SWIT SW-M150 WHDI Wireless Technology
SDI&HDMI 150 meters (LOS)
SW-M150 wireless system is based on WHDI wireless technology, 5.1-5.9GHz license free bands, DFS comply, , supports uncompressed 3G/HD-SDI and HDMI (Max 1080p60) to transmit 150 meters (Line-of-Sight) distance, and less than 1 millisecond latency. The system is pure hardware connection, plug and play, which is widely used in director monitoring, drone, ropeway camera, steadicam etc.
Input & Output
The Transmitter (Tx) has 2 omni antennas, supports
1x 3G/HD-SDI input
1x 3G/HD-SDI loop output
1x HDMI 1.3 input
The Receiver (Rx) has 3 omni antennas, supports
2x 3G/HD-SDI output
1x HDMI 1.3 output
SDI & HDMI formats:
1080p60, 1080p59.94, 1080p50
1080p23.98, 1080p24; 1080p25, 1080p29.97, 1080p30;
1080i60, 1080i59.94, 1080i50;
720p60, 720p59.94, 720p5
150meters Transmission
Non-compressed, ≤1ms latency
In Line-of-Sight, SW-M150 supports non-compressed 3G/HD-SDI and HDMI 150 meters (500 feet) transmission, with less than 1 millisecond latency.
SW-M150 supports SDI & HDMI embedded audio (CH1&2) transmission, and supports SDI Timecode & Trigger transmission.
OLED Display & Channel Switch
DFS comply
Both Tx and Rx are equipped with OLED to display signal format, wireless channel number and signal strength.
On the Tx, push the joystick up/down to switch wireless channels from CH0 to CH10, and indicates the signal bars. When changing to a new channel, the paired Rx will follow the new channel automatically.
On the Rx, push the joystick right to enter wireless condition analysis, and after 10 seconds, the OLED will display the signal strength of all 11 wireless channels, and helps to select a best channel to work.
Support 3-4 pairs wireless channels to work together in one location.
* For DFS comply, use CH 0/1/2/3/9/10 only, or switch to AUTO mode
Chip Level Encryption
The Transmitter and Receiver need to pair and work encrypted. Supports Max 1 to 4 multicast. Any unpaired receivers can’t been connected with theTransmitter, in order to protect the camera footages.
Instant Playback Mode
Some of the cine cameras like Alexa Mini, Red Raven, when operate playback on the camera, the output SDI clock was interrupted and will break the wireless video transmission.
SW-M series provide the “Instant Playback” mode, to support the constant wireless video receiving.
On the Tx, push the joystick right to enter menu, and set “InsPB” to “ON”, to switch on the “Instant Playback” Mode.

Accurate Color Reproduction
Due to the wireless chip limitation, the normal wireless systems cannot truely reproduce colors.
SW-M series made particular algorithm modifications, to ensure a broadcast level accurate color reproduction.
Power Supply
Both Tx and Rx provide 7-34V 2-pin lockable DC input.
The Tx can be powered by DV batteries. The following DV plates are provided for selection:
Plate types
|
Compatible batteries
|
F(Default)
|
SONY NP-F970/770, SWIT S-8972, S-8970 |
U
|
SONY BP-U60/U30, SWIT S-8U65, S-8U95 |
D
|
Panasonic CGA-D54/D28, VW-VBD58,SWIT S-8D62, S-8D58, S-8D98 |
E
|
Canon LP-E6, SWIT S-8PE6 |
The Rx can be selected from V-mount (Default) and Gold mount battery plates.
Package
SW-M150 standard package includes:
1x Transmitter
1x Receiver
1x Articulating arm trestle (Cold shoe and 1/4”)
1x D-tap to pole-tap DC cable
1x AC-DC power adaptor
1x Carrying case (for everything)
SW-M150 1T2R Kit includes:
1x Transmitter
2x Receiver
1x Articulating arm trestle (Cold shoe and 1/4”)
2x D-tap to pole-tap DC cable
2x AC-DC adaptor
1x Carrying case (for everything)

Pair the Transmitter and Receiver
The SW-M150 Tx and Rx are already paired in factory. You can directly use.
But if you have several units and mixed up the Tx and Rx, or if you need to do multi-cast, you need to re-pair by yourself. Pairing steps:
(1) Power on the Tx and connect SDI or HDMI source to Tx.
(2) Power on the Rx and connect with a monitor. The monitor will display “SEARCHING FOR CAMERA UNIT”(Pic 1)
(3) Press down and hold the Rx Joystick, till the Rx OLED displays “PAIR” (Pic 2). In the meantime, the monitor will display “PLEASE PRESS REGISTRATION BUTTON ON CAMERA UNIT” (Pic 3). Then release the Rx button.
(4) Press down and hold the Tx Joystick, till the Tx OLED displays “PAIR” (Pic 2). In the meantime, the monitor will display “REGISTRATION IN PROGRESS” (Pic 4), Then release the Tx button.
(5) When progress bar finished, the Tx and Rx are paired successfully, the system is working under encryption.
How to Get the Best Effect of Wireless Transmission
(1) Set the Transmitter and Receiver antennas straight up, even if they are laid down installed.
(2) Set the Receiver as high as possible.
(3) Avoid walls, trees, water and any blockage as best as you can.
SPECIFICATIONS
SW-M150 |
Transmitter |
Receiver |
Input |
3G/HD-SDI ×1 |
/ |
HDMI×1 |
Output |
3G/HD-SDI loop ×1 |
3G/HD-SDI ×2 |
HDMI×1 |
Format |
1080P (60 / 59.94 / 50) |
The same as transmitter inputs |
1080i (60 / 59.94 / 50) |
1080p (30 / 29.97 / 25 / 24 / 23.98) |
720p (60 / 59.94 / 50) |
Wireless frequency |
5.1~5.9GHz |
Radio modules |
OFDM 16QAM |
Transmission distance |
150 meters / 500 feet (Line of sight) |
Latency |
≤1 millisecond |
Power consumption |
≤9W |
≤9W |
Radio power |
100mW |
/ |
Input voltage |
DC 7~34V |
DC 7~34V |
Working environment |
Temperature: 0°C -+40°C |
Dimension |
(w/o antenna) 66×106.5×24.7 (mm) |
102.8×138.5×20.8 (mm) |
Net weight |
192.8g |
359.2g |