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Products

QR540

Name:QR500

Model:QR540

Despcriptions:

型号 Model		QR320	QR412	QR500	QR540
型号 Model		SYWLY-75-7	SYWLY-75-9	SYWLY-75-12	SYWLY-75-13
结构参数Structural Parameter
内导体 Inner Conductor(mm)		1.80	2.15	2.77	3.15
绝缘体 Dielectric(mm)		7.47	9.00	11.50	13.00
外导体 Outer Conductor(mm)		8.15	9.80	12.30	13.80
外护套 Jacket(mm)		10.03	11.80	14.80	16.10
自承索 Steel Messenger(mm)		1.60	1.83	2.77	2.77
电气性能 Electrical Performance
最大衰减 Attenuation (20℃) (dB/100m)	5MHz	1.30	1.00	0.60	0.50
	50MHz	3.00	2.30	1.70	1.50
	200MHz	6.40	4.50	3.50	3.00
	550MHz	10.70	8.00	6.00	5.20
	800MHz	13.30	9.90	7.40	6.30
	1000MHz	15.10	11.30	8.50	8.00
结构回波损耗 SRL(dB, min)	VHF	20
结构回波损耗 SRL(dB, min)	UHF	18
传输速率 Velocity (%)		85	85	86	86
额定电容 Nominal Capacitance (pF/m)		52±3	52±3	50±3	50±3
特性阻抗 Characteristic Impedance(Ω)		75±2