LMR-300 Amphenol Times Microwave Systems

　　Advantages of the Amphenol Times Microwave LMR-300

　　In short: It delivers near semi-rigid cable performance while providing installation flexibility and excellent cost-effectiveness. Its core value lies in the optimal balance between low loss and ease of use.

　　⚙️ Excellent Performance: Low Loss & High Shielding

　　Very Low Signal Attenuation: Compared to traditional RG-series cables (e.g., RG-8, RG-213), the LMR-300 has significantly lower loss, especially at higher frequencies:

　　@150MHz: 7.9 dB/100m

　　@450MHz: 13.8 dB/100m

　　@900MHz: 19.9 dB/100m

　　@2.5GHz: 34.2 dB/100m

　　@6GHz: 54.2 dB/100m

　　>90 dB Shielding Effectiveness: Its unique double shielding (bonded aluminum foil + tinned copper braid) provides over 90 dB of shielding effectiveness, effectively resisting external electromagnetic interference (EMI) and ensuring signal integrity.

　　🛠️ Flexible & Durable: Easy Installation & Outdoor Longevity

　　Excellent Bendability: Minimum bend radius is only 22.2 mm (approx. 0.87 inches) – much more flexible than corrugated copper cables of similar performance, making installation and routing in tight spaces very convenient.

　　Designed for Outdoor Use: The standard version uses a black polyethylene (PE) jacket with excellent UV resistance and weatherability. It can be directly exposed to outdoor environments and offers a service life of up to 20 years.

　　Wide Operating Temperature: Works stably across a broad temperature range from -40°C to +85°C, suitable for various harsh environments.

　　🧩 Wide Applications & Easy Selection – Meeting Diverse Needs

　　Quick Connector Installation: The LMR series is known for its easy connector installation, greatly saving installation time and cost compared to traditional corrugated cables.

　　Covers Mainstream Applications: Due to its outstanding overall performance, LMR-300 is widely used in:

　　Wireless communication systems (antenna jumpers, short feeder lines)

　　Mobile communications (base stations, DAS)

　　Data transmission (Wi-Fi, WISP, GPS, satellite communications)

　　Private networks (public safety, SCADA)

　　RFID systems

　　Multiple Variants Available: In addition to the standard black PE version, Amphenol Times offers several application-specific variants:

Variant	Jacket Material	Key Feature	Typical Application
LMR-300 (Standard)	PE	UV-resistant, outdoor-rated, 20-year life	General outdoor use
LMR-300-DB	PE	Water-blocking – gel in connector area	High-humidity or water-prone outdoor areas
LMR-300-FR	FRPE	Low smoke zero halogen, flame-retardant	Indoor, mines, high-safety environments
LMR-300-PVC	PVC	Softer, lower cost	General indoor equipment connections

💎 Summary

In short, the LMR-300 offers strong performance, easy installation, and rugged durability in a medium-sized 50-ohm coaxial cable. If you’re selecting RF cables for your project, especially as a drop-in upgrade for traditional cables like RG-8 or RG-213, the LMR-300 is an ideal choice that balances performance, cost, and convenience.