HV-122 is a 1080 Full HD diversity receiver box which receives and decodes DVB-T (ETSI EN 300 744) HD/SD terrestrial broadcast signals. It features the video output of HDMI and Composite (CVBS) for DVB-T.
HV-122 is designed with 2-way diversity antenna reception, which can enhance high mobility support and mitigate multi-path effect.
Besides remote controller, HV-122 can be configured and controlled thru its UART port by an external host.
HV-122 can decode the mux’ed UART data in received streams and output thru its local UART port.
Besides standard TV channel bandwidth (5/6/7/8MHz), HV-122 can tune 1/1.5/2/2.5/3/4 MHz bandwidth channels.
Depending on the model options, HV-122 supports standard TV-band (170-860MHz), 2.4G-band (2100~2550MHz), All-band (170~2700MHz)

 

Features

• Standalone Digital DVB-T receiver
• Support 1080 Full HD H.264 and MPEG2 decoding
• Frequency Band Support
• HV-122-TV 170~860MHz
• HV-122-2.4G 2100~2550MHz
• HV-122-A  170~2700MHz ( sensitivity is ~20dB less at 170~700MHz)
• Two Antenna SMA connectors
• Composite video output/ Stereo Analog (L/R) output
• Digital HDMI audio and video output
• On-Screen Display Menu
• Automatic or manual channel scan
• 1/1.5/2/2.5/3/4/5/6/7/8 MHz Bandwidth support
• 12V active antenna supported (up to 500mA)
• Demultiplex UART data in received TS transmitted by Hides transmitter.
• Decrypt encrypted TS data transmitted by Hides transmitter.

• UART control interface for external host


• Order Information：

Model Number	RF-in filter for >1GHz band	Frequency Band Supported
HV-122	N/A	170~862 MHz
HV-122-2.4G	2.4G Saw Filter*	2100~2550MHz*
HV-122-A	N/A	170~2700MHz**
*There is a saw filter in the RF front end. The saw filter limits the reception range but minimize ACI (adjacent channel interference) **When the saw filter removed, full band range is supported but poorer ACI. The sensitivity is ~20dB less at 170~700MHz.

 

Specifications

RF Inputs
Frequency	HV-122: 170~862 MHz
	HV-122-2.4G: 2100~2550MHz*
	HV-122-A: 170~2700MHz**
Bandwidth	Single Antenna	1/1.5/2/2.5/3/4/ 5/6/7/8 MHz
	Diversity Antenna	2.5/3/4/ 5/6/7/8 MHz
Demodulation	COFDM (ETSI EN 300 744 DVB-T)
FFT mode	2K, 4K, 8K
Constellation	QPSK, 16QAM, 64QAM
Guard interval	1/4, 1/8. 1/16, 1/32
Inner coding rate	1/2, 2/3, 3/4, 5/6, 7/8
RF  Performance (single antenna only) Pmax >+5 dBm Pmin @ FFT:2K, 16QAM,CR:2/3 GI:1/8 Bandwidth Sensitivity 1 MHz <-99 dBm 1.5 MHz <-98 dBm 2 MHz <-96 dBm 2.5 MHz <-95 dBm 3 MHz <-95 dBm 4 MHz <-94 dBm 5 MHz <-92 dBm 6 MHz <-91 dBm 7 MHz <-90 dBm 8 MHz <-90 dBm Mobility TU6/RA6/Doppler Performance
Video
Formats	MPEG-2 MP@ML, MPEG-2 MP@HL MPEG4 AVC/H.264 MP@L4.1, MPEG4 AVC/H.264 HP@L4.1
Output	Digital HD video, CVBS
Aspect ratio	4:3 and 16:9 (Letter Box, Pan & Scan)
Audio
Decode	MPEG-1 layer I/II, MP3, MPEG-2 layer II, MPEG-2 AAC, MPEG-4 HE-AAC
Sampling rate	32KHz, 44.1KHz, 48KHz
Output	Stereo line-out and HDMI digital output
Front panel
IR remote 7-segment LED display: Status LED :Power and Channel lock status
Rear panel
Power-in (DC Jack or Micro-USB) Two SMA RF-in CVBS/Audio-L/Audio-R Jack Digital HD video
Power Supply	HV-122-TV	12 VDC Typical Consumption 5.4 Watt (450mA)
	HV-122-2.4G HV-122-A	12 VDC Typical Consumption 6.48 Watt (540mA)
Dimension	W(105 mm) x D(75 mm) x H(35 mm) (Bare bone PCBA size: 100mmx70mm)
Weight	185g (Bare bone PCBA weight 65g)

Specifications are subject to change without prior notice.