Aerialix ARLX-OM2400 Podręcznik budowy - Strona 7

Przeglądaj online lub pobierz pdf Podręcznik budowy dla Antena Aerialix ARLX-OM2400. Aerialix ARLX-OM2400 12 stron. Collinear antenna kit

802.11 2.4Ghz Low-Power 5dBi Vertical Collinear Antenna
Element assembly:
Each element is matched with a coil segment. The relationships are indicated in figure 4 above. The important relationship is
from the middle of the coil to the beginning of the brass tube element and measures 1/4 wavelength. Then from the beginning of
each tube to the start of the first turn of the next coil is a 1/2 wavelength all the way up the antenna until the final element is
placed.
You will find the template sheet with template T1, T2a, and T2b on the last page of this document. It is advisable to download
an print the standalone template jpeg or pdf file, as many web browsers shrink or expand images in order to fit to page. If you
are reading the hardcopy version of this document as provided from Aerialix, the template is to scale. Cut out the three
templates, setting T2a and T2b aside for later. We will assemble all four element sections using Template T1 as a guide. Gather
one coil and one element tube and set aside. Using needlenose pliers, bend one end of the coil slightly in two places as shown in
Figure 8. These bends will provide friction inside the tube to enable precise alignment to template T1 and to hold the two pieces
together while soldering.
Figure 8. Illustrating the friction bends in one end of the coil.
Figure 9 shows the proper alignment using template T1 as a guide. Repeat alignment for all remaining sections.
Figure 9. Aligning an element assembly using template T1 as a guide.
Once all element assemblies have been aligned, solder in place. Trim approximately 1 inch from the coil unsoldered coil lead.
(C) Aerialix 2002 (7 of 13)