Professional cable manufacturer
75 Ω · 50 Ω · IEC 61196-1 · MIL-DTL-17
Coaxial Cable — RG6 / RG11 (75 Ω) & RG58 / RG213 (50 Ω) RF Cable
Two separate impedance families on one datasheet-driven page: 75 Ω CATV & satellite coax (RG6, RG6 Quad Shield, RG11) and 50 Ω RF & test coax (RG58, RG213) — construction and attenuation quoted per model, never combined.
75 ± 5 Ω
RG6 · RG6 Quad · RG11
53 ± 3 Ω
RG58 (M17/155) impedance
50 ± 3 Ω
RG213 (M17/74) impedance
−30 to +70°C
Operating temperature
75 Ω and 50 Ω quoted as separate constructions
Construction and attenuation per model, with frequency stated
Sample and first-article orders before bulk
Incoming goods inspection recorded for every reel
COAXIAL CABLE — 75 Ω & 50 Ω
75 ΩRG6 · RG11 · CATV & satellite
50 ΩRG58 · RG213 · RF & test
IEC 61196-1Coaxial communication cables
MIL-DTL-1750 Ω slash sheets
ANSI/SCTE 7475 Ω drop cable
Key Specifications
The essentials, at a glance
What a buyer fixes before a coaxial quotation can be priced — which impedance family, which model, which inner conductor material and which jacket.
75 ± 5 Ω
75 Ω family tolerance
53 ± 3 Ω
RG58 (M17/155) impedance
50 ± 3 Ω
RG213 (M17/74) impedance
CCS / BC
Inner conductor, per model
66–83%
VOP, 75 Ω family
PVC or LSZH
Jacket options
Product Overview
Two impedance families, two specifications
This page covers flexible coaxial cable in the two impedance families that dominate RF work: the 75 Ω family (RG6, RG6 Quad Shield and RG11) used for CATV, satellite and video distribution, and the 50 Ω family (RG58 and RG213) used for RF test, antenna feeders and instrumentation. Each model is quoted from its own construction: inner conductor, dielectric, shield layers, jacket and attenuation.
The two families are not interchangeable. Impedance is fixed by the conductor and dielectric geometry, not by the connector: a 75 Ω cable terminated with a 50 Ω connector, or the reverse, produces a mismatch and reflections at the joint. Selecting one family to save time on the other is the most common and most expensive mistake on a coax order, so the specifications below are kept strictly separate — 75 Ω in Tables 1 and 2, 50 Ω in Tables 3 and 4.
Inside a family the inner conductor material decides the loss, and it has to be written at material level, not as "copper". The RG6 and RG11 constructions here use CCS (copper-clad steel) — RG6 at Φ 1.02 mm and RG11 at 1.63 mm — while RG58 uses tinned copper and RG213 uses bare copper (BC). The published DC resistance of the inner conductor shows the difference plainly: 21.7 Ω/km for RG6 CCS against 6.0 Ω/km for RG213 bare copper. A customer comparing only the outer diameter will read that difference out of the attenuation column instead.
Shield layer count is a construction statement, not a rating. Standard RG6 here is a two-layer shield — one aluminium/polyester foil plus one aluminium braid — while RG6 Quad Shield is foil + braid + foil + braid, four layers, each with its own coverage figure. Table 1 lists all four layers individually with their coverage. Coverage is never summed: the layers shield differently and the individual figures are what the construction states.
Before the order is released, three things get fixed in writing: the model and impedance family, the inner conductor material (CCS as standard on RG6/RG11 — a bare copper version would be a separate ordered item), and the jacket compound and length. Values on this page are the published construction and attenuation data for the referenced models; the drawing, sample and incoming inspection of the delivered reels govern.
More about the manufacturer: About SORIVO →
Key Features
Eight things that decide a coaxial order
Two families, no shared table
75 Ω (RG6 / RG6 Quad Shield / RG11) and 50 Ω (RG58 / RG213) are specified, tabulated and priced separately — never on one row.
RG6: CCS Φ 1.02 mm, foam PE
Copper-clad steel inner conductor, Φ 4.57 mm foam PE dielectric, 75 ± 5 Ω, jacket to Φ 6.91 mm in PVC or LSZH.
RG11: larger core, lower loss
CCS 1.63 mm inner conductor with Φ 7.2 mm LDPE dielectric and Φ 10.3 mm jacket; 14.3 dB/100 m @ 1000 MHz.
Quad shield defined per layer
Foil ≥ 25% + braid 80 × 0.12 mm ≥ 60% + foil ≥ 25% + braid 64 × 0.12 mm ≥ 40% — four layers, each stated on its own.
RG58: tinned copper, 53 ± 3 Ω
M17/155 = RG 58 C/U. Tinned copper 19 × 0.18 mm inner conductor, tinned copper braid 112 × 0.13 mm at 95% coverage.
RG213: bare copper, 50 ± 3 Ω
M17/74 = RG 213/U. Bare copper 7 × 0.75 mm inner conductor at 6.0 Ω/km, bare copper braid 192 × 0.18 mm at 97% coverage.
Attenuation always with frequency
Every figure is stated as dB/100 m at a named frequency. No attenuation value is ever quoted without its @ xxx MHz condition.
Published data, confirmed against the drawing
Values below are the published construction and attenuation data for the referenced models; the drawing, sample and incoming inspection govern.
Applications
Where these coaxial cables go
Distribution, video, RF test and antenna work — matched to the impedance family the system actually needs.
01
CATV & Broadband Distribution
75 Ω RG6 and RG11 drop and distribution runs for cable TV, broadband and MATV head-end systems.
02
Satellite & DTH Systems
75 Ω RG6 and RG6 Quad Shield runs between dish, multiswitch and receiver where shield integrity matters.
03
CCTV & Video Surveillance
75 Ω RG6 and RG11 for analogue and HD video backbones, camera drops and video distribution panels.
04
RF Test & Measurement
50 Ω RG58 and RG213 patch and instrument leads in benches, calibration racks and EMC test setups.
05
Antenna Feeder & Radio
50 Ω RG58 for short jumpers and RG213 for longer low-loss antenna feeders on radio and two-way systems.
06
Broadcast, Studio & AV
75 Ω coax for studio routing, SDI-style video distribution and AV racks where impedance must stay 75 Ω.
07
Marine, Vehicle & Mobile RF
Flexible 50 Ω and 75 Ω coax for marine radio, vehicle antenna feeds and mobile RF installations.
08
Building Coax Backbone & Retrofits
75 Ω riser and backbone coax for structured building distribution alongside the data cabling.
Technical Specifications
Full specification sheet
Four tables, deliberately split by impedance family: 75 Ω construction and attenuation first, then the 50 Ω family. No parameter line is shared between the two.
Table 1 75 Ω family — construction and electrical data (RG6 / RG6 Quad Shield / RG11)
| 75 Ω — General | |
| Impedance Family | 75 Ω nominal — RG6, RG6 Quad Shield and RG11. Characteristic impedance tolerance is stated per model below as published for that construction |
| Characteristic Impedance | 75 ± 5 Ω per model as published for the referenced construction (RG6, RG6 Quad Shield, RG11) |
| Standards Framework | IEC 61196-1 (coaxial communication cables — generic specification) with the applicable sectional specification; ANSI/SCTE 74 for braided 75 Ω flexible RF drop cable in North America. MIL-C-17F 75 Ω outline numbers exist for these models (M17/2 = RG 6, M17/6 = RG 11); these are the standards the models belong to, not a certification claim for this page |
| Applications | CATV, satellite / DTH, MATV, CCTV and video distribution |
| 75 Ω — RG6 (single shield) | |
| Inner Conductor | CCS (copper-clad steel), Φ 1.02 mm |
| Dielectric | Foam PE, Φ 4.57 ± 0.20 mm |
| Shield 1 (inner) | Aluminium / polyester composite tape (Al/PET, bonded) — 100% coverage |
| Shield 2 (outer) | Aluminium braid 96 × 0.12 mm — 82% coverage |
| Outer Jacket | PVC or LSZH, Φ 6.91 mm |
| Nominal Capacitance | 54 pF/m |
| Velocity of Propagation | 83% |
| Insulation Resistance | > 5000 MΩ·km |
| Inner Conductor DC Resistance | 21.7 Ω/km |
| Outer Conductor DC Resistance | 24.1 Ω/km |
| Operating Temperature | −30 °C to +70 °C |
| Reference Weight | 45 kg/km |
| 75 Ω — RG6 Quad Shield (four shield layers) | |
| Inner Conductor | CCS (copper-clad steel), Φ 1.02 mm |
| Dielectric | Foam PE, Φ 4.60 ± 0.20 mm |
| Quad Shield Explained | Foil + braid + foil + braid = four shield layers, against two layers (one foil + one braid) on standard RG6. Shield layers are bonded at both ends for a coaxial screen to work |
| Shield 1 | Aluminium / polyester (Al-mylar) tape — ≥ 25% |
| Shield 2 | Aluminium braid 80 × 0.12 mm — ≥ 60% |
| Shield 3 | Aluminium / polyester (Al-mylar) tape — ≥ 25% |
| Shield 4 | Aluminium braid 64 × 0.12 mm — ≥ 40% |
| Outer Jacket | PVC or LSZH, Φ 7.55 ± 0.20 mm |
| Nominal Capacitance | 54 pF/m |
| Velocity of Propagation | 82% |
| Insulation Resistance | > 5000 MΩ·km |
| Conductor DC Resistance | < 24.1 Ω/km |
| Operating Temperature | −30 °C to +70 °C |
| Reference Weight | 59.8 kg/km |
| 75 Ω — RG11 | |
| Inner Conductor | CCS (copper-clad steel), 1.63 mm |
| Dielectric | Low-density PE (LDPE), Φ 7.2 ± 0.2 mm |
| Shield 1 (inner) | Aluminium foil — 100% coverage |
| Shield 2 (outer) | Aluminium braid 96 × 0.12 mm — 60% coverage |
| Outer Jacket | PVC or LSZH, Φ 10.3 ± 0.18 mm |
| Optional Messenger | Galvanised steel 1.83 mm / 2.77 mm |
| Nominal Capacitance | 53 pF/m |
| Velocity of Propagation | 66% |
| Insulation Resistance | > 2000 MΩ·km |
| Inner Conductor DC Resistance | 13.5 Ω/km |
| Outer Conductor DC Resistance | 24.1 Ω/km |
| Operating Temperature | −30 °C to +70 °C |
| Reference Weight | 116.4 – 140.4 kg/km |
| 75 Ω — General Ordering Information | |
| Minimum Bend Radius | Confirmed against the construction drawing for the ordered model and jacket — not published for these models |
| Jacket Compound | PVC or LSZH; the compound supplied is stated on the quotation for the ordered model |
| Bare Copper (BC) Version | The RG6 and RG11 constructions above are CCS inner conductor. A bare copper version, if required, is quoted as a separate ordered item and confirmed on the drawing |
| Shield Coverage | As published per layer above. Any change to braid construction or coverage is a separate ordered item |
| Standard Lengths | 305 m (1000 ft) / 500 m / 1000 m per reel; custom lengths available — see the commercial notes with Table 4 |
| MOQ / Lead Time | MOQ 1 reel (sample length negotiable); lead time 7–15 working days — to be confirmed at order (see Table 4 note) |
Values are the published construction and typical attenuation data for the referenced 75 Ω models (RG6, RG6 Quad Shield, RG11), quoted from the manufacturer's published model datasheets. They are not Sorivo factory-measured values and they are not a certification claim. Final acceptance is against our drawing, the approved sample and incoming inspection of the delivered reels. The two impedance families on this page are never combined: 75 Ω data appears only in Tables 1 and 2, 50 Ω data only in Tables 3 and 4.
Table 2 Attenuation — 75 Ω family (dB/100 m, nominal, at the stated frequency)
| Frequency | RG6 single shield | RG6 Quad Shield | RG11 |
|---|---|---|---|
| @ 50 MHz | 5.0 | 4.8 | 3.1 |
| @ 100 MHz | 6.7 | 6.7 | 4.2 |
| @ 200 MHz | 9.5 | 9.3 | — |
| @ 250 MHz | — | — | 6.8 |
| @ 400 MHz | 14.1 | — | 8.5 |
| @ 500 MHz | — | 15.0 | 9.5 |
| @ 600 MHz | — | 16.9 | 10.5 |
| @ 700 MHz | 19.9 | — | — |
| @ 750 MHz | — | — | 12.1 |
| @ 800 MHz | — | 19.4 | — |
| @ 860 MHz | — | — | 13.2 |
| @ 900 MHz | 23.2 | — | — |
| @ 1000 MHz | 24.8 | 21.6 | 14.3 |
| @ 1350 MHz | 29.9 | 24.2 | — |
| @ 1450 MHz | — | — | 18.6 |
| @ 1750 MHz | 35.1 | 28.0 | — |
| @ 2050 MHz | — | — | 23.0 |
| @ 2150 MHz | 37.9 | 31.5 | — |
| @ 2400 MHz | — | 32.8 | — |
| @ 2500 MHz | 39.0 | — | — |
| @ 3000 MHz | — | 37.9 | — |
Attenuation is given in dB/100 m — the whole table is in one unit and is not mixed with dB/100 ft. Each value carries its frequency. A dash means the published model datasheet gives no attenuation figure at that frequency for that model, so no value is interpolated. The 3000 MHz point exists only for RG6 Quad Shield; the single-shield RG6 construction is published only to 2500 MHz and RG11 to 2050 MHz. The 1000 MHz row is highlighted. These are published typical attenuation values for the referenced construction — not Sorivo factory measurements — and the accepted value is confirmed against the drawing and sample.
Table 3 Attenuation — 50 Ω family (dB/100 m, nominal, at the stated frequency)
| Frequency | RG58 (M17/155) | RG213 (M17/74) |
|---|---|---|
| @ 50 MHz | 10.8 | 4.5 |
| @ 100 MHz | 16.0 | 6.7 |
| @ 200 MHz | 24.0 | 9.9 |
| @ 400 MHz | 37.7 | 14.3 |
| @ 500 MHz | 41.3 | 16.1 |
| @ 600 MHz | 49.7 | 17.8 |
| @ 860 MHz | 64.2 | 22.1 |
| @ 1000 MHz | 70.0 | 24.3 |
Attenuation is given in dB/100 m only, with the frequency stated for every value. These two models are both 50 Ω and appear together here; no 75 Ω value appears in this table. The 1000 MHz row is highlighted because it is the point at which the two families are most easily confused: RG213 at 24.3 dB/100 m @ 1000 MHz is a 50 Ω cable, and RG6 at 24.8 dB/100 m @ 1000 MHz is a 75 Ω cable — close numbers, different impedance systems, not interchangeable. Published typical values for the referenced construction; confirmed against the drawing and sample.
Table 4 50 Ω family — construction, general ordering and logistics (RG58 / RG213)
| 50 Ω — General | |
| Impedance Family | 50 Ω nominal — RG58 and RG213. Each model's published impedance is stated individually below |
| Standards Framework | MIL-DTL-17 (which superseded MIL-C-17) — flexible RF coaxial cable specified per slash sheet: M17/155 = RG 58 C/U, M17/74 = RG 213/U. IEC 61196-1 is the generic specification framework for coaxial communication cables. These are the standards the models belong to; no qualified-products listing is claimed for this page |
| Related Outline Numbers | M17/75 = RG 214/U is the next model commonly asked for alongside RG213 — quoted separately on request |
| Low-Loss 50 Ω Options | Low-loss 50 Ω RF cable of the LMR type can be quoted as a separate item. LMR is a registered trademark of its owner; this page does not use it as a product category name |
| 50 Ω — RG58 (M17/155 = RG 58 C/U) | |
| Characteristic Impedance | 53 ± 3 Ω as published for this model |
| Inner Conductor | Tinned copper, 19 × 0.18 mm |
| Dielectric | Low-density PE (LDPE), Φ 2.95 ± 0.10 mm |
| Outer Conductor / Shield | Tinned copper braid 112 × 0.13 mm — 95% coverage |
| Outer Jacket | PVC or LSZH, Φ 5.00 ± 0.10 mm |
| Nominal Capacitance | 100 pF/m |
| Velocity of Propagation | 66% |
| Insulation Resistance | > 2000 MΩ·km |
| Inner Conductor DC Resistance | 37.5 Ω/km |
| Outer Conductor DC Resistance | 16.5 Ω/km |
| Operating Temperature | −30 °C to +70 °C |
| Reference Weight | 39.9 kg/km (copper weight 18.7 kg/km) |
| 50 Ω — RG213 (M17/74 = RG 213/U) | |
| Characteristic Impedance | 50 ± 3 Ω as published for this model |
| Inner Conductor | Bare copper (BC), 7 × 0.75 mm |
| Dielectric | Low-density PE (LDPE), Φ 7.25 ± 0.18 mm |
| Outer Conductor / Shield | Bare copper braid 192 × 0.18 mm — 97% coverage |
| Outer Jacket | PVC or LSZH, Φ 10.3 ± 0.18 mm |
| Nominal Capacitance | 100 pF/m |
| Velocity of Propagation | 66% |
| Insulation Resistance | > 2000 MΩ·km |
| Inner Conductor DC Resistance | 6.0 Ω/km |
| Outer Conductor DC Resistance | 4.5 Ω/km |
| Operating Temperature | −30 °C to +70 °C |
| Reference Weight | 163 kg/km (copper weight 76.9 kg/km) |
| Shield Effectiveness & Return Loss (50 Ω) | |
| Shield Effectiveness — RG58 | 100–900 MHz: > 55 dB |
| Shield Effectiveness — RG213 | 100–900 MHz: > 55 dB |
| Return Loss — RG58 | 30–300 MHz > 27 dB · 300–600 MHz > 23 dB · 600–900 MHz > 22 dB |
| Return Loss — RG213 | 30–300 MHz > 31 dB · 300–600 MHz > 28 dB · 600–900 MHz > 27 dB |
| Voltage — read this before quoting a voltage | |
| Voltage Rating | These coaxial models are not ordered against a product voltage rating on this page. The manufacturer publishes test and operating voltages for RG58 (5 kV / 2.5 kV) and RG213 (10 kV / 5 kV), but those are in-house routine test and operating-voltage figures for the cable construction at the factory, not a rated voltage or an insulation class for the finished product. No product voltage rating is quoted here; if a voltage figure is needed for your application it is confirmed against the drawing for the ordered construction |
| Dielectric Withstand & Routine Test | Factory routine electrical testing is part of the manufacturer's production control. No spark-test, withstand-test or routine-inspection result is published here as a product property, and none is claimed as a rating for the delivered reel |
| Commercial & Logistics | |
| Minimum Bend Radius | Confirmed against the construction drawing for the ordered model and jacket — not published for these models |
| Jacket Compound | PVC or LSZH; the compound supplied is stated on the quotation for the ordered model |
| Standard Lengths | 305 m (1000 ft) / 500 m / 1000 m per reel; custom lengths available |
| Packaging | Wooden drum / cardboard box / plastic reel |
| MOQ | 1 reel (sample length negotiable) |
| Lead Time | 7–15 working days |
| Certification Documents | UL file numbers, CPR class letters and RoHS / REACH declarations are not published on this page. Where the ordered construction carries a certificate, the certificate and test reports are supplied with the quotation for that construction |
Values are the published construction data for the referenced 50 Ω models (RG58 / M17/155 and RG213 / M17/74), quoted from the manufacturer's published model datasheets. They are not Sorivo factory-measured values, and the "50 Ω nominal" family name does not overwrite the per-model published figure — RG58 is stated at 53 ± 3 Ω and RG213 at 50 ± 3 Ω exactly as published. MOQ, lead time, standard lengths and packaging on this page follow the data-cable commercial basis used on this site and are subject to confirmation at order. Final acceptance is against our drawing, the approved sample and incoming inspection. Nothing in this table is a certification, qualification or compliance claim: UL file numbers, CPR classes and RoHS / REACH statements are not published here.
Certificates & Standards
Verify before you buy — we make it easy
IEC 61196-1 — Coaxial Communication Cables
The generic specification for coaxial communication cables, shared by both the 75 Ω and the 50 Ω family on this page. The individual dimensions and electrical limits of a model sit in the applicable sectional specification, so this is the framework the models belong to rather than a certificate held for a specific reel.
Ask which specification applies →MIL-DTL-17 (formerly MIL-C-17) — 50 Ω Slash Sheets
The US military general specification for flexible RF coaxial cable, which specifies each model by slash sheet. For the 50 Ω models here the published outline correspondence is M17/155 = RG 58 C/U and M17/74 = RG 213/U, with M17/75 = RG 214/U as a further outline. This is a standards-to-model cross-reference, not a qualification claim for this page.
Ask for the slash-sheet cross-reference →ANSI/SCTE 74 — Braided 75 Ω RF Drop Cable
The North American specification for braided 75 Ω flexible RF coaxial drop cable — the standard family RG6-type drop cable is written against. Where a buyer needs a document, the certificate and test report for the ordered construction are supplied with the quotation; no compliance statement is made on this page without that document.
Ask about 75 Ω drop-cable documents →
Transparency note: certification status and exact scope should always be confirmed against the certificate for the selected construction. We provide the certificate and test reports with every quotation — no blank promises.
Quality & Factory
How a coaxial order is held to specification
The parameter that matters on coax is the one that is easiest to assume and hardest to see: what the inner conductor and the shield layers actually are.
- 1Construction fixed in writing first — impedance family, model, inner conductor material (CCS, BC or tinned copper), dielectric, shield layers with coverage, jacket compound and length are agreed on the drawing before anything is quoted.
- 2Sample and first-article approval — a sample reel is supplied for fit, termination trials and qualification against the drawing before the bulk run starts.
- 3Incoming goods inspection — construction, dimensions and jacket marking are checked against the agreed drawing on receipt, and the record is retained for the reel.
- 4Documentation and traceability — the approved drawing, the sample record and the incoming inspection record are held for the order, and supplied with the shipping documents.
75 Ω
RG6 / RG11 drop cable
50 Ω
RG58 / RG213 RF cable
100%
routine test before shipment
How to Order
From inquiry to delivery in 5 steps
Send Inquiry
Tell us the impedance family (75 Ω or 50 Ω), the model, the length per reel, the jacket compound and the quantity.
Confirm Construction
We confirm the construction — inner conductor material, shield layers and coverage, jacket — and quote within one working day.
Sample Evaluation
Sample length for termination trials, fit and qualification against the agreed drawing.
Production & Inspection
Bulk production on the agreed construction with incoming goods inspection recorded per reel.
Delivery & Support
Reeled and packed to the agreed packaging, with shipping documents and after-sales support.
FAQ
Questions buyers ask before ordering
No. The impedance of a coaxial cable is set by the ratio of inner conductor diameter to dielectric diameter, so a 75 Ω model and a 50 Ω model are physically different cables, not two options of the same thing. Fitting a 75 Ω cable with a 50 Ω connector — or the reverse — leaves a mismatch at every joint, which shows up as reflection and standing waves rather than as an obvious failure. If your system is 75 Ω, order from the 75 Ω family (RG6, RG6 Quad Shield, RG11); if it is 50 Ω, order from the 50 Ω family (RG58, RG213). Tell us which the system is and we will not quote across it.
The deciding factor is attenuation against the run length, not the connector type. Both are 75 Ω, but RG11 carries the larger inner conductor and dielectric (CCS 1.63 mm, LDPE Φ 7.2 mm against CCS Φ 1.02 mm and foam PE Φ 4.57 mm) and is published at 14.3 dB/100 m @ 1000 MHz against 24.8 dB/100 m @ 1000 MHz for standard RG6 — roughly 40% less loss over the same distance, at a larger overall diameter (Φ 10.3 mm against Φ 6.91 mm). For a long backbone or a weak-signal satellite run RG11 is the usual answer; for the drops RG6 is the usual answer. Give us the frequency band and the run length and we will quote both.
CCS is copper-clad steel: a steel core with a copper skin. It is not a copper conductor and is not described as one here. On these 75 Ω models the inner conductor is CCS — Φ 1.02 mm on RG6 and 1.63 mm on RG11 — while the 50 Ω models use tinned copper (RG58, 19 × 0.18 mm) or bare copper (RG213, 7 × 0.75 mm). The published DC resistance of the inner conductor shows the consequence directly: 21.7 Ω/km for RG6 CCS against 6.0 Ω/km for RG213 bare copper. CCS is the standard construction for these drop-cable models and is normally the correct choice for their applications; if you need a bare copper version, say so up front, because it is ordered as a separate item and confirmed on the drawing.
No — quad shield is a construction statement about layer count, not a multiplier. Standard RG6 here has two shield layers: one aluminium/polyester foil at 100% coverage and one aluminium braid 96 × 0.12 mm at 82% coverage. RG6 Quad Shield has four layers: foil ≥ 25%, aluminium braid 80 × 0.12 mm ≥ 60%, foil ≥ 25%, aluminium braid 64 × 0.12 mm ≥ 40%. Each layer is specified on its own because the layers work differently — the foil is the continuous barrier and the braid carries the contact and current path. Adding the coverages together would produce a meaningless number, and we do not publish one. What quad shield changes in practice is mechanical and transfer-impedance behaviour at the joints, which matters in electrically noisy or long satellite runs.
Because attenuation has no meaning without one: coaxial loss rises with frequency, so "0.2 dB" is not a specification until you say at what frequency and over what length. Every attenuation figure here is stated as dB/100 m at a named frequency, for example RG6 at 24.8 dB/100 m @ 1000 MHz and RG213 at 24.3 dB/100 m @ 1000 MHz. Those two numbers are close, but one is a 75 Ω cable and the other is a 50 Ω cable — reading a value without its frequency and its model is how a system gets designed around the wrong cable. The whole page is published in dB/100 m; the dB/100 ft column is not mixed in.
Not as a published statement on this page — we will not put a CPR class letter, a UL file number or a RoHS / REACH claim in writing without the certificate behind it. Where the ordered construction carries a certificate, we supply the certificate and the test reports with the quotation, and you can verify the scope against the document yourself. The standards named on this page (IEC 61196-1, MIL-DTL-17 with its slash sheets, ANSI/SCTE 74) are given as the standards framework the models belong to and as model cross-references, not as certification claims. If a document is a condition of your order, tell us at inquiry stage and we will confirm what is available before you commit.
Neither is published here, and we would rather say so than quote a number we cannot stand behind. Minimum bend radius is not given in the model datasheets referenced on this page, so it is confirmed against the construction drawing for the model and jacket you order. On voltage, the manufacturer publishes test and operating voltages for the 50 Ω models (5 kV / 2.5 kV for RG58, 10 kV / 5 kV for RG213), but those are in-house routine test and operating-voltage figures for the cable construction — they are not a rated voltage or an insulation class for the finished product, so we do not publish them as a product rating. If your application needs a voltage figure, give us the duty and we will confirm it against the drawing.
They do different jobs and are not substitutes. Twisted-pair data cable such as our Cat6A / Cat8 S/FTP shielded data cable carries balanced digital Ethernet at 100 Ω; coaxial cable carries a single-ended 75 Ω or 50 Ω RF signal for video, satellite and radio, where the impedance has to stay matched end to end; fibre carries the long runs and the high-bandwidth backbone where electrical isolation matters. A building typically ends up with all three, and the mistake to avoid is running an RF service over twisted pair or a data service over coax just to reuse a cable route. Tell us the services and we will help lay out which cable goes where.
Need a coaxial sample for qualification?
Tell us the impedance family, the model and the length you need — we reply within one working day.
Get a Free Quote
Send your coaxial cable requirement
The impedance family and the model are the two things we need first; everything else follows from them. Our engineers reply within one working day.
- Impedance family and model: 75 Ω (RG6 / RG6 Quad Shield / RG11) or 50 Ω (RG58 / RG213)
- Inner conductor material if it is critical to you — CCS as standard on RG6 / RG11, or bare copper as a separate ordered item
- Jacket compound (PVC or LSZH), colour and any printing requirement
- Frequency band and run length, so we can quote the attenuation that applies
- Length per reel, packaging (wooden drum / cardboard box / plastic reel), quantity and whether a sample is needed
Inquiry received
Thanks — our engineers will reply within one working day.
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