Full-Wave Spacing
Half-Wave Spacing
 
Full-Wave
Half-Wave
Full-Wave
Half-Wave
Full-Wave
Half-Wave
Model
Bays
Power Gain
dB Gain
Power Gain
dB Gain
Power Rating (Kw)
Antenna Aperture (Ft.)
Antenna Aperture (Ft.)
Weight in Lbs.
Weight in Lbs.
Windload 50/33 PSF
Windload 50/33 PSF
FM3/1
1
0.46
-3.37
0.38
-4.20
3
2.5
2.5
21
21
45
45
De-icers
30
30
48
48
Radomes
52
52
268
268
FM3/2
2
1
0
0.76
-1.19
6
10
5
100
94
165
156.3
De-icers
118
112
168
159
Radomes
162
156
583
559
FM3/3
3
1.5
1.76
1.14
0.57
9
20
10
155
143
260
225
De-icers
182
170
266
231
Radomes
248
236
877
830
FM3/4
4
2.1
3.22
1.52
1.82
12
30
15
210
192
350
293.8
De-icers
246
228
360
303
Radomes
334
316
1171
 1101
FM3/5
5
2.7
4.31
1.9
2.79
15
40
20
265
241
440
362.6
De-icers
310
286
453
375
Radomes
420
396
1465
1371
FM3/6
6
3.2
5.05
2.28
3.58
15
50
25
320
290
570
431.3
De-icers
374
344
586
447
Radomes
506
476
1759
1642
FM3/7
7
3.8
5.8
22.66
4.25
15
60
30
410
374
665
500.1
De-icers
473
437
684
519
Radomes
627
591
2053
1912
FM3/8
8
4.3
6.33
3.04
4.83
15
70
35
475
433
760
568.8
De-icers
547
505
782
591
Radomes
723
681
2347
2183
FM3/10
10
5.6
7.48
3.8
5.8
15
90
45
600
546
980
706.4
De-icers
690
636
1009
735
Radomes
910
856
2935
2724
FM3/12
12
6.7
8.26
4.56
6.59
15
110
55
710
644
1165
843.9
De-icers
818
752
1200
879
Radomes
1082
1016
3623
3265
 .
NOTES:
  1.  Power gain figure is for each polarization.
  2.  Power rating is based on 40°C ambient. Derating occurs above 2000 Ft.
  3.  Antenna weight, windload and aperture are based on mid-band operation (98.1 MHz.).
  4.  Antennas wil beam tilt and/or null fill require an even number of bays and are center fed.
  5.  Antennas with 2 or more bays come standard with input fine matcher.
  6.  Antennas are supplied with mounting brackets for up to 4 inch diameter leg (uniform cross-section tower.).
  7.  For areas with heavy icing and/or snow conditions, optional radomes or electrical deicers are available.
  8.  S.W.R. Inc. maintains a continuous program of product improvement and therefore reserves the right to change specifications without notice. A 2-year limited warranty on defects in material and workmanship to the original purchaser.
.

57