RF Coaxial Cable 7/8 Aluminium Feeder Cable structure size

project	diameter	material
Inner conductor	9.4mm	Spiral wrinkle copper tube
Insulator	21.5mm	Foamed polyethylene
Outer conductor	25.0mm	Ring wrinkle copper tube
jacket	27.5mm	Polyethylene / flame retardant polyolefin

RF Coaxial Cable 7/8 Aluminium Feeder Cable Mechanical behavior

project	standard	Remarks
Static minimum bending radius	80mm	Single bending
Dynamic minimum bending radius	125mm	Repeated bending 15 times
Tensile force	2000N
Cable weight	500 (550) kg/km

RF Coaxial Cable 7/8 Aluminium Feeder Cable Electrical performance

project	standard	Remarks
Characteristic impedance	50±1Ω
Transmission ratio	88%	Nominal value
Minimum insulation resistance	500MΩ km	DC500V 1 minute
capacitance	76pF/m	Nominal value
Withstand voltage	DC6000V	1 minute
Rated peak power	90KW
Peak voltage	3100V
Typical voltage standing wave ratio	1.08	800M~1000MHz
	1.08	1700M~2000MHz
	1.08	2100M~2400MHz

RF Coaxial Cable 7/8 Aluminium Feeder Cable Attenuation coefficient and rated average power

frequency	attenuation	Average power
10	0.39	21.5
100	1.29	5.60
150	1.59	5.40
200	1.85	4.60
300	2.29	3.70
450	2.85	3.00
500	3.02	2.82
700	3.62	2.39
800	3.89	2.20
900	4.15	2.07
1000	4.40	1.95
1500	5.52	1.55
1700	5.92	1.45

 

frequency	attenuation	Average power
1800	6.12	1.40
1900	6.31	1.35
2000	6.49	1.31
2100	6.68	1.28
2200	6.86	1.25
2400	7.22	1.20
2500	7.38	1.17
2700	7.72	1.10
3000	8.20	1.04
3400	8.84	0.98
4000	9.74	0.89
5000	11.13	0.78