Description
EFHW-4010-LP- 250W
Portable or Stationary Multi-Band End Fed Half Wave Antenna/
This is a 250W version of the popular EFHW-4010-1K+ End-Fed Half-Wave (EFHW*) antenna for 40/20/15/ and 10m bands. Featuring an optimized MEF-130-LP transformer with an average insertion loss of only -0.4 dB (~9% loss) compared to similar products on market with insertion loss as high as -1.5dB (~30% loss). Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. It is a resonant Half wave on 40m (7.1MHz) and therefore also resonant on second, third, fourth, etc. harmonics. 
*This is perfect antenna for ALE HF-link stations, NVIS, MARS, ARES, EMCOMM etc.
Various installations such as horizontal, vertical, inverted V, inverted L, etc. are possible. Measured VSWR in the gallery are taken with the antenna horizontal at 25 feet above the ground, your values could vary with the way and height of installation.
- NO TUNER is needed!
- NO counterpoise is needed!
- Frequency coverage: 7-30MHz
- Resonant on 40/20/15/ and 10M
- Wire length ~63 feet
- Power Handling: 250W I.C.A.S
- Digital Modes, FT8 100W max.
- Stainless Steel hardware
- Stealth #16 AWG black wire
- Connector: Silver/Teflon SO-239
*Grounding of the coaxial cable at the radio side is recommended for the protection of your equipment from an electrostatic buildup in order to prevent ESD- electrostatic discharge.
NOTE: grounding does not affect antenna tuning.
*Amateur Radio Emergency Service® (ARES), ALE-Automatic Link Establishment (HFlink), MARS-The U.S. Army Military Auxiliary Radio System (AMARS), NVIS
Kayden –
Took a hot minute to get it high enough to get an acceptable swr, but I got it. It’s about 11-15 feet off the ground in an L configuration. Began picking up signals right away and made a contact on 40m ssb soon after. For the price it’s hard to beat. Just be patient, it can take a minute to get it right.
Calvin –
Great antenna!
Well made and easy installation. In addition to designed 40m through 10m, I can tune 80m and 6m using a tuner. Perfect for HOA restricted neighborhoods. Highly recommend MyAntennas.