/6, 7/8
‧FFT Carrier Mode : 4K, 8K
‧Bandwidth : 6MHZ
RF Output ‧Type : 1 Multiplex ISDBT with a digital TV service
‧Frequency : 177 ~ 858 MHz
‧MER : 30dB, typically
‧Output level : 100 ±10dBuV
‧RF LEVEL ADJ : 0 dB ~ -30dB
‧Attenuation step : 1dB per step
Connections ‧HDMI IN : HDMI IN
‧HDMI OUT : HDMI PASS THROUGH
‧RF Output : 1 ISDBT RF output with type F female, 75 ohm
Power Supply 12V 1.0A ADAPTOR
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
Environmental for operating ‧Temperature : 5℃- 40℃
‧Relative Humidity : 80% @ 30℃



Genral Spec.




Brochure

Performance