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LMR-300 is a high-performance and widely used 50 ohm coaxial cable. It achieves a very good balance between wear and tear, flexibility, and outer diameter size. For mid-range wireless communication applications that require lower losses than thin cables (such as LMR-240/RG-8X) but also want to be softer or slightly cheaper than LMR-400 (such as base station jumpers, amateur radio feeders, mid-range Wi Fi antenna feeders, etc.), LMR-300 is a very reliable and popular choice. Be sure to purchase genuine products and install connectors correctly when choosing.
| Structure parameters | ||
| Item | Material | Diamenter (mm) |
| Inner Conductor | Copper clad aluminum wire | 1.78 |
| Dielectric | PTFE | 4.83 |
| Outer Conductor | Tin plated copper wire weaving | 5.72 |
| Sheath | PE | 7.62 |
| Performance parameters | ||
| Capacitor | 79.1pF/m | |
| Impedance | 50ohm | |
| Transmission rate | 85% | |
| Internal conductor DC resistance | 7.28 ohm/m | |
| Outer conductor DC resistance | 7.62 OHM/m | |
| Maximum operating voltage | 5000Vrms | |
| Maximum operating frequency | 10000MHz | |
| Working temperature range | -40～+80℃ | |
| Bending radius | 38mm | |
| ROHS/CE/FCC | YES | |
| Frequency | 30MHz | 3.5dB/m |
| 50MHz | 4.5dB/m | |
| 150MHz | 7.9dB/m | |
LMR300 coaxial cable impedance: 50 Ω or 75 Ω (different models),
Shielding method: metal braided shielding or multiple shielding, strong anti-interference ability,
Temperature resistance range: some models support working temperatures from -65 ° C to+155 ° C,
Transmission frequency: up to 6GHz, suitable for high-frequency signal transmission. Typical application scenarios,
Wireless communication: such as mobile phone signal amplifier feeders, base station connections, etc;
Public safety and military industry: scenarios that require high stability and anti-interference capabilities;
Broadcasting and Railway: Used for video signal transmission and indoor distribution systems
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