P3 500 Cefnffordd
Paramedrau Adeiladu
Arweinydd Mewnol | 0.124/3.15+0.01mm Pure Copper |
Dielectric | 0.514/13±0.05mm Foam PE |
Amddiffyn | 0.0135/0.343mm Alwminiwm Tube |
Siaced | 0.0135/15.5±0.2mm PVC |
Trwch Jacket | 0.035/0.8mm |
Nodweddion Trydanol
Ymwrthedd DOLEN DC | 1.61W/1000tr(5.28W/km ) |
Gallu | 15.3±1pF/ft(50±3nf/km) |
Impedance | 75± 2Ω |
Cyflymder Lluosogi | 88% |
Gwanhau(20°C)
Amlder(MHz) | Gwanhau(dB/100FT) | Gwanhau(dB/100M) |
5 | 0.14 | 0.46 |
55 | 0.47 | 1.54 |
83 | 0.58 | 1.9 |
211 | 0.95 | 3.12 |
250 | 1.03 | 3.38 |
300 | 1.13 | 3.71 |
350 | 1.23 | 4.03 |
400 | 1.32 | 4.33 |
450 | 1.4 | 4.59 |
500 | 1.49 | 4.89 |
550 | 1.56 | 5.12 |
600 | 1.64 | 5.38 |
750 | 1.85 | 6.07 |
865 | 2.00 | 6.56 |
1000 | 2.17 | 7.12 |
Cais
Defnyddir cebl tiwb alwminiwm QR540 ar gyfer cefnffordd CATV a lloeren ddarlledu uniongyrchol DBS.
Tagiau poblogaidd: t3 500 o gefnffordd, Tsieina, gweithgynhyrchwyr, cyflenwyr, ffatri, cyfanwerthu, arfer, Fietnam
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