Product Hierarchy
Product Hierarchy

1856B - Video Triax, RG59, #20 Solid, Belflex jacket, CMR/CMG

1856B-Video Triax, RG59, #20 Solid,

20 AWG solid .032" bare copper conductor, gas-injected foam HDPE insulation, bare copper braid shields (95% coverage), Belflex jacket.

Product Overview

Environmental Space: Indoor/Outdoor

Physical Characteristics (Overall)

AWGStrandingMaterialNominal DiameterNo. of Coax
20SolidBC - Bare Copper0.032 in1
Conductor Count: 1
AWG Size: 20
MaterialNominal Diameter
Gas-injected FHDPE - Foam High Density Polyethylene0.145 in
Inner Shield Material
TypeMaterialCoverage [%]
BraidBC - Bare Copper95 %
Inner Jacket Material
MaterialNominal Diameter
PVC - Polyvinyl Chloride0.216 in
Outer Shield Material
TypeMaterialCoverage [%]
BraidBC - Bare Copper95 %
Outer Jacket Material
MaterialMaterial Trade NameNominal Diameter
PVC Blend - Polyvinyl Chloride BlendBelflex®0.36 in

Electrical Characteristics

Conductor DCR
Nominal Conductor DCRNominal Conductor DCR Conductor ResistanceNominal Inner Shield DCRNominal Outer Shield DCR
10.1 Ohm/1000ft10.1 Ohm/1000ft2.5 Ohm/1000ft1.6 Ohm/1000ft
Nom. Capacitance Conductor to Shield
16.2 pF/ft
Nominal Inductance
0.097 µH/ft
Nominal Characteristic Impedance
75 Ohm
Return Loss (RL)
Frequency [MHz]Min. Structural Return Loss (SRL)
5-850 MHz21 dB
850-3000 MHz15 dB
High Frequency (Nominal/Typical)
Frequency [MHz]Nom. Insertion Loss
1 MHz0.3 dB/100ft
3.6 MHz0.6 dB/100ft
10 MHz0.8 dB/100ft
71.5 MHz2.2 dB/100ft
135 MHz3 dB/100ft
270 MHz4.2 dB/100ft
360 MHz4.8 dB/100ft
540 MHz5.9 dB/100ft
720 MHz6.9 dB/100ft
750 MHz7.1 dB/100ft
1000 MHz8.8 dB/100ft
1500 MHz12 dB/100ft
2250 MHz16.4 dB/100ft
3000 MHz20.4 dB/100ft
Nominal DelayNominal Velocity of Propagation (VP) [%]
1.22 ns/ft83 %
Non-UL Voltage RatingUL Voltage Rating
300 V RMS300 V RMS

Temperature Range

Non-UL Temp Rating: 75°C
UL Temp Rating: 60°C
Operating Temp Range: -35°C To +75°C

Mechanical Characteristics

Bulk Cable Weight: 81 lbs/1000ft
Max Recommended Pulling Tension: 124 lbs
Min Bend Radius/Minor Axis: 3.75 in


NEC/(UL) Specification: CMR
CEC/C(UL) Specification: CMG
RG Type: RG-59/U Type

Applicable Environmental and Other Programs

EU Directive 2000/53/EC (ELV): Yes
EU Directive 2011/65/EU (ROHS II): Yes
EU Directive 2012/19/EU (WEEE): Yes
EU Directive 2015/863/EU: Yes
EU Directive Compliance: EU Directive 2003/11/EC (BFR)
EU CE Mark: No
EU RoHS Compliance Date (yyyy-mm-dd): 2004-01-01
CA Prop 65 (CJ for Wire & Cable): Yes
MII Order #39 (China RoHS): Yes


Suitability - Indoor: Yes
Suitability - Outdoor: Yes

Flammability, LS0H, Toxicity Testing

UL Flammability: UL1666 Vertical Shaft

Part Number

Plenum (Y/N): No
Footnote: C - CRATE REEL PUT-UP.
Date: 2004-01-01