兄弟偶新房装修，许下大愿要把偶的书房打扮成：电脑室+电台室+电子试验室......
偶的房子在7楼书房朝南，有三个阳台，计划向每个阳台均预放2根馈线（25mm-pvc穿管埋地），最长的11米最短5米，等待时机找个物业不注意的方向上楼顶（11楼），平时也可以玩玩渔杆天线/wifi天线/uv天线什么的！
原准备购进occ馈管（下列）用于预放！但有哥们强烈要求偶用特富龙-5馈线，还准备赠送！
兄弟对线材不是太了解！请各位老大帮忙指点一下，用馈管好呀？还是用特富龙线好呀？
急！工人正在埋管中...... 
日本进口occ馈管/50欧阻抗/计价格单位：15.5元/米 30米以上免运费，30米以下运费20元/次
50-ohm low loss super flexible foam dielectric cable hfccf type
for mobile radio, microwave transporter, and the other communication systems, occ have developed variety of lower loss super flexible foam dielectric (hfccf) cable.
features
-ultra low attenuation
-excellent v.s.w.r.
-high flexibility
cable construction and characteristics
item 8d (3/8")
inner conductor diameter (mm)(copper clad aluminum)
2.8
insulation diameter (mm)(foam polyethylene) approx. 7.0
outer conductor diameter (mm)(corrugated copper) 9.5
jacket diameter (mm)(polyethylene) 10.5
approx. weight (kg/km) 130
characteristics impedance () 501
dielectric strength (v) 1,000
insulation resistance (m-km)
more than 1,000
nominal velocity (%) 82
nominal attenuation(db/km) 470mhz
90
700mhz 111
1,000mhz 135
2,000mhz 198
2,200mhz 209
3,000mhz 250
