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SMA Male Right Angle to BNC Female Bulkhead Pigtail | RG179 75Ω Low-Cost Jumper for CCTV, SDI, and Broadcast Signal Routing
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Precision RG197 cable assembly with SMA male right angle plug to BNC female bulkhead connector. Optimized for 75Ω video systems (SD/HD-SDI, CCTV), satellite LNBs, and legacy telecom. Includes ROHS compliance, 18 GHz bandwidth, and strain-relief mounting. Ideal for space-constrained installations.
Purpose-Built for 75Ω Video and Broadcast Systems
This RG179 pigtail jumper bridges SMA-equipped devices (via right-angle SMA male) to BNC female bulkhead ports common in broadcast gear, CCTV systems, and satellite receivers. Designed for 75Ω impedance systems, it supports frequencies up to 18 GHz with ≤ 0.45 dB/m loss @ 1 GHz—critical for SDI video, analog RF modulation, and satellite LNB signal routing. The right-angle SMA plug saves space in tight enclosures, while the BNC female bulkhead enables panel-mount installations. Critical: RG179 is 75Ω—using this in 50Ω systems (e.g., Wi-Fi/cellular) causes 0.5 dB reflection loss at 1 GHz.
Parameter | Specification |
Cable Type | RG179 (75Ω, 3.9 mm diameter) |
Impedance | 75 Ohm (Standard for video/broadcast systems) |
Frequency Range | DC to 18 GHz (Supports SDI, HD-SDI, 3G-SDI, analog video, satellite L-band) |
Insertion Loss | ≤ 0.32 dB/m @ 250 MHz; ≤ 0.45 dB/m @ 1 GHz; ≤ 0.85 dB/m @ 3 GHz |
VSWR | ≤ 1.15:1 (DC–1 GHz); ≤ 1.25:1 (1–3 GHz); ≤ 1.35:1 (3–6 GHz) |
Connector A | SMA Male Plug (Right Angle) Threaded coupling (5/8"-24 UNEF) Gold-plated brass, PTFE dielectric 350 µin gold plating, 8–12 Nm torque rating |
Connector B | BNC Female Bulkhead Jack Bayonet coupling, 14 mm hex nut for panel mount ROHS-compliant nickel plating 75Ω impedance match (critical for video) |
Cable Construction | Center Conductor: 20 AWG silver-plated copper Dielectric: Solid PE Shielding: 95% tinned copper braid Jacket: Flexible PVC (-20°C to +75°C), flame-retardant (UL 1581) |
Standard Length | 15 cm (Pigtail); Custom lengths: 10–200 cm |
Key Certifications | ROHS, CE, ISO 9001 |
Compatibility | Broadcast switchers (Sony, Grass Valley), CCTV DVRs (Hikvision, Dahua), satellite LNBs, SDI signal generators |
1. 75Ω Impedance Precision
Matches broadcast/video standards (SMPTE 259M/292M) to prevent signal reflections in:
HD-SDI video transmission (1.485 Gbps)
Analog composite video (NTSC/PAL)
Satellite LNB signal routing (950–2150 MHz)
Critical: Using 50Ω cables (e.g., RG58) in 75Ω systems causes 0.5 dB loss @ 1 GHz and visible video artifacts.
2. Right-Angle SMA Plug for Space-Constrained Installations
• Reduces bend radius in tight spaces (e.g., behind broadcast panels, inside CCTV housings).
• Minimizes strain on SMA ports during repeated connections.
3. BNC Female Bulkhead for Permanent Mounting
• Panel-mount design secures the connector to equipment chassis (no cable pull-through).
• Hex nut allows tool-assisted tightening for vibration-resistant installations.
4. RG179 Cost-Performance Balance
• 20% lower cost than RG59 while maintaining<0.45 dB/m loss @ 1 GHz.
• Ideal for short-run pigtails (<50 cm) where ultra-low loss (e.g., RG6) is unnecessary.
Broadcast Video Routing: Connecting SDI cameras to switchers via SMA-to-BNC adapters.
CCTV Systems: Linking Hikvision/Dahua NVRs to analog cameras with SMA-output LNBs.
Satellite Ground Stations: Routing LNB signals to IRDs (Integrated Receiver-Decoders).
Legacy Telecom: DS3/T3 signal testing in 75Ω coaxial networks.
Field Repair Kits: Pre-terminated pigtails for rapid video signal path restoration.
1. Impedance Verification
Every unit tested with TDR (Time Domain Reflectometer) to confirm 75Ω consistency (±2Ω tolerance).
Cross-checked against SMPTE video standards for pulse response compliance.
2. Right-Angle Durability
Bend Cycle Test: 5,000+ flex cycles with no solder joint failure.
Pull Strength: 35 N minimum on SMA connector (exceeds MIL-PRF-39012).
3. Bulkhead Mount Integrity
Hex nut torque-tested to 0.5–0.7 Nm (prevents over-tightening damage).
Epoxy-sealed for vibration resistance (per IEC 60529).
4. ROHS Compliance
Full material disclosure (Cd/Pb/Hg/Cr⁶⁺/PBB/PBDE < 0.1%).
Lead-free solder (Sn96.5/Ag3.0/Cu0.5).
1. Standard Packaging: Individually sealed in anti-static bag with:
75Ω vs. 50Ω application guide (prevents impedance mismatches)
SDI video loss chart (270 Mbps–3 Gbps)
Bulkhead mounting template (for panel cutout)
2. Lead Time: 24 hours (in-stock 15 cm length); 3–5 days for custom lengths.
3. MOQ: 1 unit (stock); custom lengths require 10+ units.
4. Bulk Orders: Labeled with SMPTE compliance badge (e.g., "HD-SDI Verified").
Q1: Can I use this for 50Ω systems (e.g., Wi-Fi testing)?
A: No. RG179 is 75Ω—using it in 50Ω systems (e.g., cellular/Wi-Fi) causes 0.5 dB reflection loss @ 1 GHz and distorted measurements. Use LMR-195 for 50Ω applications.
Q2: Is this suitable for 3G-SDI (2.97 Gbps) video?
A: Yes for short runs. Supports 3G-SDI up to 30 meters (per SMPTE 424M). For >30 cm lengths, verify loss: ≤ 0.85 dB/m @ 3 GHz.
Q3: Why choose RG179 over RG59?
A: RG179 is thinner (3.9 mm vs. 6.1 mm) and 20% cheaper while maintaining near-identical loss at<3 GHz. Ideal for pigtails where flexibility matters.
Q4: What’s the difference between bulkhead and chassis-mount BNC?
A: Bulkhead = Connector mounted through a panel with hex nut securing it from both sides. Chassis-mount = Connector soldered directly to PCB (not panel-mounted).
1. Confirm 75Ω Requirement: Verify your system uses 75Ω (broadcast/video) vs. 50Ω (RF/test equipment).
2. Length Limitations:
≤ 30 cm: Safe for 3G-SDI (2.97 Gbps).
> 50 cm: Requires RG6 or RG59 for HD-SDI.
3. Not for High Power: Max power handling = 10W @ 1 GHz (derate to 5W @ 3 GHz).
Device Type | Common Models | Key Requirement |
Broadcast Switchers | Sony BVS-8000, Grass Valley K-Frame | 75Ω impedance for SDI signal integrity |
CCTV DVRs | Hikvision DS-7104HUHI-F1, Dahua DSS7016 | BNC female bulkhead for panel mounting |
Satellite LNBs | Inverto IDL9241, Taqua TQLNB-041 | SMA male input (right angle saves space) |
SDI Test Equipment | Tektronix WFM5200, Leader LV5350D | Requires 75Ω cable to avoid video artifacts |
Download 75Ω vs. 50Ω Guide | Request Custom Length Quote
Includes free SDI signal integrity checklist with every order.
Need higher performance for long runs? → Explore RG59/RG6 Assemblies for HD-SDI
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