Mosley "Power-Master" VHF antennas combine superlative performance with the most rugged construction to be found in any vhf antenna for amateur use. Element sections are 5/8" OD and 1/2" OD establishing an extremely low ratio of length-to-diameter.
All metal hardware is stainless steel or other rustproof material. The element-to-boom clamping blocks are of cast aluminum and are self-aligning.
A unique matching stub permits antenna to be fed direct. Low VSWR over broad bandwidth is maintained. Pre-drilled and color-coded for ease of assembly. Stacking and phasing kits available on request.
UHF / VHF Antenna Designs
HEAVY DUTY BEAMS
Model
Frequency, MHz (adjustable)
Power Rating, watts AM/CW/FM
Power Rating, watts SSB
VSWR at frequency
Forward Gain, dBd
Front-to-Back Ratio, dB
Matching System
Number of Elements
Maximum Element Length
Mast Size hardware equipped
Boom Length.
Assembled weight
Wind Surface Area
Wind Load, EIA 80 MPH
Turning Radius
Warranty
AM-56
50
1000
2000
1.0/1 or better
10.8
20
Direct 'Y'-Ty
5
9.75 ft / 2.97 m
1.5 in / 3.81 cm
12 ft / 3.66 m
14.5 lbs / 6.58 kg
2.1 sq ft / 0.20 sq m
32 lbs / 14.52 kg
6.42 ft / 1.96 m
2 years
AM-2N6
144, 50
1500, 3000
2000
1.0/1 or better
10.1, 9.1
20
Direct 'Y'-Ty
9
9.67 ft / 2.95 m
1.5 in / 3.81 cm
14 ft / 4.27 m
21 lbs / 9.53 kg
2.5 sq ft / 0.232 sq m
50 lbs / 22.68 kg
8.75 ft / 2.67 m
2 years
AM-14-2
144
1000
2000
1.0/1 or better
13.9
25
Direct 'Y'-Ty
14
3.42 ft / 1.04 m
1.5 in / 3.81 cm
12 ft / 3.66 m
11.5 lbs / 5.22 kg
1.6 sq ft / 0.149 sq m
37 lbs / 16.78 kg
6.42 ft / 1.96 m
2 years
LIGHT WEIGHT BEAMS
Mosley "MY" VHF antennas are Eye Pleasing, Low Priced, Top-Performance, Light-Weight Yagis.
High standards of engineering, design and quality construction established by Mosley over decades of manufacturing antennas. Rugged, lightweight and easy to assemble. Elements are of 1/8" OD solid 6061-T6 aluminum rod, polystyrene insulators, boom of 1" OD 6063-T832 drawn aluminum tubing, cast aluminum mast mount for 1" - 1-1/4" OD masts.
1. INSULATORS
These unique, innovated element-to-boom insulator arrangement allows for ease of tuning with the turn of a screwdriver; a simple adjustment in element length.
2. WEATHER PROTECTION
Mosley beams are constructed to provide the best weather protection from rigors of climate.
3. BOOM CASTING
The boom-to-mast casting is designed as one piece to eliminate clamping blocks and other exterior hardware.
4. MATCHING SYSTEM
Incorporated in the radiator element is a 200 Ohm folded dipole with a 4:1 coaxial balun for maximum efficient transfer of RF energy from cable to beam.
Model
Frequency, MHz (adjustable)
Power Rating, watts AM/CW/FM
Power Rating, watts SSB
VSWR at frequency
Forward Gain, dBd
Front-to-Back Ratio, dB
Matching System
Number of Elements
Maximum Element Length
Mast Size hardware equipped
Boom Length.
Assembled weight
Wind Surface Area
Wind Load, EIA 80 MPH
Turning Radius
Warranty
MY-144-5
144 to 148
1000
2000
1.5/1 or better
10
20
Folded Dipole
5
3.42 ft / 1.04 m
1.25 in / 3.18 cm
4.5 ft / 1.37 m
2 lbs / 0.91 kg
0.4 sq ft / 0.04 sq m
8 lbs / 3.63 kg
2.83 ft / 0.86 m
2 years
MY-144-9
144 to 148
1000
2000
1.5/1 or better
14
20
Folded Dipole
9
3.42 ft / 1.04 m
1.25 in / 3.18 cm
9 ft / 2.74 m
3.5 lbs / 1.59 kg
0.8 sq ft / 0.074 sq m
10.5 lbs / 4.76 kg
4.83 ft / 1.47 m
2 years
MY-220-9
220 to 225
1000
2000
1.5/1 or better
14
20
Folded Dipole
9
2.25 ft / 0.686 m
1.25 in / 3.18 cm
8.17 ft / 2,49 m
3.5 lbs 1.59 kg
0.7 sq ft / 0.065 sq m
14 lbs / 6.35 kg
4.17 ft / 1.27 m
2 years
MY-430-14
430 to 450
1000
2000
1.5/1 or better
15
20
Folded Dipole
14
1.25 ft / 0.381 m
1.25 in / 3.18 cm
6.83 ft / 2.08 m
3.5 lbs / 1.59 kg
0.66 sq ft / 0.061 sq m
12 lbs / 5.44 kg
3.83 ft / 1.17 m
2 years
* Broad Frequency Response * Rugged, yet Light Weight * Stainless Steel Hardware * Two Year Warranty
SCOTCH MASTER 'A' SERIES 6 METER BEAMS
These 'A' series 6 meter beams are light weight yet durable providing excellent gain with a sharp pattern. The 'A' series uses the Mosley Scotch Master "gamma feed" which gives you an effiecient transfer of power and signals! Built like the Power Master series, these beams use drawn aircraft grade aluminum tubing, swaged elements for reduced wind load, and stainless steel hardware. As with all Mosley antennas, backed by a 2 year warranty free of defects in workmanship and materials.
Model
Frequency, MHz (adjustable)
Power Rating, watts AM/CW/FM
Power Rating, watts SSB
VSWR at frequency
Forward Gain, dBd
Front-to-Back Ratio, dB
Matching System
Number of Elements
Maximum Element Length
Mast Size hardware equipped
Boom Length.
Assembled weight
Wind Surface Area
Wind Load, EIA 80 MPH
Turning Radius
Warranty
A-503-S
50
1000
2000
1.0/1 or better
6.8
25
Mosley Gamma
3
9.75 ft / 2.97 m
1.5 in / 3.81 cm
6 ft / 1.83 m
7.5 lbs / 3.40 kg
1.3 sq ft / 0.121 sq m
22 lbs / 9.98 kg
5.72 ft / 1.74 m
2 years
A-504-S
50
1000
2000
1.0/1 or better
7.5
25
Mosley Gamma
4
9.75 ft / 2.97 m
1.5 in / 3.81 cm
9 ft / 2.74 m
10.5 lbs / 4.76 kg
1.45 sq ft / 0.135 sq m
28 lbs / 12.70 kg
6.63 ft / 2.02 m
2 years
A-505-S
50
1000
2000
1.0/1 or better
9
25
Mosley Gamma
5
9.75 ft / 2.97 m
1.5 in / 3.81 cm
12 ft / 3.66 m
14.5 lbs / 6.58 kg
1.65 sq ft / 0.153 sq m
35 lbs / 15.88 kg
7.73 ft / 2.36 m
2 years
Mosley reserves the right to change product and material specifications without prior notice or obligation.
*Special Order
