Diamond Antenna X500HA User manual

¥ Description
Newly developed Linear Phase Shift technology and Direct Joint
structure by three-piece FRP outershell enables antenna to
achieve the following performance:
1. 2m 5/8 wave three-element C-Load and 70cm 5/8 wave
eight-element structure.
2. High performance and high maximum power rating at 2m and
70cm bands.
3. Low VSWR and broader coverage at 2m and 70cm bands.
4. Overlapping three-piece FRP outershell structure is strong
enough to compete with one piece structure.
5. Ring gasket provides perfect waterproofing.
6. Ideally tapered FRP outershell has enough thickness to
withstand strong wind and avoid unwanted QSB.
7. Joint bracket can be fastened securely by special
wrench attached.
8. DC ground structure of the antenna protects transceiver from
high voltage caused by thunder and lightning.
9. Feedpoint connector is being exposed downward at the
bottom of support pipe to make antenna installation or
detachment easier.
10. With optional 2m/70cm duplexer, two bands can be
transmitted simultaneously, or one band can be transmitted
while simultaneously receiving the other band.
¥ Specifications
Frequency: 144–148MHz, 435–450MHz
Gain: 8.3dB (2m), 11.7dB (70cm)
Impedance: 50Ω
VSWR: Less than 1.5:1
Max Power Rating: 200W
Max Wind Resistance: 90 MPH
Mast Diameter Accept.: 1 1/5” to 2 2/5”
Length: 17.8’
Radial Length: approx. 20.5”
Weight: 5.73 lbs.
Type: 5/8λthree-element C-Load antenna (2m)
5/8λeight-element C-Load antenna (70cm)
¥ VSWR
DIAMOND ANTENNA Products are distributed by RF PARTS COMPANY
435 S. Pacific Street ¥ San Marcos, CA 92078 ¥ [phone]
www.diamondantenna.net
X500HA SO-239 (UHF)
X500HNA Type-N Female
2m/70cm Dual Band High Performance Gain Vertical Antenna
Direct Joint System ¥ FRP Outershell ¥ Linear Phase Shifter System
¥ Parts Diagram

¥ Assembly
Note: Be sure to assemble from upper element. If the antenna is
being assembled from lower element, element can not be pulled
out from outer shell and fastened properly.
1. Put special wrenches on upper and center FRP outershells as
shown in Fig. 1. Use small diameter section of the wrench.
2. Connect upper element in the upper FRP outershell and center
element in the center FRP outershell with screwdriver.
3. After connecting these two elements in the outershells,
fasten upper FRP outershell joint bracket with special
wrenches as shown in Fig. 3.
Fasten the bracket thoroughly until there is no gap between
each part of the bracket.
4. After fastening the bracket, detach the wrenches from the
outer shells as shown in Fig. 4.
5. Connect center element in the center FRP outershell and
lower element in the lower FRP outershell the same was as
sections 2 and 3, but use larger diameter section of the
wrenches as shown in Fig. 5.
6. Attach three radial elements with the wrench as shown
in Fig. 6.
7. Attach mast brackets on support pipe and fix them.
8. Attach assembled antenna on mast as shown in Fig. 8.
While installing, be sure to take the balance of the entire
antenna into account.
9. Connect coaxial cable with connector to feedpoint section at
the bottom of the antenna through waterproof sleeve as
shown in Fig. 9.
10. After connecting coaxial cable, fix waterproof sleeve to the
bottom of support pipe with a screw.
Turn connected coaxial cable once to make a loop right below
the antenna as shown in Fig. 10 to escape excess load from
the cable.
¥ Adjustment
The X500HAand X500HNAantennas are completely adjustment
free. If VSWR of the antenna is extraordinarily high, most likely
it is due to coaxial cable and connector contact, or a connector
soldering problem. Be sure to use 50Ωcoaxial cable to feed the
antenna.
¥ Note
Though the X500HA and X500HNA are DC grounded structures,
circuit across the inner conductor and outer conductor is open-
circuit when measured by a volt-ohm meter. If it is close-circuit,
confirm coaxial cable connections. Use the antenna vertically. If
the antenna is tilted, it can not perform perfectly as it is expected.
Please see next page for
installation safety and
precaution guidelines.

FOR YOUR
SAFETY
Please read the fol-
lowing safety pre-
cautions before
antenna assembly.
• Assemble the antenna on the
ground or wide and flat place
such as on balcony before
installation.
• Do not assemble or install the
antenna on a place where you
can not have enough distance
from any electric power
lines.
• Do not install the antenna on
a rainy or windy day.
• Do not attempt to install the
antenna only by yourself.
Installing the antenna alone
on the roof may lead you to a
dangerous accident. Always
ask your friends or a
professional for help
installing the antenna.
• Do not use iron or aluminum
ladder at a reachable distance
from any electric power
lines.
• Do not install the antenna on
a mast which is not grounded
properly.
• Do not have your family
members or friends touch or
come close to the antenna,
unless they have realized its
potential danger.
TOAVOID FATAL ACCIDENT
• Do not attempt to sustain the
antenna, or any part of support
structure if it begins to fall down.
Let it fall by itself.
• Do not attempt to remove or
restore the antenna or any part of
support structure if it touches an
electric power line. Let it be as it
is, do not touch it, and call your
local electric power company
immediately.
INCASE OF AN ACCIDENT
• Do not touch a person or an
animal who is or seems to be in
contact with the antenna or any
support structure which is fallen
on a live electric power line.
Touching one may lead you to be
electrocuted.
• Do not attempt to separate a
person or an animal who is or
seems to be in contact with the
antenna or any support structure
which is fallen on a live electric
power line by yourself. Call or
have someone call a police offi-
cer, ambulance, or doctor
immediately.
ANTENNA INSTALLATION
PRECAUTIONS
To determine antenna installation
location, there are several factors
to be taken into account. First
thing is antenna propagation
direction to specific target
stations. As to whether there are
any obstacles such as tall build-
ings on the line of sight. Next is
specific installation location. As to
whether specific location is
adequate in terms of antenna
support and surrounding safety.
• Do not attempt to install the
antenna by yourself if you do not
have any experience in installing
base station antenna. Ask
your experienced friends or a
professional for help.
• Do not attempt to install the
antenna at a location where it
does not have enough distance
from nearby electric power lines.
It is advised to install the antenna
at least twice of total antenna
height from nearby electric
power lines.
• Do not install the antenna on any
type of tower, pole or
telescopic mast which exceeds
30 feet high, if you do not have
enough experience in installing
the antenna on that kind of
location. Ask your experienced
friends or a professional for help.
• Do not use more than 1/10’
section if you install the antenna
on iron plumber’s pipe. Attach
guy wire if multiple pipes are
used to install the antenna.