WiMo EAntennas 2850MOX Dual Band Moxon Antenna
- June 3, 2024
- WiMo
Table of Contents
WiMo EAntennas 2850MOX Dual Band Moxon Antenna
All our products are manufactured and developed with the best materials on the
market, to offer the best qualities and guarantees to our customers.
The Yagi type MOXON antennas were developed by Leslie A. Moxon, to be used in
communications in HF during the 2nd half of the 20th century, quite
successfully. Its cost, profit and ease of construction make it an option very
convenient. As it is a specific antenna according to the bands in which we
want to operate. The address of the maximum Gain is obtained in the opposite
direction to the reflector and perpendicular to the radiating element.
According to the position with respect to ground, horizontal or vertical, will
be its polarization. It is very important that this coincides with the
polarization used in the antenna of the equipment to which you connect with
this antenna.
Like any antenna manufactured by EAntenna, we do not include a connector, to
have the minimum losses. We include terminals to solder directly, although we
offer as an option balun or ferrites EMI / RFI.
We detail the materials used, for their best use and assembly. All the
fittings are made of stainless steel and the
Aluminum is made of T6061 or T6063 alloy, known as Aeronautical Aluminium,
which offers the best conditions to withstand the most extreme climates, the
force of the wind and the best conductivity. The plastics used, is Polyamide
or Polypropylene, which offer the best hardness and durability for the passage
of time. We offer guarantee in the operation, and guarantee in the ironworks,
delivering the kit of hardware some extra pieces, for possible losses or
forced breakages.
In the following pages we detail the exploded view with its graphics.
Boom Size: 4 0 x40x2mm
Element Diameter: 10m 20×1,5mm – 16x1mm – LOOP 13x1mm 6m 13x1mm – LOOP
10x1mm
The square BOOM has 4 sides, to identify by which part of the boom we will
assemble the antenna.
Side A; On this side of the boom the screws DIN 7991 M4x40 are inserted
for fastening the elements.
Side B; the side opposite to the A is where the nut DIN 934 M4 is
installed.
Side C and D; i n these holes the elements are inserted.
The assembly of the Eantenna 2850MOX is as easy as inserting each element in
its corresponding hole in the boom (SIDE C and D), and with a screw DIN 7991
M4x40 thread on the same element (SIDE A). In addition, an M4 nut is added,
which ensures that the element does not get loose. (SIDE B)
The square BOOM has 4 sides, to identify by which part of the boom we will
assemble the antenna.
Side A; On this side of the boom the screws DIN 7991 M4x40 are inserted
for fastening the elements.
Side B; the side opposite to the A is where the nut DIN 934 M4 is
installed.
Side C and D; in these holes the elements are inserted.
The assembly of the Eantenna 2850MOX is as easy as inserting each element in
its corresponding hole in the boom (SIDE C and D), and with a screw DIN 7991
M4x40 thread on the same element (SIDE A). In addition, an M4 nut is added,
which ensures that the element does not get loose. (SIDE B)
50 MHz. 
The assembly of elements,
once selected all lengths, place in each half of Ø 13mm front, insert one by
one, the tubes of 10mm diameter x 200mm (EA0120010) in one of the 13mm tube.
Once fixed and the first part of an item, enter the next half and secure again
screws DIN 7984 M4X10 and the M4 Insert rivet which is detailed below. Note
that the screw head has to be accommodated within the bigger hole in element.
The fixing of the LOOP element, each element is using a Hose
Clamp 8-12mm (P0100022) the 13 to 10mm diameter. 
Fix the 16mm element into the 20mm tube with hose clamp 20-12mm
(P0100024) and at each corner of the 16 to 13mm diameter tubes. 8-12mm
(P0100022) hose clamps hold the loop end in place and allow for adjustment
(SWR). 
MAST TO BOOM PLATE ASSEMBLY **
**
The clamping plate BOOM / MAST (EA013016) 250X100X6mm consists of 12 holes; 4
thick for round U-bolts and 8 small holes to joint the (EA010083) securing the
BOOM.
The 4 holes are thicker function that make the greatest force on the mast by
means of M8 round U-bolts. Round U-bolts M8 (A-0163), are secured by washer
DIN 9021 M8 and nut DIN 934 M8 provided in the same U-bolt, and fixed to the
mast with clamp (23035.50).
Detailed drawings for further illustration:
Correct positions:
In this antenna, you only may connect the coax thru the balun
to the 10m band element.
The DRIVEN ELEMENT comes pre-assembled, but for its assembly into the boom,
one side has to be removed. Then, put the insulator into the large hole of the
boom, fix with screws as explained above and re-install the side tube which
was removed before. 
The first step of placing the balun is screwing the screws on the boom. Don’t
tightening until the balun not positioned correctly. When the balun is placed
in its final position, rotate the screw with your fingers until the screw
press the balun and fix it to the white plastic ring. Tighten the nut some
strength with a wrench and then, tightening nuts on boom to complete fix this
system. 
BOLSA 1 – BAG #1 
BOLSA 2 – BAG #2
BOLSA 3 – BAG #3 
PACKING LIST
