FM1

Frequency Range: 88 – 108 MHz
Polarization: Circular
Power Rating: 500 Watts per bay
System Input:Type N Connector for 1 Kw, 7-16 DIN for 1Kw and above
Circularity: ± 2 dB Free Space
VSWR: 1.3:1 ± 150 kHz

Features

Features:

•BUILT WITH LOW POWER BROADCASTERS IN MIND
Stations or translators that require circular polarization.

•POWER RATING
Each bay is rated at 500 watts with a maximum power of 3 kW for 6 bays.

•RUGGED CONSTRUCTION
The antenna system is fabricated from rugged stainless steel.

•PRESSURIZATION NOT REQUIRED

•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 3 or more bays come with input power divider.
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.

Elevation Patterns

FM Elevation Full Wave Spaced

FM Elevation Half-Wave Spaced

FM Elevation 3/4-Wave Spaced

Download File

Please contact factory for custom elevation patterns.

Electrical and Mechanical Specifications

Full Wave Spaced

Bays	Power Rating (watts)	Power Gain	dB Gain	Net. Weight (lbs)	Windload (lbs)
1	500	0.441	-3.556	9	25
2	1000	0.959	-0.182	18	50
3	1500	1.495	1.746	27	75
4	2000	2.044	3.105	36	100
5	2000	2.59	4.133	45	125
6	2000	3.16	4.997	54	150
8	2000	4.311	6.346	63	175
10	2000	5.456	7.369	72	200

Half- Wave Spaced

Bays	Power Rating (watts)	Power Gain	dB Gain	Net. Weight (lbs)	Windload (lbs)
1	500	0.441	-3.556	9	25
2	1000	0.695	-1.58	18	50
3	1500	1.012	0.052	27	75
4	2000	1.313	1.183	36	100
5	2000	1.623	2.103	45	125
6	2000	1.924	2.842	54	150
8	2000	2.528	4.028	63	175
10	2000	3.129	4.954	72	200

3/4- Wave Spaced

Bays	Power Rating Watts	Power Gain	dB Gain	Net. Weight (lbs.)	Windload (lbs.)
1	500	0.441	-3.556	9	25
2	1000	0.935	-0.292	18	50
3	1500	1.396	1.449	27	75
4	2000	1.845	2.66	36	100
5	2000	2.301	3.619	45	125
6	2000	2.756	4.403	54	150
8	2000	3.664	5.64	63	175
10	2000	4.59	6.618	72	200

Cut Sheet

Download File

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Customer Information

Name *

First

Last

Company *

Phone *

Email *

Antenna Information

City/State of License *

Call Letters *

FCC File Number

ERP (effective radiated power)

TPO (transmitter power output) *

CR AGL (center of radiation above ground level)

Distance from Tower to XMTR (horizontal distance from tower to transmitter) *

Antenna Model

Number of Bays

Frequency

Azimuth

Wavelength

Feed Line Type *

Feed Line Size *

Total Feedline Length from Transmitter to Antenna

Weatherization Options

Other Antenna Considerations

Tower Information

(if mounting to a pipe or other surface, please continue to next section)

Tower Brand / Manufacturer

Tower Model

Tower Support *

Tower Geometry *

Mounting Position *

Leg Diameter (for leg or face mount) *

Cell Spacing

Other Tower Considerations

Mounting Structure Information

(for antennas NOT being mounted to a tower)

Mounting Structure

Mounting Structure Diameter (if tapered, provide diameter at the top, center, and bottom of pole)

Mounting Structure Length (top to bottom)

Comments

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FM1

FM1

Frequency Range: 88 – 108 MHz Polarization: Circular Power Rating: 500 Watts per bay System Input:Type N Connector for 1 Kw, 7-16 DIN for 1Kw and above Circularity: ± 2 dB Free Space VSWR: 1.3:1 ± 150 kHz