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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.

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Specifications

Frequency:

144–148MHz, 435–450MHz

Gain:

8.3dB (2m), 11.7dB (70cm)

Impedance:

50

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:

5/8

λ

three-element C-Load antenna (2m)

5/8

λ

eight-element C-Load antenna (70cm)

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VSWR

DIAMOND ANTENNA Products are distributed by RF PARTS COMPANY

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

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

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Parts Diagram

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