MODEL PRO-57-B - PRO-57-B-3 (3" OD BOOM)
  • 10, 12, 15, 17, 20, Meter
  • 7 Element
  • 3 Elements on 12, 15, 17, 20
  • 4 Elements on 10
  • No measuring
  • Pre-drilled
  • Color coded
  • 18-8 & 300 series Stainless Steel

  • Frequency, MHz
     28, 24, 21, 18, 14
    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
    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
    Boom Length
    24 ft 7.32 m
    Maximum Element Length
     27.5 ft 8.38 m
    Turning Radius
     18.33 ft 5.59 m
    Mast Size hardware (equipped)
     2 in 5.08 cm
    Assembled weight
     92 lbs 41.73 kg
    Assembled weight (3" OD Boom)
     106 lbs 48.08 kg
    Wind Surface Area
     11 sq ft 1.02 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.)
    30, 40 Meters, 3" boom

    KS1S's Mosley PRO-57-B

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

    "Such a compact little monster!..."  WX3K
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    "Great job to everyone at Mosley!  Thank you for my PRO-57-B."  KB6JOX
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    "This antenna is as good today as it was the first day I mounted it on my tower back in the summer of 1991..." KS1S
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    UPGRADE  YOUR PRO-57-B!

    Conversion to 40 or 30 meters is possible. Add a rotatable dipole or two active elements.  See Conversion Kits for more details. 

     

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