MODEL PRO-57-B40 - PRO-57-B40-3 (3" OD BOOM)

(Or PRO-57-B30, e-mail for details)

  • 10, 12, 15, 17, 20, 40 Meter
  • Rotatable Dipole on 40
  • No measuring, Pre-drilled, Color coded

  • Frequency, MHz
     28, 24, 21, 18, 14, 7
    Power Rating, watts CW
     2500
    Power Rating, watts SSB
     5000
    Power Rating, AM/FM
     600
    Power Rating, RTTY/AMTOR
     600
    VSWR at frequency
     1.0/1 to 1.6/1
    Forward Gain, dBd 10 meters
    9.4
    Forward Gain, dBd 12 meters
    8.3
    Forward Gain, dBd 15 meters
    8.5
    Forward Gain, dBd 17 meters
    8.5
    Forward Gain, dBd 20 meters
    8.5
    Forward Gain, dBd 40 meters
    0.0
    Front-to-Back Ratio, dB 10 meters
    20
    Front-to-Back Ratio, dB 12 meters
    15
    Front-to-Back Ratio, dB 15 meters
    20
    Front-to-Back Ratio, dB 17 meters
    23
    Front-to-Back Ratio, dB 20 meters
    20
    Front-to-Back Ratio, dB 40 meters
    0
    Boom Length
    24 ft  7.32 m
    Maximum Element Length
    44 ft 13.41 m
    Turning Radius
    22 ft  6.71 m
    Mast Size hardware (equipped)
    2 in 5.08 cm
    Assembled weight
    98 lbs 44.45 kg
    Assembled weight (3" OD Boom)
    110 lbs 49.90 kg
    Wind Surface Area
    11.3 sq ft 1.05 sq m
    Wind Load, EIA Standard 80 MPH
    280 lbs 127.01 kg
    Warranty
    2
    Recommended Coax
    Belden RG-8 / RG-213
    Options (E-mail for details.)
    3" OD boom available.

    Mosley PRO-57-B-40

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    MOSLEY ELECTRONICS 

    Sales: 800-325-4016     Technical: 636-583-8595

    Same as the PRO-57-B plus a Rotatble Dipole on 40 Meters.  The 40 Meter element will out perform a fixed dipole, vertical or loop antenna.

     

    "Have to thank you and take my hat off to you for making this great antenna..."  WA4AV
    READ MORE

     

    "It is better than anything I have used so far on 30M and has literally opened up the 30M world for me..."  K0AZ
    READ MORE

     

    UPGRADE  TO THE PRO-67-B

    Add a second element for 40 meters down the road. See Conversion Kits for more details. 

     

     
     

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