High quality
cables

Both indoor and outdoor

Cables

DKT provides an extensive range of coaxial cables for indoor and outdoor installation, most of these being manufactured by Cavel. Cavel has produced cables since 1968, and offers a 15 year warranty on its Cavel branded cables. All cables have 75 Ohm impedance, which is suitable for CATV networks.

To select the correct coaxial cable one must first know if the cable will be installed indoor or outdoor, including underground installation. Below are two tables, one for each installation environment.

Next there are two important parameters; the signal attenuation along the cable and the screening attenuation.

The signal attenuation along the cable is typically stated as dB per 100m.

This attenuation is frequency dependent where the attenuation increases approximately in accordance with the square root of the frequency. The attenuation is primarily specified by the thickness of the cable’s inner conductor. The thicker the inner conductor, the lower attenuation.

The screening attenuation is a measure of how well the cable is isolated against airborne RF signals, for example those from mobile phones. The screening attenuation is primarily specified by the construction of the outer conductor, typically consisting of a sheath metal foil, a braiding of thin metal wires, and perhaps yet another sheath metal foil. For coaxial cables the class of screening attenuation is defined in the EN-50117 series. Here Class A++ is the best screening attenuation, followed by Class A+, Class A, Class B, and Class C. The Class A screening attenuation is a minimum of 85 dB in the frequency range 30-1000 MHz. This is typically sufficient to isolate a DVB-C signal from unwanted noise.

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Outdoor Cables – Table

1 The dimensions are the diameter of Inner Conductor / Dielectric / Outer Sheath.
2 Attenuation at 1GHz of a 100m long cable.

Type Number
Item Number
Details
File

DKT SAT 1S

00100

250m
1.63 / 7.2 / 10.1mm
13.0dB/100m (1000MHz)
Class A
Fireclass Fca

DKT SAT 1S

00106

500m
1.63 / 7.2 / 10.1mm
13.0dB/100m (1000MHz)
Class A

DG163ZH

00130

500m
1.63 / 7.2 / 10.1mm
13.0dB/100m (1000MHz)
Class A+

DKT 22/99 FC

00614

250m
2.20 / 9.9 / 12.7mm
9.8dB/100m (1000MHz)
Class A

DKT 22/99 FC

00615

500m
2.20 / 9.9 / 12.7mm
9.8dB/100m (1000MHz)
Class A

DKT 22/99 ZH

00631

250m
2.20 / 9.9 / 12.7mm
9.8dB/100m (1000MHz)
Class A

DKT 17/73 FC

00616

250m
1.63 / 7.2 /10.1mm
12.8dB/100m (1000MHz)
Class A

DKT 11/48L-Light

00618

500m
1.13 / 4.8 / 7.3mm
18.5dB/100m (1000MHz)
Class A

DKT 11/48

00619

500m
1.13 / 4.8 / 7.3mm
18.5dB/100m (1000MHz)
Class A

DKT 11/48

00633

250m
1.13 / 4.8 / 7.3mm
18.5dB/100m (1000MHz)
Class A

DKT 11/48

00622

100m
1.13 / 4.8 / 7.3mm
18.5dB/100m (1000MHz)
Class A

DKT 11/48+Pipe

00635

400m
1.13 / 4.8 / 7.3mm
18.5dB/100m (1000MHz)
Class A

DKT 34/145 FC

00621

700m
3.40 / 14.5 / 19.8mm
6.9dB/100m (1000MHz)
Class A

DKT 34/145 ZH

00640

500m
3.40 / 14.5 / 19.8mm
6.9dB/100m (1000MHz)
Class A

Coax4 CT22 S

00823

1000m
2.20 / 8.8 / 12.3mm
9.8dB/100m (1000MHz)
Class A++

Coax3 CT33 S

00833

500m
3.30 / 13.3 / 17.1mm
6.5dB/100m (1000MHz)
Class A++

Coax2 CT48 S

00848

500m
4.75 / 19.4 / 24.9mm
4.8dB/100m (1000MHz)
Class A++

Indoor Cables

1 The dimensions are the diameter of Inner Conductor / Dielectric / Outer Sheath.
2 Attenuation at 1GHz of a 100m long cable.

Type Number
Item Number
Details
File

DKT SAT 1H

00105

250m
1.63 / 7.2 / 10.1mm
13.0dB/100m (1000MHz)
Class A

DG113ZHW-S100

00236

100m
1.13 / 4.8 / 6.6mm
18.5dB/100m (1000MHz)
Class A+

DG113ZHW-S250

00238

250m
1.13 / 4.8 / 6.6mm
18.5dB/100m (1000MHz)
Class A+

DG113ZH G

00753

100m
1.13 / 4.8 / 6.6mm
18.5dB/100m (1000MHz)
Class A+

DG136SOHW-100-BF

00395

Coax cable, white, PEG, 5x100, plastic reel
1.13/4.8-Ø 6.9 mm
Zero Halogen - Class A - bonded foil

DG136SOHW-250-BF

00396

Coax cable, white, PEG, 2x250, plastic reel
1.13/4.8-Ø 6.9 mm
Zero Halogen - Class A - bonded foil

DG136SOHW-R100-BF

00398

Coax cable, white, PEG, 6x100, rings
1.13/4.8-Ø 6.9 mm
Zero Halogen - Class A - bonded foil

Cavel CW41 S OHW

00720

100m
0.41 / 1.9 / 4.3mm
48.7dB/100m (1000MHz)
Class A

Cavel CW41 S OHW

00725

250m
0.41 / 1.9 / 4.3mm
48.7dB/100m (1000MHz)
Class A

DG80OHW

00731

100m
0.80 / 3.5 / 5.0mm
25.5dB/100m (1000MHz)
Class A

DG80OHW

00732

250m
0.80 / 3.5 / 5.0mm
25.5dB/100m (1000MHz)
Class A

DG123OHW

00752

100m
1.13 / 4.8 / 6.6mm
18.6dB/100m (1000MHz)
Class A

DG123OHW

00759

500m
1.13 / 4.8 / 6.6mm
18.6dB/100m (1000MHz)
Class A

10M-DG136OHW

20230

10 M Coax cable, rolled up, white

100M-DG136OHW

20240

100 M Coax cable, rolled up, white

25 M-DG136OHW

20245

25 M Coax cable, rolled up, white

Indoor Cables – On request

1 The dimensions are the diameter of Inner Conductor / Dielectric / Outer Sheath.
2 Attenuation at 1GHz of a 100m long cable.

Type Number
Item Number
Description
File

DG135SOHW-100-BF

00390

100m
1.13 / 4.8 / 6.7mm
18.9dB/100m (1000MHz)
Class A

DG135SOHW-250-BF

00392

250m
1.13 / 4.8 / 6.7mm
18.9dB/100m (1000MHz)
Class A

DG136OHW-S100

00370

100m
1.13 / 4.8 / 6.9mm
18.9dB/100m (1000MHz)
Class A

DG136OHW-R100

00371

100m
1.13 / 4.8 / 6.9mm
18.9dB/100m (1000MHz)
Class A

DG136OHW-S250

00372

250m
1.13 / 4.8 / 6.9mm
18.9dB/100m (1000MHz)
Class A

DG136OHW-R25

00374

25m
1.13 / 4.8 / 6.9mm
18.9dB/100m (1000MHz)
Class A

DG123OHW

00756

250m
1.13 / 4.8 / 6.6mm
18.6dB/100m (1000MHz)
Class A

DoP

Type Number
Item Number
File
 

DG163ZH

00130

 

DG113ZHW

00236/00238

 

DG136OHW

00370/00372

 

DKT 22/99 FC

00614/00615

 

DKT 17/73 FC

00616

 

DKT 34/145 FC

00621

 

DKT 11/48

00622/00633

 

DKT 22/99 ZH

00631

 

DKT 11/48+Pipe

00635

 

Cavel CW41 S OHW

00720

 

DG80OHW

00731

 

DG123OHW

00752-00759

 

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The Signia Line all have nickel-tin plated brass connectors. This leads to a minimum failure rate.

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Screening Attenuation – when enough is enough

This white paper describes the requirements to screening attenuation of cables and other components in the CATV coaxial networks.

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