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Rapid Action Mission Mast (RAMM) Technical Details
2 © 2014 Selex ES Ltd – All rights reserved
Rapid Action Mission Mast (RAMM): Overview
• Joint collaboration between Selex ES Ltd
and Rolatube Expeditionary Systems
• Compact Mast
• Line of Sight (LoS) antenna(s) fully
integrated within the composite of the
mast.
• Plug and play
• Set up and take down time only 2
minutes each
• Environmentally qualified to Mil Std
810G
• Three variants:
• 30-108MHz
• 225-512MHz
• 30-108 & 225-512MHz dual band in 1 mast
• Power: 25W
3 © 2014 Selex ES Ltd – All rights reserved
Tactical VHF: VSWR
1
2
3
4
5
30 40 50 60 70 80 90 100 110
VSW
R
Frequency (MHz)
4 © 2014 Selex ES Ltd – All rights reserved
Tactical UHF: VSWR
1
2
3
4
5
225 245 265 285 305 325 345 365 385 405 425 445 465 485 505 525
VSW
R
Frequency (MHz)
5 © 2014 Selex ES Ltd – All rights reserved
VHF - UHF Isolation in Dual Band RAMM
-60
-50
-40
-30
-20
-10
0
0 100 200 300 400 500 600
S21
(d
B)
Frequency (MHz)
6 © 2014 Selex ES Ltd – All rights reserved
Tactical VHF: Swept Gain
Realised Gain at
input connector
including embedded
cable loss
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
30 40 50 60 70 80 90 100 110
Gai
n (
dB
i)
Frequency (MHz)
7 © 2014 Selex ES Ltd – All rights reserved
Tactical UHF: Swept Gain
Realised Gain at
input connector
including embedded
cable loss
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
225 245 265 285 305 325 345 365 385 405 425 445 465 485 505 525
Frequency (MHz)
8 © 2014 Selex ES Ltd – All rights reserved
Omni-directional Azimuth Gain: VHF
Realised Gain at
input connector
including embedded
cable loss
-30
-25
-20
-15
-10
-5
0
5
10
010
2030
40
50
60
70
80
90
100
110
120
130
140
150
160170180190200
210
220
230
240
250
260
270
280
290
300
310
320
330
340350
360
30MHz
70MHz
108MHz
9 © 2014 Selex ES Ltd – All rights reserved
Omni-directional Azimuth Gain: UHF
Realised Gain at
input connector
including embedded
cable loss
-30
-25
-20
-15
-10
-5
0
5
10
010
2030
40
50
60
70
80
90
100
110
120
130
140
150
160170180190200
210
220
230
240
250
260
270
280
290
300
310
320
330
340350
360
225MHz
370MHz
512MHz
10 © 2014 Selex ES Ltd – All rights reserved
NATO Stock Numbers (NSNs) – VHF RAMM
11 © 2014 Selex ES Ltd – All rights reserved
NATO Stock Numbers (NSNs) – UHF RAMM
12 © 2014 Selex ES Ltd – All rights reserved
NATO Stock Numbers (NSNs) – VHF/UHF RAMM
13 © 2014 Selex ES Ltd – All rights reserved
NATO Stock Numbers (NSNs) – Optional Extras
THANK YOU FOR YOUR ATTENTION
Selex ES Ltd
Sigma House - Christopher Martin Road, Basildon
Essex SS14 3EL
Tel: +44 (0) 1268 823400 www.selex-es.com
Dr Simon Benham CEng
Sales and Marketing Manager
+44(0)7793 424521