Diamond Antenna X300NA Manual

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2m/70cm Dual Band High Performance Gain Base Station Antenna

Description

1. High performance C-Load struc-

ture.

Liner

Phase

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

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.

X300A/X300NA

FREQUENCY: 144-148 MHz

Shifter

GAIN:

POWER:

IMPEDANCE: 50 Ohms

VSWR:

MAX WIND

RESISTANCE: 50m/sec (112 MPH)

MAST DIAMETER

ACCEPTED:

LENGTH:

WEIGHT:

CONNECTOR: UHF Female (X300A)

WARRANTY: 1 Year against defects

unstable

DIAMOND ANTENNA Products are distributed by RF PARTS COMPANY

435 S. Pacific Street • San Marcos, CA 92078 • (760) 744-0900

www.diamondantenna.net

Specifications

435-450 MHz

6.5 dB

9.0 dB

200 Watts

less than 1.5:1

30-62mm

(1-1/5" to 2-2/5")

2.9m (114.2")

1.9 kg (3.3 lbs.)

N Female (X300NA)

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.

Upper Outershell

Joint Bracket

Gasket Holder

10cm

Upper Element

Element Joint Bracket

Lower Element

Lower Outershell

Joint Bracket

Lower Outershell

Radial Element

Lock Nut

Radial Element

Assembly