CHA HYBRID - MINI / MICRO
Page 13
Figure 5. Inverted “V” Configuration.
Site Selection and Preparation.
1.
Select a site to deploy the CHA MPAS Inverted
“V” configuration. The site must have a support
that will position the center of the antenna at a
height of around 30 feet. If the right support is
unavailable, any convenient object, such as a
fence post or the top of a vehicle, may be used
as a field expedient support with reduced
performance.
Refer to plates (2) and (3) for steps (3) – (11).
2.
If not already attached, connect a Carabiner (d)
to the Isolation Loop (c) at the Wire Connector
(f) end of the Antenna Wire (b).
Connect the Hybrid Micro Base.
3.
Temporarily remove the Antenna Shackle (j)
from the Antenna Connection (h).
4.
Place the Wire Connector from the Antenna
Wire over the Antenna Connection and replace
the Antenna Shackle. Tighten the nut snugly.
5.
Connect the Carabiner from the Antenna Wire
to the Antenna Shackle.
6.
Using a Bowline or similar knot, tie the end of a
long length of Paracord to the Carabiner.
7.
Connect a 60 foot counterpoise wire to the
Counterpoise Connection (i). Tighten the nut
(not supplied)
snugly.
8.
Connect a CHA RFI CHOKE and coaxial cable or
the Integrated RF Choke end of the CHA Coaxial
Cable assembly to the UHF Socket (g) on the
Hybrid Micro Base.
Raise the Antenna.
9.
Using a throw weight or some other method,
loop the Paracord over the support.
10.
Raise the center of the antenna to the desired
height and secure it to the support using a
Round Turn and two Half Hitches, or similar
knot.
Extend the Antenna.
11.
Using a Bowline or similar knot, tie the end of a
short length (around 4 feet) of Paracord to the
Isolation Loop at the end of the Antenna Wire.
12.
Fully extend the Antenna Wire until it is not
quite taut.
13.
Drive a stake into the ground around two feet
from the end of the Antenna Wire and tie the
Paracord from the Antenna Wire to the stake
using two Half Hitches, or similar knot.
Extend the Counterpoise.
14.
Using a Bowline, or similar knot, tie the end of a
short length of Paracord to the free end of the
counterpoise wire.
15.
Fully extend the counterpoise wire, in an
opposite direction from the Antenna Wire, until
it is not quite taut.
16.
Drive a stake into the ground around two feet
beyond the end of the counterpoise wire and tie
the Paracord from the end of the Antenna Wire
to the stake using two Half Hitches, or similar
knot.
17.
Perform operational test.
Содержание CHA MPAS
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