Component communication solution expert

Introduction Anyone who has tried streaming in a back room or setting up a Wi-Fi camera outdoors knows the pain: the router stays inside, but the antenna ends up stuck in a poor spot. That’s when a WiFi antenna extension cable can save the day. Instead of relocating the entire device, you simply shift the antenna to a higher or clearer location—and often the difference in coverage is immediate. Naturally, people ask the same questions: Do WiFi router antenna extension cables really work? and Are they worth it? The answer is yes, when chosen correctly. The details matter though—things like RP-SMA vs SMA polarity, coax construction, and how much loss comes with each cable type. For instance, an rg174 extension cable (2.85 mm OD, 50 ±2 Ω) is flexible and widely available, but it introduces about 0.82 dB of loss per meter at 2.4 GHz. RG178, slimmer at 1.8 mm, handles –55 °C to +200 °C and uses silver-plated copper conductors, while LMR-100 keeps loss much lower (roughly 0.49 dB per meter at 2.4 GHz) thanks to its dual shielding.

ntroduction When your Wi-Fi cuts out during a call or your GPS suddenly drifts off course, the antenna itself isn’t always to blame. More often, the weak link is the cable connecting the antenna to the device. Adding an antenna extension cable gives you the freedom to place the antenna where it works best—higher on a wall, above a cabinet, or even outdoors. That extra height can dramatically improve line of sight (LoS) and reduce the multipath reflections that plague indoor signals. Of course, nothing in RF is free. Every coax introduces loss. A slim option like RG174, just 2.85 mm in diameter, can drop about 1.5 dB per meter at 2.4 GHz and closer to 2.5 dB at 5.8 GHz. Stretch it to 3 m, and you’ve already given up a significant share of usable power. By comparison, LMR200 holds losses to roughly 0.5 dB/m, while LMR240 trims it further to just 0.25 dB/m at 2.4 GHz. In practice, that difference can decide whether a 10 m

1) Introduction Have you ever tucked a router into a cabinet, only to realize the antenna is in the worst possible spot? Or perhaps tried running GPS in a car, only to notice the reception dip due to all the metal? The easiest fix isn’t swapping out the antenna or redesigning your entire setup—it’s as simple as adding an SMA extension cable. These coaxial extensions, available in both SMA and RP-SMA versions, let you move antennas to positions that enhance reception. In practice, this small adjustment can determine whether your Wi-Fi stays strong or your FPV feed drops mid-flight.