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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.
Key Features
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
Specifications
Physical Properties
Item
Material
Diameters (mm)
Inner Conductor
SCCS
7/0.10
Insulation
PTFE
1.60
Outer Conductor
2:SC
2.50
Jacket
FEP
3.00
Electrical Properties
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
Attenuation
Frequency (MHz)
Attenuation (dB/m)
100
0.268
400
0.549
1000
0.883
Applications
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
FAQ
Q: What is the difference between RG179 and RG179D?
A: RG179D features double shielding (two braids) while RG179 has single shielding. RG179D provides superior protection against electromagnetic interference in noisy environments.
Q: What is the M17 designation for RG179D?
A: M17/94-RG179D is the official MIL-DTL-17 part number.
Q: What is the impedance of RG179D?
A: 75 Ohm, specifically designed for video and broadcast applications.
Q: What is the diameter of RG179D?
A: 3mm – similar with RG179, despite the double shielding.
Q: When should I choose RG179D over RG179?
A: Choose RG179D when installing near power lines, motors, transmitters, or other sources of electromagnetic interference.
Q: What is the temperature range?
A: Continuous operation from -55°C to +200°C.
Q: What connectors work with RG179D?
A: BNC, TNC, SMA, and F-type connectors designed for 75 Ohm coax. The double shield does not affect connector compatibility.
Q: Is RG179D suitable for outdoor use?
A: Yes, the FEP jacket provides UV and moisture resistance.
Q: Do you offer custom lengths?
A: Yes, sold by meter or foot with no minimum order. Custom assemblies with connectors available.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Trading Company
Year Established:
2005
Total Annual:
12100000- 18600000
Employee Number:
11~50
Ecer Certification:
Verified Supplier
About Us—Shanghai Baiyin Cable Co., Ltd.
Since 2005, Shanghai Baiyin Cable Co., Ltd. has specialized in designing and manufacturing high-performance cables for demanding environments. Headquartered in Shanghai, we serve global industries with tailored solutions engineered for reliability, prec... About Us—Shanghai Baiyin Cable Co., Ltd.
Since 2005, Shanghai Baiyin Cable Co., Ltd. has specialized in designing and manufacturing high-performance cables for demanding environments. Headquartered in Shanghai, we serve global industries with tailored solutions engineered for reliability, prec...