WiMo 17754.04 4m Band Moxon Antenne Instructions
- June 3, 2024
- WiMo
Table of Contents
WiMo 17754.04 4m Band Moxon Antenne
Thank you for choosing EAntenna.
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 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 a guarantee
in the operation, and a guarantee in the ironworks, delivering the kit of
hardware with some extra pieces, for possible losses or forced breakages. In
the following pages, we detail the exploded view with its
graphics.
SPECIFICATIONS
The measures of the previous page are expressed in external dimensions, ie,
measuring from each end of the tube. Once the horizontal elements are
assembled correctly, proceed to form a rectangle with the measures provided
below.
Take into account the position of the ends according to page 6, to take
account of the reflector and driven not reverse.
To set the reflector to boom, position the plastic clamps of 13mm (EAHYP013)
in positions where it belongs, and fixed with screws DIN 912
M6x40.
To place the plate to the boom, use screws DIN 912 M6X20 and DIN 9021 M6 washer. This plate must be very firm for positioning the element. The next step is similar to reflector mounting, use again DIN 912 M6x40 and Din 985 M6slft locking nuts once it is all assembled antenna.
The fixing of the LOOP element, each element is using a Hose Clamp 8-12mm (P0100022) the 13 to 10mm diameter. The final length is the pre-syntonized. The lenght is from the end of the 13mm tube to the outside of the bent tube.
MAST TO BOOM PLATE ASSEMBLY
The clamping plate BOOM / MAST (EA013018) 100X100X6mm consists of 8 holes; 4
thick for round U-bolts and 4 square U-bolts for securing the BOOM.
The 4 holes are functions that makes 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 bag, and fixed to the mast with
clamp (23035.50).
Detailed drawings for further illustration:
Montaje correcto:
Coax cable feeding:
After several trials, we see that the balun aluminum makes it a worse job than
a coaxial choke. For this, we recommend 5 turns of 8 cm and thus the RF return
will be minimal or absent.
The below drawing advise you how to do the clash below the boom to avoid
interaction with the elements.
PACKING LIST
BOLSA 2 – BAG #2
