Product Details of Hardline Seamless 565 Trunk Cable

The Hardline Seamless 565 Trunk Cable is a specific and high-performance type of coaxial cable used in critical infrastructure. The designation "565" provides a key piece of information about its size.

Features

1.Seamless Tubular Outer Conductor:The outer conductor is a perfectly smooth, seam-free tube, typically made of aluminum.This eliminates any potential points of weakness, signal leakage, or moisture ingress. It provides 100% shielding effectiveness,A crucial advantage over corrugated or braided cable.
2.Center Conductor:Material is solid copper clad aluminum. This ensures the lowest possible electrical resistance and signal loss. It is held precisely in the center of the cable by foamed Polyethylene.
3. Dielectric: Physically foamed polyethylene

4.Outer Jacket: Black PE (Polyethylene) .This jacket protects the outer conductor from physical damage, corrosion and UV radiation for aerial installations.

5.Impedance: Almost 75 Ohms is standard for CATV/broadcast.

6.Larger Diameter: The increased size of 0.656 inch cable compared to a 0.500 inch cable allows for larger internal components.

Advantages

1.The Lower Signal Loss (Attenuation) in its Class:

This is the single greatest advantage. The combination of the larger diameter and PE

dielectric offers superior attenuation performance. This allows signals to travel much farther between amplifiers, which:

a.Reduces the number of amplifiers needed in a system, lowering overall system noise, cost, and points of failure.

b.Improves signal quality and data rates at the receiving end, which is critical for high-bandwidth 5G and LTE networks.

2. Perfect Shielding and Immunity:

The seamless tubular outer conductor acts as a perfect Faraday cage. It provides complete immunity to external electromagnetic interference (EMI) and prevents any signal from leaking out. This is vital for maintaining signal integrity in dense RF environments and for meeting strict regulatory limits on signal leakage.

3. Environmental Robustness and Longevity:

The seamless outer conductor is inherently waterproof and gas-tight, preventing moisture

from ever entering the dielectric space.This makes the cable incredibly durable and suitable

for decades of long service in a difficult environment.

4.This larger size directly translates to superior electrical performance compared to a 500 trunk cable

Same series of products

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Hardline Seamless 565 Trunk Cable

Material Specification:

Items	Material	Diameter (mm)
Inner Conductorl	Copper Clad Aluminuml	3.28±0.03
Dielectricl	Physical Foam polyethylenel	13.18±0.10
Outer Conductorl	Overlapping Copper Foill	14.35±0.10
Jacketl	Black PEl	15.88±0.20

Electrical Performance:

Impedance	75±2Ω
Capacitance	50.20 PF/m
Velocity	87%
DC Resistance Max@20℃	Inner Conductor Outer Conductor Loop	3.31Ω/km 1.18Ω/km 4.49Ω/km
SRL Min / VSWR Max	5-1002 MHz	30dB / 1.06
SRL Min / VSWR Max	1002-1218 MHz	24dB / 1.13
SRL Min / VSWR Max	1218-1794 MHz	20dB / 1.22
SRL Min / VSWR Max	1794-2250 MHz	20dB / 1.22
SRL Min / VSWR Max	1218-1794 MHz	20dB / 1.22

Mechanical Specification:

Jacket Tensile	≥10.3MPa
Jacket Elongation	≥400%
Min.Bending Radius	127.00mm

Environmental Specification:

Installation Temperature	-40℃~+60℃(PE)
Operating Temperature	-55℃~+85℃(PE)

Attenuation at 20℃ cable temperature:

Frequency (MHz)	Attenuation Typical (dB/100m)
5	0.46
55	1.54
211	3.12
250	3.38
270	3.51
300	3.7
330	3.91
350	4.03
400	4.33
450	4.59
500	4.89
550	5.12
600	5.38
750	6.07
870	6.59
1002	7.12
1218	7.94
1500	8.92
1794	9.87
1800	9.89
2000	10.5
2200	11.09
2500	11.93
2700	12.48
3000	13.26

*The attenuation is typical value, Maximum value shall be 105% of the nominal attenuation value.

Question: What is a Hardline Seamless Trunk 565 Cable?

Answer:

This is a premium, rigid coaxial cable designed for the core backbone ("trunk") of large-scale signal

distribution systems.

1. Hardline: Indicates it is a rigid, non-flexible cable with a smooth, tubular outer conductor, as opposed

to a flexible cable with a braided shield.

2. Seamless: This is a critical feature. It means the outer conductor is formed from a seamless copper or

aluminum tube.

3. Trunk: Denotes its use in the main arterial network of a system.

4. 565: This is the most important spec. It refers to the 0.565 inch (approx. 14.35 mm) outer diameter.

This larger size directly translates to superior electrical performance compared to a 0.500 inch cable.

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Hardline Seamless Trunk Cable 565