Specifications

80
Antennas: Stealth & Loop
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MFJ-1786
Auto Tuned
Stealth Antenna (ATSA)
Great for EMCOMM—Assemble
and Deploy in Minutes!
Do you live in an area where
antennas are not allowed?
DX Engineering has designed a
complete antenna system that
allows Amateur Radio operators
living under the shadow of
HOA-controlled areas to get on the
air easily. Even with a short 26 foot
wire antenna, you can typically be
on the air on all bands 40 meters
and up. With only 45 feet of wire
you can be on all bands from 80
through 10 meters! That’s because
the unique ATSA MatchBoxx™
module lets you use almost
any length wire—no more
“forbidden” lengths as with
other end-fed systems.
Most small, physically short
antennas exhibit narrow
bandwidth, limiting your operating
frequency range on the lower bands
to 50 to 100 kHz with acceptable
SWR. The ATSA’s integral auto tuner
always delivers the lowest possible
SWR at any operating frequency with no operator adjustments necessary. Just change
bands and the ATSA antenna will follow you!
The very low profile Remote Tuning Unit [RTU] is easily hidden, even in small bushes
or shrubs. Just “plant” the RTU with supplied spikes and lay out the minimum length
radials. The only thing visible is the wire antenna element, which can be made from
small diameter wire for a near-zero visual impact. You can further camouflage the RTU
with a plastic boulder or other items available at most landscaping stores.
The DX Engineering ATSA system is completely self-contained; even the required
12 Vdc power is carried by the coax. The ATSA will automatically match your coax to the
antenna at any HF frequency within seconds. The complete system includes the RTU,
stainless steel radial plate and hardware, radial wire, antennas wire, and two insulators.
It’s everything you will need to get on the air and operating right under their noses.
• Automatic bandswitching—tunes for lowest SWR
• Handles 200 watts SSB/CW
• Connect 12 Vdc power and RF through single coax feedline
DXE-ATSA-1 ATSA Multi-Band HF Antenna System ................................ $489.00
DXE-SA80-AOK Stealth Antenna 80M Tuning Coil Add-On Kit .................... $49.95
Super Hi-Q
Loop Antennas
If you’re short on
space, but don’t
want to compromise on performance,
look to MFJ’s line of Super Hi-Q Loop
Antennas. These compact loops have a 36
inch diameter, which means they’ll fit in
apartments, attics, small lots and RVs. The
Hi-Q Loop Antennas include a controller with
auto band selection, and no control cables
are necessary.
Included with each antenna is MFJ’s “Super
Remote,” which gives you a built-in cross-
needle SWR/wattmeter that lets you quickly
tune to your exact frequency. The antennas
handle 150 watts and, depending on the
model, they cover the WARC bands.
MFJ-1786 Super Hi-Q Loop Antenna with Remote, 30-10M, 120 Vac .... $419.95
MFJ-1786X Super Hi-Q Loop Antenna with Remote, 30-10M, 220 Vac ....$419.95
MFJ-1788 Super Hi-Q Loop Antenna with Remote, 40-15M, 120 Vac .... $469.95
MFJ-1788X Super Hi-Q Loop Antenna with Remote, 40-15M, 220 Vac ....$469.95
MFJ-57B
Mini-Loop
Antenna Kits
and Tuners
These PVC Cross Loop Antenna kits are the perfect compliment to MFJ’s 933/935C/936B
loop tuners. The 4.5 x 4.5 foot PVC cross mounts break down to fit in a suitcase or du le
bag—making them perfect for portable multi-band operation.
MFJ-57B Loop Antenna Kit, 20-15 Meters ................................................ $29.95
MFJ-58B Loop Antenna Kit, 60-10 Meters ................................................ $49.95
MFJ-933 Loop Tuner, 150 Watts, 5.3-30 MHz ......................................... $179.95
MFJ-935B Loop Tuner, 150 Watts, Current Meter, 5.3-30 MHz ............... $199.95
MFJ-936B Loop Tuner, 150 Watts,
Current/SWR/Wattmeter, 5.3-30 MHz ..................................... $249.95
The DXE-BAL050-H05-A 1:1 balun is shown installed with the optional DXE-UWA-KIT
Universal Wire Antenna Center-T (U.S. Patent No. 7,764,244) insulator
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