Hollyland Syscom 421S -4 Transmitter with 1 Receiver 1800ft Video/Audio Transmission System
Vendor: Hollyland
Available

Hollyland Syscom 421S -4 Transmitter with 1 Receiver 1800ft Video/Audio Transmission System
The Syscom 421S 4-Transmitter 1800' A/V Transmission System with Carry Case from Hollyland is a multi-cam wireless video transmission system that communicates with up to four cameras using a single receiver with PTZ control as well as tally. Supporting up to 1080p60 video signals via SDI and HDMI, the transmitter/receiver system offers an 1800' line-of-sight transmission range with 0.07 second latency. The 421S system also supports Ethernet pass-through, so you can stream directly via RTSP to the Internet. The receiver features four SDI and four HDMI outputs (one for each transmitter) for connecting to a monitor or switcher. You can control PTZ cameras via IP or RS-422/485 serial connections. The transmitters have a dedicated tally output port that support optional tally lights. Both units also have an OLED display that confirms the resolution, transmission channel, signal strength, and other details such as battery power. Each transmitter has an L-series battery plate, and the receiver has a V-mount battery plate. Both Transmitters and receiver also feature a 2-pin power input for alternate DC power options.
Features
- Multi-Cam Transmitter and Control System
- 1080p60 Transmitter/Receiver 1800' Range
- 4 x Transmitters to 1 x Receiver
- SDI/HDMI Input and Output
- Ethernet Pass-Through for RTSP Streaming
- 0.07 Second Latency
- IP/RS-422/485 PTZ Camera Control
- Supports Tally and Tally Lights
- Built-In Battery Plates
Package Includes
1. Transmitter x 4;
2. Receiver x 1;
3. 5GHz Antenna x 25;
4. User Manual x 1;
5. 7-Inch Magic Arm x 4;
6. OTG Cable x 1;
7. DC Conversion Cable x 4;
8. RS485/RS422 Interface Cable x 5;
9. Power Adapter x 1.
Antenna I/O | Transmitter/Receiver: 4x RP-SMA Female |
Video I/O |
Transmitter: 1x HDMI (Unspecified Signal) Input Transmitter: 1x BNC (3G-SDI) Input Receiver: 4x HDMI (Unspecified Signal) Output Receiver: 4x BNC (3G-SDI) Output |
Embedded Audio |
SDI HDMI |
Audio I/O | No |
Power I/O | Transmitter/Receiver: 1x LEMO 2-Pin (36 VDC) Input |
Other I/O |
Transmitter: 1x USB-C Input Receiver: 1x USB-A Input Transmitter/Receiver: 1x RJ45 (LAN) Input/Output Transmitter/Receiver: 1x Proprietary (RS-422/RS-485) Input/Output |
Wireless Range | 1800' / 548.64 m (Line-of-Sight) |
Channel Bandwidth | 40 MHz |
Frequency Range | US: 5.1 to 5.9 GHz |
Latency | < 0.07 sec |
RF Power | ≤ 22 dBm |
RF Sensitivity | -90 dBm |
Wi-Fi | Yes |
Bluetooth | No |
Mobile App Compatible | Yes: Android & iOS |
Cellular Support | No |
Video Format |
HDMI 1080p: 60/50/30/25/24 1080i: 60/50 720p: 60/50 576p: 50 480p: 60 SDI 1080p: 60/50/30/25/24 1080i: 60/50 720p: 60/50 576p: 50 480p: 60 |
Audio Format | Not Specified by Manufacturer |
Timecode Support | Yes |
Input Power | 36 VDC |
Battery |
Receiver: 1x V-Mount on Fixed Plate Transmitter: 1x L-Series Mount on Fixed Plate |
Power Consumption |
Transmitter: 12 W Receiver: 32 W |
Tripod/Accessory Mounting |
1x 1/4"-20 Female 1x 3/8"-16 Female |
Environmental Resistance | No |
Material of Construction | Metal |
Dimensions |
Transmitter: 5.7 x 3.5 x 1.2" / 144 x 88 x 30 mm Receiver: 9.5 x 5.8 x 2.4" / 242 x 148 x 62 mm |
Weight |
Transmitter: 15.2 oz / 431.5 g, Including Antenna, Battery Plate Receiver: 3.57 lb / 1621.00 g, Including Antenna, Battery Plate |