SE-EF4010:  40 Meters to 10 Meters, 45 ft Low Power End Fed Antenna
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Compact 45 ft multiband End Fed antenna usable from 40 Meters to 10 Meters with the use of a wideband antenna tuner.  May be used on 40 and 20 Meters without the aid of an antenna tuner in some situations (see VSWR plot below).  The transformer is designed with a low power single core 4:1 voltage Unun.  This design provides a direct DC ground for effective static dissipation.  The transformer housing is made with American products (except for the UHF connector), consisting of a ABS plastic housing, plus all stainless steel mounting hardware for years of trouble free service.  Ideal for portable or attic installations where space limitations are a concern.  Makes a good companion to stations like the Elecraft K/KX series, FT-817, IC703, and other QRP radios.  Also is a great shortwave receive antenna that can be used from 400 KHz to 108 MHz. 
Complete SE-EF4010 assembly.  ABS plastic housing and all stainless steel hardware. 
Hand Wound low power 4:1 Voltage Unun.
Silver/Teflon
SO-239 Connector
Specifications:
Frequency:
Power Limit:
Grounding:
Antenna Length:
Matching:
Weight:
Connector:
Housing:
Configurations:
 
40 Meters to 10 Meters with wideband tuner
100 Watts PEP, 25 Watts continuous (AM, FM, CW, RTTY)
Direct DC Ground
45 feet (14 Meters)
4:1 Voltage Unun
1.0 lbs.
SO-239, Silver with Teflon Insulation
4" x 2" x 1" ABS Housing with stainless steel hardware
Flat-Top, Sloper, Inverted-V, Quasi-Loop, Horizontal-V, Horizontal-U
$70.00      SE-EF4010, 100 Watts, 40 Meters to 10 Meters, 45 ft End Fed antenna
(Includes shipping to CONUS)

2010 - 2018 - SAL Electronics, LLC, Algonquin, IL 60102

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Hi, Michael,
 
It was a pleasure running into your booth at the Peoria (IL) this past weekend.  I purchased one of your SE-EF4010 antennas, as did my buddy, and with the beautiful day today I thought I'd try it out.  I purchased the antenna with portable operation in mind, so I set up my IC-7000 on a table in the back yard and hoisted the antenna in a tree.  Within minutes I was on the air and made the following contacts, all sideband, with 75 Watts:
 
DL5ANT in Germany on 15 meters
CE4CT in Chile on 10 meters
KD8DZ in Ohio on 40 meters
 
I'm thrilled!  The antenna works as well or better than I
hoped.
 
73,
Bill, KA9WKA
Complete SE-EF4010 end fed antenna complete with the ABS plastic housing and all stainless steel hardware.
Opened SE-EF4010 transformer box showing the 4:1 voltage Unun, stainless steel hardware, and SO-239 connector.
SE-EF4010 housing showing the antenna mounting post, and UHF Female connector.
SE-EF4010 VSWR sweep from 3.4 MHz to 33.4 MHz.
SE-EF4010 shown installed as Flat-Top configuration.
Email: sales@sal-electronics.com
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Illustration showing the SE-EF4010 used in a Flat-Top installation.
se-ef-4010.jpg se-ef4010_balun.jpg se-ef-4010_box.jpg
Antenna terminal wing nut attachment.
aim_se-ef4010_vswr_curve.jpg
VSWR sweep of the SE-EF4010 from 3.4 Mc. to 33.4 Mc. at 10 ft AGL in portable operation test.

SAL Electronics, LLC 

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1-815-669-6567