|
Built like our FM10 version, but priced for the Class A station, it provides
superior performance for stereo, SCA and quadrophonic operation due to it's
wide VSWR bandwidth.
FREQUENCY RANGE................88-108 MHz.
POLARIZATION......................Circular
POWER RATING.....................3 Kw per bay
INPUT...................................1-5/8 EIA
CIRCULARITY........................+/- 2 dB
VSWR...................................1.1:1 +/- 200 KHz
 Durable
corrosion resistant construction. The antenna system
is fabricated from rugged heavy wall copper and naval
brass. All joints are TIG welded.
Full power rating. Each bay is rated at 3 Kw, with a maximum of 15 Kw for five
bays or more.
Pressurized and grounded, the entire antenna system is presssurized to the
feed point of each bay and each bay is DC grounded, thus eliminating the need
to purchase a shorting stub.
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 antenna patterns. Directional patterns based on the customer's
mounting structure are available to meet FCC requirements.
Electrical deicers for heavy icing conditions are available.
A 2 year limited warranty on defects in material and workmanship to the original
purchaser.
FM3 DATA
|
Model
|
Bays
|
Full Wave Power gain
|
F/W dB gain
|
1/2-Wave Power gain
|
1/2-wave dB gain
|
Power Rating
|
Full-wave Antenna Aperture
|
|
FM3/1
|
1
|
0.48
|
-3.37
|
0.38
|
-4.2
|
3 Kw
|
2.5 Ft.
|
|
FM3/2
|
2
|
1
|
0
|
0.76
|
-1.19
|
6 Kw
|
10 Ft.
|
|
FM3/3
|
3
|
1.5
|
1.76
|
1.14
|
0.57
|
9 Kw
|
20 Ft.
|
|
FM3/4
|
4
|
2.1
|
3.22
|
1.52
|
1.82
|
12 Kw
|
30 Ft.
|
|
FM3/5
|
5
|
2.7
|
4.31
|
1.9
|
2.79
|
15 Kw
|
40 Ft.
|
|
FM3/6
|
6
|
3.2
|
5.05
|
2.28
|
3.58
|
15 Kw
|
50 Ft.
|
|
FM3/7
|
7
|
3.8
|
5.8
|
2.66
|
4.25
|
15 Kw
|
60 Ft.
|
|
FM3/8
|
8
|
4.3
|
6.33
|
3.04
|
4.83
|
15 Kw
|
70 Ft.
|
|
FM3/10
|
10
|
5.6
|
7.48
|
3.8
|
5.8
|
15 Kw
|
90 Ft.
|
|
FM3/12
|
12
|
6.7
|
8.26
|
4.56
|
6.59
|
15 Kw
|
110 Ft.
|
|
Model
|
1/2-wave Antenna Aperture
|
Full-Wave weight (Lbs)
|
F/W Weight w/deicers (Lbs)
|
F/W weight w/radomes (Lbs)
|
1/2- Wave Weight (Lbs)
|
1/2- Wave Weight w/deicers (Lbs)
|
1/2- Wave Weight w/radomes (Lbs)
|
|
FM3/1
|
2.5 Ft.
|
21
|
30
|
52
|
21
|
30
|
52
|
|
FM3/2
|
5 Ft.
|
100
|
118
|
162
|
94
|
112
|
156
|
|
FM3/3
|
10 Ft.
|
155
|
182
|
248
|
143
|
170
|
236
|
|
FM3/4
|
15 Ft.
|
210
|
246
|
334
|
192
|
228
|
316
|
|
FM3/5
|
20 Ft.
|
265
|
310
|
420
|
241
|
286
|
396
|
|
FM3/6
|
25 Ft.
|
320
|
374
|
506
|
290
|
344
|
476
|
|
FM3/7
|
30 Ft.
|
410
|
473
|
627
|
374
|
437
|
591
|
|
FM3/8
|
35 Ft.
|
475
|
547
|
723
|
433
|
506
|
681
|
|
FM3/10
|
45 Ft.
|
600
|
690
|
910
|
546
|
636
|
856
|
|
FM3/12
|
55 Ft.
|
710
|
818
|
1082
|
644
|
752
|
1016
|
|
Model
|
F/W windload 50/33 psf
|
F/W windload w/deicers (Lbs)
|
F/W windload w/radomes (Lbs)
|
1/2- wave windload 50/33 psf
|
1/2- wave windload w/deicers (Lbs)
|
1/2- wave windload w/radomes (Lbs)
|
|
|
FM3/1
|
45
|
48
|
268
|
45
|
48
|
268
|
|
|
FM3/2
|
165
|
168
|
583
|
157
|
158
|
559
|
|
|
FM3/3
|
260
|
266
|
877
|
225
|
231
|
830
|
|
|
FM3/4
|
350
|
360
|
1171
|
294
|
303
|
1101
|
|
|
FM3/5
|
440
|
453
|
1465
|
363
|
375
|
1371
|
|
|
FM3/6
|
570
|
586
|
1759
|
432
|
447
|
1642
|
|
|
FM3/7
|
665
|
684
|
2053
|
500
|
519
|
1912
|
|
|
FM3/8
|
760
|
782
|
2347
|
569
|
591
|
2183
|
|
|
FM3/10
|
980
|
1009
|
2935
|
707
|
735
|
2724
|
|
|
FM3/12
|
1165
|
1200
|
3623
|
844
|
879
|
3265
|
|
|
All educational series antennas come with a limited 2 year warranty on defects in material and workmanship to the original purchaser.
Antennas with 3 bays or more require a power divider with 7/8" EIA input.
All FME series antennas are designed for mounting on a pipe or pole with a diameter of up to 4.0 inches.
For areas where there is heavy icing, electrical deicers are available.
SWR Inc. maintains a continuous program of product improvement, and therefore reserves the right to change specifications without notice.
Back to FM Antennas
|
