Product Description
Professional 6G HD-SDI Performance with Flexible Mini RG59
The AV-Cables Belden 1855A 6G HD-SDI BNC cable is engineered for professional broadcast, video production, live event and commercial AV applications where dependable signal integrity and flexible cable routing are essential.
Built using genuine Belden 1855A Mini RG59 75-ohm broadcast coax and professional Kings true 75-ohm BNC connectors, this compact cable supports SD-SDI, HD-SDI, 3G-SDI and 6G-SDI video systems.
The lightweight 23 AWG Mini RG59 construction is ideal for cameras, switchers, routers, monitors, patch panels, fly packs and mobile production systems where equipment space and cable flexibility matter.
Why Choose Belden 1855A Mini RG59?
Belden 1855A combines professional SDI signal performance with a smaller, lighter and more flexible cable construction. It is an excellent choice for crowded equipment racks, portable production systems and short-to-medium video runs that do not require 12G-SDI bandwidth.
Key Features
- Genuine Belden 1855A Mini RG59 broadcast coax
- Professional Kings true 75-ohm BNC connectors
- Supports SD-SDI, HD-SDI, 3G-SDI and 6G-SDI
- Compact and flexible 23 AWG construction
- Smaller and lighter than full-size RG59 and RG6
- Dual-shielded for dependable signal protection
- CMR-rated PVC jacket
- Available in multiple lengths and jacket colors
- Hand assembled and individually tested in the USA
- Lifetime connector replacement warranty
SDI Formats
6G-SDI, 3G-SDI, HD-SDI and SD-SDI
Cable Construction
Flexible Mini RG59 with a compact 23 AWG conductor
SMPTE Compatibility
SMPTE 259M, 292M, 424M and ST 2081-1
SDI Transmission Distance
Belden 1855A provides professional SDI performance in a compact Mini RG59 construction.
| SDI Format | Approximate Distance | Common Application |
|---|---|---|
| 6G-SDI | Up to approximately 215 ft | High-bandwidth professional video |
| 3G-SDI | Up to approximately 300 ft | 1080p professional video |
| HD-SDI | Up to approximately 450 ft | 720p and 1080i HD video |
| SD-SDI | Up to approximately 1,050 ft | Standard-definition serial digital video |
Transmission distances are approximate. Actual performance depends on the source and receiving equipment, connectors, patch panels, bulkheads, signal format and installation conditions.
Designed for Compact Professional Systems
| Benefit | Why It Matters |
|---|---|
| Mini RG59 construction | Requires less space and is easier to route than full-size RG59 or RG6. |
| Lightweight design | Helps reduce cable weight in portable systems, fly packs and camera rigs. |
| Flexible cable routing | Makes installation easier inside crowded racks and behind production equipment. |
| True 75-ohm signal path | Belden broadcast coax and Kings BNC connectors help maintain proper SDI impedance. |
Recommended Applications
- Broadcast and professional video cameras
- Production switchers and video routers
- Broadcast monitors and multiviewers
- Distribution amplifiers and converters
- Patch panels and equipment racks
- Fly packs and portable production systems
- Mobile production trucks
- Live event and sports production
- Corporate AV systems
- Houses of worship
- Schools, universities and training facilities
Compatible Equipment
This cable is suitable for professional SDI equipment from manufacturers such as Blackmagic Design, AJA Video Systems, Ross Video, Sony, Panasonic, Canon, Grass Valley, Atomos and other equipment using standard 75-ohm BNC connections.
Technical Specifications
| Cable | Genuine Belden 1855A |
|---|---|
| Cable Construction | Mini RG59 broadcast coax |
| Impedance | 75 ohms |
| Center Conductor | 23 AWG solid bare copper |
| Shielding | Duofoil shield with 95% tinned-copper braid |
| Outside Diameter | Approximately 4.5 mm (0.177 inch) |
| Jacket | PVC, CMR rated |
| Connector Type | Kings true 75-ohm BNC male to BNC male |
| Signal Compatibility | SD-SDI, HD-SDI, 3G-SDI and 6G-SDI |
| Maximum SDI Format | 6G-SDI |
| Standards | SMPTE 259M, 292M, 424M and ST 2081-1 |
| Assembly | Hand assembled in the USA |
| Testing | Every completed cable is individually tested |
| Warranty | Lifetime connector replacement warranty |
Available Lengths and Colors
Select your required cable length and jacket color from the product options above. Standard colors may include black, blue, green, red, yellow and white. Available combinations vary according to length and current inventory.
Need 12G-SDI or 4K UHD Performance?
Belden 1855A is designed for signal formats up to 6G-SDI. For single-link 12G-SDI and 4K UHD applications, choose one of our professional 12G cable constructions.
View our 12G and 4K UHD-SDI cables, including Belden 4855R Mini RG59, Belden 4505R RG59 and Belden 4694R RG6.
Hand Assembled, Tested and Supported in the USA
AV-Cables has supplied professional video and broadcast connectivity products since 1995. Every completed Belden 1855A cable assembly is individually tested before shipment.
Eligible signal cables include our lifetime connector replacement warranty, helping protect your investment for years of professional use.
Need Help Choosing an SDI Cable?
Browse our 6G HD-SDI BNC cables or visit our where to buy SDI cables guide.
For assistance choosing the correct cable construction, length or connector, contact AV-Cables.
Build Your Belden 1855A 6G-SDI Cable
Choose your preferred length and jacket color from the product options above, then add the cable to your cart.
