Enhance your communication experience with this high-performance Stretch Antenna, designed for durability and optimal signal reception. Crafted from quality metal material, this antenna offers excellent anti-wear properties and a long service life, making it a reliable choice for various radio and interphone applications. The versatile design includes a freely stretchable main antenna and an interchangeable short antenna, providing flexibility to suit different usage needs. Its lightweight and compact construction ensures easy portability and convenient storage, perfect for both professional and personal use. Key Features: · Durable Metal Construction: Made from high-quality metal, the antenna is resistant to wear and built to last, ensuring long-term reliability. · Stretchable Design: The main antenna extends up to 85.5 cm (33.7 in) for enhanced signal reception and can be contracted to 24.5 cm (9.6 in) for compact storage. · Replaceable Short Antenna: Comes with a short antenna that can be swapped as needed, offering adaptability for different signal environments. · High Gain Performance: Provides 3.2 dB gain on VHF (144 MHz) and 5.6 dB gain on UHF (430 MHz), enabling reception of a wider range of signals with improved clarity. · Lightweight and Compact: Easy to carry and store, making it an ideal accessory for mobile communication devices. · Versatile Connector Options: Available with SMA male or female heads and BNC connector, compatible with a variety of radio equipment. · Reliable Electrical Specifications: Features 50 Ω impedance, 10W power resistance, and a standing wave ratio (SWR) below 1.5 for efficient signal transmission. Specifications: · Material: Metal · Model: AL800 Interphone Antenna · Frequency Range: 144/430 MHz · Stretch Length: 85.5 cm (33.7 in) · Contractive Length: 24.5 cm (9.6 in) · Gain: 3.2 dB (VHF) / 5.6 dB (UHF) · Impedance: 50 Ω · Power Resistance: 10W · Standing Wave Ratio: < 1.5 · Interface: SMA male head, SMA female head · Power: 50W Max · Connector: BNC · Optional Style: Male Head, Female Head Package Includes: · 1 x Stretch Antenna · 1 x Short Antenna This Stretch Antenna is an excellent solution for improving signal reception on interphones and radios, combining durability, high gain, and portability in one practical package.