FM3 Series
Medium Power Antenna
FM3 Series
Frequency Range: 88 – 108 MHz
Polarization :Circular (Vertical of Horizontal also Available)
Power Rating: 3 kW per bay
System Input: 1 5/8” or 3 1/8” EIA / Center Feed Only
Circularity: ± 2 dB Free Space
VSWR: 1.1:1 ± 200 kHz
Features:
•FULL POWER RATING
Rated at 3kW per bay with a maximum of 15 kW for five bays or more.
•EXCELLENT CHOICE FOR MOST CLASS “A” STATIONS
Provides superior performance for stereo and SCA operations due to its high VSWR rating.
•RUGGED CONSTRUCTION
The antenna system is fabricated from rugged, heavy wall copper, silicon bronze cast fittings, and naval brass. All joints are tig-welded.
•PRESSURIZED AND GROUNDED
The antenna system is pressurized to the feed point of each bay and each bay is DC grounded.
•BEAM TILT AND/OR NULL FILL OPTIONAL
Custom vertical patterns are available with center-fed arrays that have an even number of bays.
•CUSTOM DIRECTIONAL PATTERNS
FM directional antennas based on the customer’s mounting structure, with FCC filing documentation, are available.
•WEATHERIZATION (OPTIONAL)
Radomes or electrical deicers available for areas that experience periods of heavy icing and/or snow conditions.
•STANDARD MOUNTING BRACKETS
Fits up to 4” tower leg or pipe. Supplied with antenna.
•WARRANTY
2-year limited warranty on defects and workmanship to the original purchaser.
Notes:
1. Power rating is based on 40 degrees C ambient. Degeneration occurs above 2000 ft.
2. Antenna weight, windload, aperture, and dimensions are based on mid-band operation (98.1 MHz).
3. Antennas with 2 or more bays come with input fine-matcher.
4. Windload based on 50/33 psf.
5. SWR, Inc. maintains a continuous program of product improvement and therefore reserves the right to change specifications without notice.