Diamond Antenna X300NA User Manual

Description
1. High performance C-Load struc-
ture. Liner Phase Shifter
technology permits the antenna to
achieve high performance, high
power rating low vswr, and broader
band coverage on both 2m and
70cm bands.
2. Direct element joint structure with
two interconnected FRP outer-
shells. Enables the antenna to
maintain the same strength as one
with one piece structure. The ring
gasket makes the antenna water-
proof, and therefore maintains
performance even in rainy weather.
When required, the antenna can be
easily assembled or disassembled
by adjusting the joint bracket
accordingly.
3. Professional quality maximum
wind resistance is achieved by the
rugged structure. Superior water-
proofing eliminates unstable
VSWR that might otherwise
happen in climatic weather. This
antenna may also be used in seaside
or contaminated air environments
as it is rust and corrosion free.
4. Both of the bands, 2m and 70cm,
can be operated simultaneously by
using optional antenna duplexer.
5. DC ground structure, which
escapes high voltage caused by
lightning, protects your radio and
equipment.
Specifications
FREQUENCY: 144-148 MHz
435-450 MHz
GAIN: 6.5 dB
9.0 dB
POWER: 200 Watts
IMPEDANCE: 50 Ohms
VSWR: less than 1.5:1
MAX WIND
RESISTANCE: 50m/sec (112 MPH)
MAST DIAMETER
ACCEPTED: 30-62mm
(1-1/5” to 2-2/5”)
LENGTH: 2.9m (114.2”)
WEIGHT: 1.9 kg (3.3 lbs.)
CONNECTOR: UHF Female (X300A)
N Female (X300NA)
WARRANTY: 1 Year against defects
in material
or workmanship.
VSWR Charts
Adjustment
All X-Series antennas are completely
adjustment free. If VSWR of an anten-
na is extraordinarily high, see if each
connecting part is well contacted. It is
most likely due to bad contact in the
coaxial cable and/or connector connec-
tion, or soldering problem. Be sure to
use 50ohm coaxial cable to feed the
antenna.
Assembly
X300A/X300NA
2m/70cm Dual Band High Performance Gain Base Station Antenna
DIAMOND ANTENNA Products are distributed by RF PARTS COMPANY
435 S. Pacific Street • San Marcos, CA 92078 • (760) 744-0900
www.diamondantenna.net
Upper Outershell
Upper Outershell
Joint Bracket
Gasket Holder
Element Joint Bracket
Upper Element
Lower Element
Lower Outershell
Joint Bracket
Lower Outershell
Radial Element
Lock Nut
Radial Element
10cm

Diamond Antenna X300NA Specifications

General

Radiation Pattern	Omni-directional
VSWR	1.5:1 or less
Polarization	Vertical
Impedance	50 Ohms
Max Power	200 W
Connector	N-Type
Weight	2.6 lbs
Operating Temperature	-40°C to +65°C

Summary

Antenna Description

High Performance C-Load Structure

Liner Phase Shifter technology for high performance, low VSWR, and broad band coverage on 2m and 70cm bands.

Direct Element Joint Structure

Two interconnected FRP shells for strength, with a waterproof ring gasket for performance in rainy weather.

Maximum Wind Resistance and Waterproofing

Rugged structure for maximum wind resistance and superior waterproofing, suitable for harsh environments.

Simultaneous Band Operation

Both 2m and 70cm bands can be operated simultaneously by using an optional antenna duplexer.

DC Ground Structure

Protects radio and equipment from high voltage caused by lightning.

Antenna Specifications

Frequency Range

Specifies operating frequencies for the 2m and 70cm bands.

Gain

Details the antenna's gain in dB for each band.

Power Rating

Maximum power handling capacity of the antenna.

VSWR

Indicates the Voltage Standing Wave Ratio, a measure of impedance matching.

Mast Diameter Accepted

Specifies the range of mast diameters the antenna can be mounted on.

Connector Type

Identifies the type of connector on the antenna.

VSWR Charts and Adjustment

Adjustment Free Design

Antennas are completely adjustment free; check connections for high VSWR issues.

VSWR Charts

Graphs showing VSWR performance across frequency bands.

Antenna Assembly Instructions

Element Connection

Step-by-step guide for connecting upper and lower antenna elements.

Outer Shell Assembly

Instructions for attaching outer shells using joint brackets for waterproofing.

Radial Element Attachment

Procedure for attaching the three radial elements to the antenna base.

Mast Bracket Installation

Steps for mounting the antenna onto a support pipe using mast brackets.

Safety Precautions

General Safety Warnings

Includes DANGER warnings for electric power lines and general safety advice.

Avoiding Fatal Accidents

Guidance on what to do if the antenna touches electric power lines or falls.

Antenna Installation Precautions

Advice on safe installation locations, avoiding power lines, and professional help.