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Configuration
Cable: Selteq SLL-400 with low loss and UV-resistant PE jacket
Length: 20, 30 meters, or other, on request
Connector A: Telegartner N-type, pin up to 11 GHz, J01020A0127
Connector B: Telegartner N-type, pin up to 11 GHz, J01020A0127
Connector protection: metal covers of connectors on the chain are installed to protect against moisture, dust and dirt
Sealing: heat-shrinkable tube on an adhesive basis
Structurally, cable SLL-400 consists of:
– one-piece central core with a diameter of 2,74 mm made of aluminum wire with a copper coating
– internal dielectric made of foamed polyethylene with a diameter of 7,24 mm.
– the first shielding layer made of aluminum foil
– second shielding layer – braid with 85% filling of tinned copper-plated aluminum
– outer protective shell made of polyethylene (PE) with a diameter of 10.2 mm (0.400 “)
Electrical characteristics of the SLL-400 cable
Wave resistance: 50±2 Ohm
Linear capacitance: 78 pF/m
Relative speed: 85%
Shortening factor: 1,176
Shielding efficiency: ≥ 90 dB
Estimated losses for SLL-400 based cables with connectors
| Frequency, MHz | Losses, dB/20m | Losses, dB/30m | Losses, dB/100m |
| 140 | 1,3 | 1,9 | 6,0 |
| 450 | 2,15 | 3,18 | 10,27 |
| 900 | 3,06 | 4,53 | 14,78 |
| 1500 | 3,98 | 5,92 | 19,4 |
| 1800 | 4,40 | 6,54 | 21,48 |
| 2000 | 4,63 | 6,89 | 22,64 |
| 2400 | 5,28 | 7,88 | 25,92 |
| 3000 | 5,83 | 8,69 | 28,64 |
| 4000 | 6,56 | 9,79 | 32,3 |
| 5000 | 7,44 | 11,06 | 36,2 |
| 5800 | 8,56 | 12,74 | 41,8 |
| 8000 | 9,48 | 14,07 | 45,9 |
| 10000 | 10,56 | 15,69 | 51,3 |
Mechanical characteristics of SLL-400 cable
Installation temperature range: -25...+70o
Operating temperature range: -40...+85o
Minimum bending radius: 25,4 mm
Re-bending radius: 101,6 mm
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