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Ground Plane Antenna Designs
MOSLEY ELECTRONICS, INC.
 
 
 
 
 
 
 
 
 
       
 
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Mosley 'Diplomat' Ground Planes
Mosley 2 Meter Ground Plane
DI-2 Mosley Diplomat

VERTICAL GROUND PLANE ANTENNA 144 to 175 MHz

A 5/8 wave omni-directional vertically polarized 2 meter antenna with a low angle of radiation ideal for base-to-mobile operation. Features the Mosley "Induct-O-Match" system for loading and impedance matching and a female coax connector that is easily fastened to the radial support for a long lasting connection.

Business Band transmitting and receiving are possible on your own assigned frequency in this range. The Diplomat 2 is ideal for anyone having a need for 2 meter base-to-base or base-to-mobile communications. 
Mosley 'Dispatcher' Ground Planes
VERTICAL GROUND PLANE ANTENNA 27 to 50 MHz
The "DISPATCHER", DP-275 ULBB

The ULBB Uni-Linear Vertical ground plane antenna, the DP-275 Dispatcher, is a vertical ground plane antenna with an exceptionally low angle of radiation.
It incorporates a shunt match feed with 50 ohm impedance rated to 1,000 watts and a nominal 1.5 or less VSWR at the resonant frequency. 
The Mosley "DP-275" offers a 3.4 gain over a standard ground plane antenna. This antenna is grounded for lightning protection which also reduces rain and snow static.

6063-T832 aluminum alloy tubing with high tensile strength makes this antenna the durable antenna desired for commercial use.
The vertical element of this DP-275 telescopes into a wrapped phenolic base tube which has a greater strength than the aluminum element. Radials (horizontal elements) terminate into a high strength "ABS" base which has again, more strength than the aluminum element.

Antenna mounting is simplified: just mount the antenna on a mast, tighten two screws, and lock nuts. All hardware is of stainless steel or steel-plated to meet government specifications.

This vertical ground plane has swaged (tapering ends of aluminum tubing) designed to reduce wind load and any possibility of vibrations which could cause metal fatigue.
ITEM
DESCRIPTION
ANT-DI-2
ANT-DI-220
ANT-DI-430
Diplomat Series, 5/8 wave ground plane, 144 MHz
Diplomat Series,5/8 wave ground plane, 220 MHz
Diplomat Series, 5/8 wave ground plane, 430 MHz
CUSTOMIZING the DIPLOMAT 2...

Customize-It-Yourself - a feature of the antenna that permits you to monitor the action of the 21st Century. This remarkable 2 meter antenna may be easily cut to any desired frequency between 150 and 175 MHz. Simple, concise instructions are supplied with the Diplomat 2. Now you can tune into the police and the fire department, industrial, emergency net, utility, forestry, marine traffic communications, and many more interesting, useful, and informative broadcasts available on 150 through 175 MHz.
Model
Frequency, MHz
Gain, dB
Power Rating, watts
Antenna Height
Radial Element Length
Wind Load, EIA 80 MPH
Mast Size hardware equipped (OD)
Assembled weight
Warranty
DI-2
144
3.4
1000 CW / 2000 SSB
4 ft / 1.22 m
19 in / 48.26 cm
6 lbs / 2.72 kg
1.5 in 3.81 cm
2 lbs / 0.9072 kg
2 years
DIPLOMAT-2 (144 MHz) Example
ITEM
DESCRIPTION
ANT-DI-10
ANT-DI-6
ANT-DP-275-27
Dispatcher Series, 5/8 wave ground plane, 10 meter
Dispatcher Series, 5/8 wave ground plane, 6 meter
Dispatcher Series, 5/8 wave ground plane, 11 meter "Devant Special"
Model
Frequency, MHz
Gain, dB
Power Rating, watts
Antenna Height
Radial Element Length
Wind Load, EIA 80 MPH
Mast Size hardware equipped (OD)
Assembled weight
Warranty
DI-6 / DP-275-50
50
3.4
1000 CW / 2000 SSB
12 ft / 3.66 m
4.4 ft / 1.34 m
31 lbs / 14.06 kg
1.625 in / 4.13 cm
5 lbs / 2.27 kg
2 years
DI-10 /DP-275-30
30
3.4
1000 CW / 2000 SSB
19 ft / 5.79 m
8.6 ft / 2.62 m
41 lbs / 18.60 kg
1.625 in / 4.13 cm
9 lbs 4.08 kg
2 years
DP-275-27
27
6.3
2500
19.67 ft / 6.00 m
9 ft / 2.74 m
42 lbs / 19.05 kg
1.625 in / 4.13 cm
11 lbs / 4.99 kg
2 years
Mosley 5/8 Wave Ground Plane
DI-6
DI-10
Mosley reserves the right to change product and material specifications without prior notice or obligation.
Molsey 6 Meter Ground Plane
Molsey 10 Meter Ground Plane