This product is a CD387 black cable-fed external antenna. It adopts the classic CD387 standard housing design, featuring a sleek black exterior with a solid, durable feel. The housing is abrasion-resistant, scratch-resistant, anti-aging, and resistant to fading and deformation, offering excellent weather resistance for long-term indoor and outdoor device installation. Inside, the antenna incorporates a copper tube + spring composite radiation structure, providing stable and robust construction, precise frequency matching, and consistent RF impedance. This effectively reduces signal transmission loss, enhances antenna receiving sensitivity and signal penetration, and delivers uniform and stable signal transmission and reception. It effectively resolves common wireless communication issues such as stuttering, weak signals, and dropped connections over long distances, ensuring sustained and stable device communication.

The antenna comes standard with RG178 transparent brown dual-silver high-quality cable. The dual-silver shielding structure offers significantly superior shielding performance compared to ordinary cables, providing exceptionally strong EMI suppression capability. It delivers low high-frequency transmission loss and high signal purity, effectively resisting interference from internal device circuits and external complex electromagnetic environments, eliminating signal degradation and stray noise. The transparent brown cable jacket offers excellent flexibility, bending resistance, pull resistance, and resistance to cracking or breakage, accommodating various long- and short-distance wiring requirements. The standard exposed cable length is 480mm, providing ample length with uniform dimensions suitable for multiple device installation scenarios. No secondary splicing is required, making assembly simple and convenient. With mature overall craftsmanship and consistent batch quality, this antenna is widely compatible with IoT modules, industrial data transmission equipment, smart terminals, and wireless communication devices for signal enhancement.