Chameleon LEFS 4010 – Light End Fed Sloper

Chameleon LEFS 4010 works on 40M 20M 15M and 10M – No Tuner Needed

The Chameleon LEFS 4010 is 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 Chameleon 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 Chameleon LEFS 4010, and embark on activating parks or summits effortlessly.

Tailored for outdoor pursuits, the Chameleon 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 Chameleon 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 Chameleon LEFS 4010’s space-saving design. Measuring only 16.5 cm (6 1/2 inches) in length, 9.5 cm (3 3/4 inches) in width, and weighing a mere 500 grams (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.

Antennas crafted by Chameleon Antenna are not only dependable but also versatile, stealthy, and engineered for durability. To make the most of your Chameleon LEFS 4010, be sure to peruse the operator’s manual. Elevate your outdoor radio endeavours with the Chameleon LEFS 4010’s exceptional performance and convenience.

Chameleon LEFS 4010 Specifications

• 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: 19.8 meter (65 ft) Tinned Copper PTFE (Teflon) (-70°C to 150°C)
• Ratio 49:1
• Weight: 454 gram (1.0 lbs)

Chameleon LEFS 4010 antenna system consists of

• 1 X CHA LEFS (≈ 19.8 meter (65′) long – 0.9mm (20 Gauge) Tinned Copper PTFE (Teflon) (-70°C to 150°C) wire)
• 1 X OD Pouch

Optional Accessories

• 1 X RG-316 (25′ with RFI Choke)

USER GUIDE