ANjo | EFW80-10 : 5 (7) band multiband wire antenna for 80+40+(+20)+(+17)+15+12+10 m

EFwire: End-fed multiband wire antennas

For the shortwave amateur bands

End-fed multiband wire antenna for 5 (7) shortwave bands

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Product image: 5 (7) band multiband wire antenna for 80+40+(+20)+(+17)+15+12+10 m

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Technical specifications

Line: Standard
Frequency: 80 + 40 + (20) + (17)
15, 12, 10 m
Connection: SO239 UHF socket
Resilience: 400 W PEP
Note on load capacity: For normal SSB/CW operation with a transmit/receive ratio of 50/50%, the specified power applies without restriction. For digital modes, the power is equivalent to 100 watts.
Weight: 1,27 kg
Lenght: ~41 m
Material: Antenna wire: Hard-drawn copper strand 2.8 mm, breaking load 750 N
Box terminals and screws: Material 1.4301 (V2A)
Plastics: UV-resistant
Bandwidth SWV s ≤ 2
80 m band: 200 kHz (~ 3.5-3.7 MHz) ____200 W PEP, 50 W digital modes
40 m band: entire band ___________200 W PEP, 50 W digital modes
20 m band: antenna tuner required __400 W PEP, 100 W digital modes
17 m band: antenna tuner required __400 W PEP, 100 W digital modes
15 m band: entire band ___________400 W PEP, 100 W digital modes
12 m band: entire band ___________400 W PEP, 100 W digital modes
10 m band: 400 kHz (~ 28.3-28.7 MHz) __400 W PEP, 100 W digital modes
Specifications for freely suspended antenna at approx. 6 m height
The reason for the power limitation is heating caused by remagnetization losses in the core material.
If the specified power is exceeded, the losses in the core material increase, which in turn leads to heating of the core material.
When the Curie temperature > 130 °C is reached, the permeability of the core decreases. The SWV increases sharply and is therefore an indicator of an excessively high core temperature.
After the core material has cooled down, the core regains its specific permeability. The SWV returns to normal values.
This process is reversible.