Chameleon Antennas CHA LEFS 4010 Lightweight End Fed Sloper

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Chameleon Antennas CHA LEFS 4010 Lightweight End Fed Sloper

Introducing the CHA LEFS 4010: a versatile HF antenna designed to enhance your outdoor radio experiences. This antenna operates across four bands – 40, 20, 15, and 10 meters – in the Amateur Radio Service (ham), expanding to seven bands with a tuner. Whether you're into Parks on the Air (POTA), Summits on the Air (SOTA), hiking, biking, or other outdoor adventures, the CHA LEFS 4010's compact form, light weight, and broad band coverage make it an optimal choice. Forget about carrying a tuner and SWR meter; simply pack your radio and the CHA LEFS 4010, and embark on activating parks or summits effortlessly.


Tailored for outdoor pursuits, the CHA LEFS 4010 boasts an End Assembly that's lightweight and equipped with an integrated line winder. Its high-efficiency impedance matching network transformer (49:1), ultra-thin 20 gauge antenna wire, and micro-size RG-316 coaxial cable (Optional) establish the CHA LEFS 4010 as the perfect companion for pocket-sized QRP (LOW-POWER 100W SSB & 50W CW & 25W DATA) transceivers. Installation is a breeze, with no need for a tuner or ongoing adjustments on the entire 40, 20, 15, and 10 meter ham bands (extendable to 30, 17, and 12 meters with a tuner).


When it's time to hit the trail, you'll appreciate the CHA LEFS 4010's space-saving design. Measuring only 6 1/2 inches in length, 3 3/4 inches in width, and weighing a mere 1.1 pounds, it won't burden your backpack. Versatile usage options abound – attach it to a lightweight telescopic fishing or kite pole to deploy it as a Sloper. Additionally, it can be configured to facilitate Near-Vertical Incident Skywave (NVIS) communication.

• Frequency:


7.0 - 7.3 MHz (40m)

14.1 - 14.35 MHz (20m)

21.0 – 21.45 MHz (15m)

28.0 – 29.7 MHz (10m)


• SWR (frequency ranges listed above): Typically, less than 2.0:1

• Power: 100W SSB, 50W CW, 25W DATA

• RF Connection: BNC Socket

• Length: 65 ft Tinned Copper PTFE (Teflon) (-70°C to 150°C)

• Ratio 49:1

• Weight: 1.0 lbs

The antenna system consists of:
1 X CHA LEFS (≈65' long - 20 Gauge Tinned Copper PTFE (Teflon) (-70°C to 150°C) wire)

1 X OD Pouch


1 X RG-316 (25' with RFI Choke) 

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