RG179D Coaxial Cable M17/94 75 Ohm MIL-DTL-17 Double Shielded Coax for Video and Broadcast
RG179D is a MIL-DTL-17 compliant 75 Ohm coaxial cable (M17/94-RG179D) featuring double silver-plated copper braid shielding for enhanced EMI/RFI protection. Built with a stranded silver-coated copper-covered steel center conductor and PTFE dielectric, this compact 3mm diameter cable delivers clean video signal transmission in electrically noisy environments. Operating from -55°C to +200°C with frequency capability up to 3 GHz, RG179D is the preferred choice for broadcast studios, medical imaging, and security systems where interference protection is critical.
- Double shielded construction – Two silver-plated copper braids provide superior EMI/RFI protection vs standard RG179
- 75 Ohm impedance – Optimized for professional video, broadcast, and CCTV applications
- Compact 3mm diameter – Fits tight spaces in patch panels, cameras, and equipment racks
- Stranded SCCS conductor – Silver-plated copper-covered steel offers flexibility and durability for repeated handling
- MIL-DTL-17 compliant – M17/94-RG179D for consistent quality and reliability
- Enhanced signal integrity – Double shielding prevents interference in noisy studio and industrial environments
- PTFE dielectric – Stable electrical performance across -55°C to +200°C
- FEP jacket – UV resistant, chemical resistant, and low smoke for indoor and outdoor use
| Item | Material | Diameters (mm) |
|---|---|---|
| Inner Conductor | SCCS | 7/0.10 |
| Insulation | PTFE | 1.60 |
| Outer Conductor | 2:SC | 2.50 |
| Jacket | FEP | 3.00 |
| Capacitance (pF/m) | 64 |
| Impedance (Ohms) | 75 |
| Velocity of Propagation (%) | 69.5 |
| Max Voltage (Vrms) | 1200 |
| Max Frequency (MHz) | 3000 |
| Bend Radius (mm) | 12 |
| Temperature Range (℃) | -55~+200 |
| Frequency (MHz) | Attenuation (dB/m) |
|---|---|
| 100 | 0.268 |
| 400 | 0.549 |
| 1000 | 0.883 |
- Broadcast video studios – Interference-free camera connections and production equipment
- CCTV and security systems – Reliable video in electrically noisy industrial environments
- Medical imaging – Clean signal delivery for MRI, endoscopic, and diagnostic equipment
- Professional audio/video – HD-SDI and 4K video distribution where signal integrity matters
- National security and defense – MIL-DTL-17 compliant for secure video applications
- Aerospace avionics – Video displays protected from onboard electromagnetic interference
- Data centers – High-density video monitoring in server environments
- Test and measurement – 75 Ohm reference leads requiring extra shielding
A: RG179D features double shielding (two braids) while RG179 has single shielding. RG179D provides superior protection against electromagnetic interference in noisy environments.
A: M17/94-RG179D is the official MIL-DTL-17 part number.
A: 75 Ohm, specifically designed for video and broadcast applications.
A: 3mm – similar with RG179, despite the double shielding.
A: Choose RG179D when installing near power lines, motors, transmitters, or other sources of electromagnetic interference.
A: Continuous operation from -55°C to +200°C.
A: BNC, TNC, SMA, and F-type connectors designed for 75 Ohm coax. The double shield does not affect connector compatibility.
A: Yes, the FEP jacket provides UV and moisture resistance.
A: Yes, sold by meter or foot with no minimum order. Custom assemblies with connectors available.
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