MA 2-1 SC
Marine VHF Antenna with Low Weight and Wind Load for Masthead Mounting
Description
- 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.
Specification
| 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 |
| 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 |
Ordering Codes
| Model | Product No. | Additional Information |
|---|---|---|
|
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) |
Diagrams
“YA” MOUNTING BRACKET DIMENSIONS
TYPICAL GAIN AND SWR CURVE
TYPICAL RADIATION PATTERN (E-PLANE)
TYPICAL RADIATION PATTERN (H-PLANE)
PROCOM A/S reserves the right to
amend specifications without prior notice
PROCOM A/S • Smedetoften 12
DK 3600 Frederikssund • Denmark
Generated : 2026-06-26
Version 1