Mars 4K is Hollyland’s affordable 4K wireless video transmission system. It transmits up to 4K30 over a 5 GHz link with a range of up to 150 m (450 ft) and a latency of just 0.06 s.
Both HDMI and 3G-SDI connections are available on transmitter and receiver, with support for broadcast and decimal frame rates. One transmitter can feed two receivers, or connect to phones and tablets through the HollyView app. Power options include NP-F batteries, DC input and USB-C.
This package
Single Mars 4K transmitter with HDMI and 3G-SDI inputs and a touchscreen LCD. It can transmit to up to four mobile devices via the HollyView app.
Key features
4K30 UHD wireless transmission
Up to 150 m (450 ft) LOS range
0.06 s low latency
HDMI and 3G-SDI
Broadcast and decimal frame rates
Up to 2 receivers or 4 mobile devices via HollyView
Smart channel scan
NP-F, DC and USB-C power
Specifications
Transmitter
Receiver
Interface
Antenna (RP-SMA male) HDMI 1.4 b input (Type-A female) 3G-SDI input DC input (2.0mm core sccket) USB Type-C (USB 2.0 OTG)
Antenna (RP-SMA male) HDMI 1.4 b output (Type-A female) 3G-SDI output DC input (2.0mm core sccket) USB Type-C (USB 2.0 OTG)
Power supply
DC input: 6V–16V USB Type-C: 5V/2.5A (not supporting the QC and PD protocols) NP-F battery: 6.8V–8.4V
DC input: 6V–16V USB Type-C: 5V/2.5A (not supporting the QC and PD protocols) NP-F battery: 6.8V–8.4V
Power consumption
<8.5W (typical)
<5W (typical)
Weight
223g (7.9oz) (excluding the antennas)
223g (7.9oz) (excluding the antennas)
Dimension
(LxWxH): 115x65x32mm (4.5″x2.5″x1.3″)
(LxWxH): 115x65x32mm (4.5″x2.5″x1.3″)
Operating frequency
5.1GHz–5.8GHz
5.1GHz–5.8GHz
Modulation mode
802.11n
802.11n
TX power
21dBm (max.)
21dBm (max.)
RX sensitivity
N/A
–90dBm
Bit rate
8Mbps–20Mbps
Latency
0.06s (test data when 1080p60 signals are transmitted in a laboratory)
Range
450ft (150m) (test data in an open, interference-free outdoor environment)
Bandwidth
20MHz
Audio format
2 audio channels for the 3G-SDI and 8 audio channels for the HDMI 1.4b
Operating temperature
–10℃ to 60℃
Storage temperature
–40℃ to 60℃
ESD protection
Contact discharge: ±6kV; air discharge: ±8kV (test data)
HDMI input → output formats
HDMI Input Format
HDMI Output Format
SDI Output Format
720p50/59.94/60
720p50/60
720p50/60
1080i50/59.94/60
1080i50/60
1080i50/60
1080p23.98/24/25/29.97/30
1080p24/25/30
1080p24/25/30
1080p50/59.94/60
1080p50/60
1080p50/60
3840*2160 p24/25/30
3840*2160 p24/25/30
1080p24/25/30
SDI input → output formats
SDI Input Format
HDMI Output Format
SDI Output Format
1080p50/59.94/60 (Level A) 1080p50/59.94/60 (Level B)
1080p50/59.94/60
1080p50/59.94/60 (Level A)
1080i50/59.94/60
1080i50/59.94/60
1080i50/59.94/60
1080p23.98/24/25/29.97/30
1080p23.98/24/25/29.97/30
1080p23.98/24/25/29.97/30
1080psf23.98/24
1080p23.98/24
1080p23.98/24
1080psf25/29.97/30
1080i50/59.94/60
1080i50/59.94/60
720p50/59.94/60
720p50/59.94/60
720p50/59.94/60
Specifications as published by the manufacturer. Operating frequencies and transmit power may vary by country or region according to local regulations.
