HHT3 Operators Manual
Specifications
Issue :No. 7b
Page : 7
Ref: HHT3-ASUM-7000
Copyright © 2018 IMT Ltd, trading as Vislink
Parameter
Specification
Frequency bands
1.3GHz to 10GHz (other frequency bands to special order)
Tuning range
400MHz nominal (modulation dependent, consult factory)
1.95GHz to 2.7GHz option
Frequency selection
Up-to 16 pre-set channels, or tuning in 1MHz, 0.5MHz or 0.25MHz
steps via front panel control
Noise figure and receiver threshold
Noise figure: 3dB typical, 4dB max.
Receiver threshold: -92dBm to BER 10-5 (nom. QPSK, ½ FEC, 1/32
Guard Interval)
Demodulation
DVB-T 2k
ISDB-T 2k, with time interleaving 110/220/440ms (option)
Demodulation Modes
QPSK, 16QAM, 64QAM
FEC: 1/2, 2/3, 3/4, 5/6, 7/8
Guard interval: 1/32, 1/16, 1/8, 1/4
Bandwidth
6, 7, 8MHz DVB-T
6, 7MHz ISDB-T
Data Rate
4.98 Mbit/s to 31.7Mbit/s
Decoding
4.2.0 and 4.2.2 broadcast quality video
Factory options:
-
MPEG2
-
H.264/MPEG4 and MPEG2, with automatic selection
Video outputs
Analogue Composite (CVBS), YUV and Y/C component
SDI HD SMPTE-292M (299M)
SDI SD SMPTE-259M (272M)
HDMI
ASI output
1 x DVB ASI, 188 /204 output but not if BNC is set to CVBS
Video Formats
1080i: 1920 x 1080, 25 and 29.5Hz
720p: 1280 x 720, 50 and 59Hz
480i (NTSC): 720 x 480 and 512
576i (PAL): 720 x 576 and 608
Latency
Automatic selection down to sub 1-frame (20ms), transmitter-encoding
profile dependent
Video screen
12 inch, LED, HD/SD, 16x9 plus 4x3 pillar box, daylight bright
Audio outputs
Digital: 2 Stereo SDI embedded
HDMI
Analogue: 2 x 2 Mono / 2 x 1 Stereo selectable
Decryption
BISS 1 and E, or AES256 (option)
Audio loudspeakers
2 x 1.5 Watt audio
User data output
Selectable in the range 1200 to 230,400 baud
Recording
SD Card recording option.
Compatible SD cards:
SDHC compatible
Formatted to FAT32
Max. 32GB
Approx. 30Hrs duration of H.264 with 8Gb card