MA 2-1 SC

Marine VHF Antenna with Low Weight and Wind Load for Masthead Mounting

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MA 2-1 SC

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MA 2-1 SC
Electrical
Model MA 2-1 SC
Frequency Models within 156 – 175 MHz
Antenna Type Dipole, end-fed
Max. Input Power 50 W
3 dB Beamwidth, H-Plane Omnidirectional
Polarisation Vertical
Impedance 50 Ω
Gain 0 dBd (2.2 dBi)
VSWR < 2.0:1
Bandwidth 6 MHz
Environmental
Operating temperature range -30 °C to +70 °C
Mechanical
Wind Area 0.0076 sq. m / 0.08 sq. ft.
Connection(s) UHF(f)
Materials

Whip : Stainless steel
Housing : Chromed brass
Colour White / Metallic Silver
Historic Brand Amphenol Procom
Height Approx. 1100 mm / 43.31 in.
Wind Load 8.9 N (160 km/h)
Weight Approx. 0.26 kg / 0.57 lb.
Mounting With screws, rivets or binder
  • This marine VHF antenna is designed especially for mounting at the masthead of sailboats. The dimensions have been kept as small as possible to reduce weight, wind load and cost.
  • Despite the small dimensions the efficiency is very high, and the antenna is fully capable of handling the full 50 W of output power from typical marine VHF transmitters.
  • The tapered ½ λ stainless steel radiator together with the chromed brass housing and stainless steel corner bracket constitute an antenna tough and ready to cope with the corrosive environment at the masthead.
  • The end-fed dipole principle makes the antenna independent of ground-plane, radials or other auxiliary arrangements.
  • The antenna whip should not be mounted parallel or near to other metal parts, such as windex, supporting wires etc. Free mounting and as high as possible is preferable, otherwise the VSWR and the radiation diagram will be influenced.

“YA” MOUNTING BRACKET DIMENSIONS

TYPICAL GAIN AND SWR CURVE

TYPICAL RADIATION PATTERN (E-PLANE)

TYPICAL RADIATION PATTERN (H-PLANE)

Model Product No. Additional Information Add To Quote

MA 2-1 SC

 110000133 Covers 156 – 162 MHz

MA 2-1 SC/160..175 MHz

 110000396 To be tuned by cutting within 156 – 175 MHz (using e.g. a VSWR 4000 instrument)

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