MIL-STD-188-181
APPENDIX D
FREQUENCY PLANS
TABLE 40-I. LEASAT receive and transmit frequencies.
Channel
|
Plan
|
Downlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth
(kHz)
|
1
|
W
X
Y
Z
|
250.35
250.45
250.55
250.65
|
SHF*
SHF*
SHF*
SHF*
|
25
25
25
25
|
2
|
W
X
Y
Z
|
263.80
260.60
261.70
262.30
|
297.40
294.20
295.30
295.90
|
500
500
500
500
|
3
|
W
X
Y
Z
|
251.85
251.95
252.05
252.15
|
292.85
292.95
293.05
293.15
|
25
25
25
25
|
4
|
W
X
Y
Z
|
253.55
253.65
253.75
253.85
|
294.55
294.65
294.75
294.85
|
25
25
25
25
|
5
|
W
X
Y
Z
|
255.25
255.35
255.45
255.55
|
296.25
296.35
296.45
296.55
|
25
25
25
25
|
6
|
W
X
Y
Z
|
256.85
256.95
257.05
257.15
|
297.85
297.95
298.05
298.15
|
25
25
25
25
|
7
|
W
X
Y
Z
|
258.35
258.45
258.55
258.65
|
299.35
299.45
299.55
299.65
|
25
25
25
25
|
8
|
W
X
Y
Z
|
265.25
265.35
265.45
265.55
|
306.25
306.35
306.45
306.55
|
25
25
25
25
|
*Uplink frequency is super high frequency from
7.9 to 8.4 GHz on channel 1.
TABLE 40-I. LEASAT receive and transmit frequencies. (continued)
Channel
|
Plan
|
Downlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth
(kHz)
|
9
|
W
X
Y
Z
|
243.855
243.955
244.055
244.155
|
316.955
317.055
317.155
317.255
|
5
5
5
5
|
10
|
W
X
Y
Z
|
243.860
243.960
244.060
244.160
|
316.960
317.060
317.160
317.260
|
5
5
5
5
|
11
|
W
X
Y
Z
|
243.875
243.975
244.075
244.175
|
316.975
317.075
317.175
317.275
|
5
5
5
5
|
12
|
W
X
Y
Z
|
243.900
244.000
244.100
244.200
|
317.000
317.100
317.200
317.300
|
5
5
5
5
|
13
|
W
X
Y
Z
|
243.910
244.010
244.110
244.210
|
317.010
317.110
317.210
317.310
|
5
5
5
5
|
TABLE 40-II. FLTSATCOM receive and transmit frequencies.
Channel
|
Plan
|
Downlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth
(kHz)
|
1
|
A
B
C
|
250.45
250.55
250.65
|
SHF*
SHF*
SHF*
|
25
25
25
|
2
|
A
B
C
|
251.95
252.05
252.15
|
292.95
293.05
293.15
|
25
25
25
|
3
|
A
B
C
|
253.65
253.75
253.85
|
294.65
294.75
294.85
|
25
25
25
|
4
|
A
B
C
|
255.35
255.45
255.55
|
296.35
296.45
296.55
|
25
25
25
|
5
|
A
B
C
|
256.95
257.05
257.15
|
297.95
298.05
298.15
|
25
25
25
|
6
|
A
B
C
|
258.45
258.55
258.65
|
299.45
299.55
299.65
|
25
25
25
|
7
|
A
B
C
|
265.35
265.45
265.55
|
306.35
306.45
306.55
|
25
25
25
|
8
|
A
B
C
|
266.85
266.95
267.05
|
307.85
307.95
308.05
|
25
25
25
|
9
|
A
B
C
|
268.25
268.35
268.45
|
309.25
309.35
309.45
|
25
25
25
|
10
|
A
B
C
|
269.75
269.85
269.95
|
310.75
310.85
310.95
|
25
25
25
|
*Uplink frequency is super high frequency from
7.9 to 8.4 GHz on channel 1.
TABLE 40-II. FLTSATCOM receive and transmit frequencies. (continued)
Channel
|
Plan
|
Downlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth
(kHz)
|
11
|
A
B
C
|
243.945
244.045
244.145
|
317.045
317.145
317.245
|
5
5
5
|
12
|
A
B
C
|
243.955
244.055
244.155
|
317.055
317.155
317.255
|
5
5
5
|
13
|
A
B
C
|
243.960
244.060
244.160
|
317.060
317.160
317.260
|
5
5
5
|
14
|
A
B
C
|
243.965
244.065
244.165
|
317.065
317.165
317.265
|
5
5
5
|
15
|
A
B
C
|
243.970
244.070
244.170
|
317.070
317.170
317.270
|
5
5
5
|
16
|
A
B
C
|
243.975
244.075
244.175
|
317.075
317.175
317.275
|
5
5
5
|
17
|
A
B
C
|
243.980
244.080
244.180
|
317.080
317.180
317.280
|
5
5
5
|
18
|
A
B
C
|
243.985
244.085
244.185
|
317.085
317.185
317.285
|
5
5
5
|
19
|
A
B
C
|
243.990
244.090
244.190
|
317.090
317.190
317.290
|
5
5
5
|
20
|
A
B
C
|
243.995
244.095
244.195
|
317.095
317.195
317.295
|
5
5
5
|
21
|
A
B
C
|
244.000
244.100
244.200
|
317.100
317.200
317.300
|
5
5
5
|
TABLE 40-II. FLTSATCOM receive and transmit frequencies. (concluded)
Channel
|
Plan
|
Downlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth
(kHz)
|
22
|
A
B
C
|
244.010
244.110
244.210
|
317.110
317.210
317.310
|
5
5
5
|
23
|
A
B
C
|
260.600
261.700
262.300
|
294.200
295.300
295.900
|
500
500
500
|
TABLE 40-III. MARISAT (Gapfiller) receive and transmit frequencies.
Channel
|
Plan
|
Downlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth
(kHz)
|
A
|
|
254.150
|
307.750
|
25
|
B
|
|
257.550
|
311.150
|
25
|
C
|
|
|
|
500
|
|
|
1
|
248.850
|
302.450
|
25*
|
|
|
2
|
248.875
|
302.475
|
25*
|
|
|
3
|
248.900
|
302.500
|
25*
|
|
|
4
|
248.925
|
302.525
|
25*
|
|
|
5
|
248.950
|
302.550
|
25*
|
|
|
6
|
248.975
|
302.575
|
25*
|
|
|
7
|
249.000
|
302.600
|
25*
|
|
|
8
|
249.025
|
302.625
|
25*
|
|
|
9
|
249.050
|
302.650
|
25*
|
|
|
10
|
249.075
|
302.675
|
25*
|
|
|
11
|
249.100
|
302.700
|
25*
|
|
|
12
|
249.125
|
302.725
|
25*
|
|
|
13
|
249.150
|
302.750
|
25*
|
|
|
14
|
249.175
|
302.775
|
25*
|
|
|
15
|
249.200
|
302.800
|
25*
|
|
|
16
|
249.225
|
302.825
|
25*
|
|
|
17
|
249.250
|
302.850
|
25*
|
|
|
18
|
249.275
|
302.875
|
25*
|
|
|
19
|
249.300
|
302.900
|
25*
|
|
|
20
|
249.325
|
302.925
|
25*
|
*In operation, communications on the 500-kHz
wideband channel (Channel C) is accomplished
using frequency-division multiple access (FDMA).
The channel is divided into 25-kHz subchannels
with transmission data rates varying between 75 and 16000 bps.
|
TABLE 40-IV. UHF follow-on receive and transmit frequencies.
Channel
|
Plan
|
Downlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth (kHz)
|
1
|
N
O
P
Q
N'
O'
P'
Q'
|
250.350
250.450
250.550
250.650
250.400
250.500
250.600
250.700
|
SHF*
SHF*
SHF*
SHF*
SHF*
SHF*
SHF*
SHF*
|
25
|
2
|
N
O
P
Q
|
251.850
251.950
252.050
252.150
|
292.850
292.950
293.050
293.150
|
25
|
3
|
N
O
P
Q
|
253.550
253.650
253.750
253.850
|
294.550
294.650
294.750
294.850
|
25
|
4
|
N
O
P
Q
|
255.250
255.350
255.450
255.550
|
296.250
296.350
296.450
296.550
|
25
|
5
|
N
O
P
Q
|
256.850
256.950
257.050
257.150
|
297.850
297.950
298.050
298.150
|
25
|
6
|
N
O
P
Q
|
258.350
258.450
258.550
258.650
|
299.350
299.450
299.550
299.650
|
25
|
7
|
N
O
P
Q
|
265.250
265.350
265.450
265.550
|
306.250
306.350
306.450
306.550
|
25
|
*Uplink frequency is super high frequency from
7.9 to 8.4 GHz on channel 1.
TABLE 40-IV. UHF follow-on receive and transmit frequencies. (continued)
Channel
|
Plan
|
Downlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth (kHz)
|
8
|
N
O
P
Q
|
266.750
266.850
266.950
267.050
|
307.750
307.850
307.950
308.050
|
25
|
9
|
N
O
P
Q
|
268.150
268.250
268.350
268.450
|
309.150
309.250
309.350
309.450
|
25
|
10
|
N
O
P
Q
|
269.650
269.750
269.850
269.950
|
310.650
310.750
310.850
310.950
|
25
|
11
|
N
O
P
Q
|
260.375
260.575
260.425
260.625
|
293.975
294.175
294.025
294.225
|
25
|
12
|
N
O
P
Q
|
260.475
260.675
260.525
260.725
|
294.075
294.275
294.125
294.325
|
25
|
13
|
N
O
P
Q
|
261.575
262.075
261.625
262.125
|
295.175
295.675
295.225
295.725
|
25
|
14
|
N
O
P
Q
|
261.675
262.175
261.725
262.225
|
295.275
295.775
295.325
295.825
|
25
|
15
|
N
O
P
Q
|
261.775
262.275
261.825
262.325
|
295.375
295.875
295.425
295.925
|
25
|
16
|
N
O
P
Q
|
261.875
262.375
261.925
262.425
|
295.475
295.975
295.525
296.025
|
25
|
TABLE 40-IV. UHF follow-on receive and transmit frequencies. (continued)
Channel
|
Plan
|
Qownlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth (kHz)
|
17
|
N
O
P
Q
|
263.575
263.775
263.625
263.825
|
297.175
297.375
297.225
297.425
|
25
|
18
|
N
O
P
Q
|
263.675
263.875
263.725
263.925
|
297.275
297.475
297.325
297.525
|
25
|
19
|
N
O
P
Q
|
243.915
243.995
244.075
244.155
|
317.015
317.095
317.175
317.255
|
5
|
20
|
N
O
P
Q
|
243.925
244.005
244.085
244.165
|
317.025
317.105
317.185
317.265
|
5
|
21
|
N
O
P
Q
|
243.935
244.015
244.095
244.175
|
317.035
317.115
317.195
317.275
|
5
|
22
|
N
O
P
Q
|
243.945
244.025
244.105
244.185
|
317.045
317.125
317.205
317.285
|
5
|
23
|
N
O
P
Q
|
243.955
244.035
244.115
244.195
|
317.055
317.135
317.215
317.295
|
5
|
24
|
N
O
P
Q
|
243.965
244.045
244.125
244.205
|
317.065
317.145
317.225
317.305
|
5
|
25
|
N
O
P
Q
|
243.975
244.055
244.135
244.215
|
317.075
317.155
317.235
317.315
|
5
|
TABLE 40-IV. UHF follow-on receive and transmit frequencies. (continued)
Channel
|
Plan
|
Qownlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth (kHz)
|
26
|
N
O
P
Q
|
243.985
244.065
244.145
244.225
|
317.085
317.165
317.245
317.325
|
5
|
27
|
N
O
P
Q
|
248.845
248.975
249.105
249.235
|
302.445
302.575
302.705
302.835
|
5
|
28
|
N
O
P
Q
|
248.855
248.985
249.115
249.245
|
302.455
302.585
302.715
302.845
|
5
|
29
|
N
O
P
Q
|
248.865
248.995
249.125
249.255
|
302.465
302.595
302.725
302.855
|
5
|
30
|
N
O
P
Q
|
248.875
249.005
249.135
249.265
|
302.475
302.605
302.735
302.865
|
5
|
31
|
N
O
P
Q
|
248.885
249.015
249.145
249.275
|
302.485
302.615
302.745
302.875
|
5
|
32
|
N
O
P
Q
|
248.895
249.025
249.155
249.285
|
302.495
302.625
302.755
302.885
|
5
|
33
|
N
O
P
Q
|
248.905
249.035
249.165
249.295
|
302.505
302.635
302.765
302.895
|
5
|
34
|
N
O
P
Q
|
248.915
249.045
249.175
249.305
|
302.515
302.645
302.775
302.905
|
5
|
TABLE 40-IV. UHF follow-on receive and transmit frequencies. (concluded)
Channel
|
Plan
|
Downlink
Frequency
(MHz)
|
Uplink
Frequency
(MHz)
|
Nominal
Bandwidth (kHz)
|
35
|
N
O
P
Q
|
248.925
249.055
249.185
249.315
|
302.525
302.655
302.785
302.915
|
5
|
36
|
N
O
P
Q
|
248.935
249.065
249.195
249.325
|
302.535
302.665
302.795
302.925
|
5
|
37
|
N
O
P
Q
|
248.945
249.075
249.205
249.335
|
302.545
302.675
302.805
302.935
|
5
|
38
|
N
O
P
Q
|
248.955
249.085
249.215
249.345
|
302.555
302.685
302.815
302.945
|
5
|
39
|
N
O
P
Q
|
248.965
249.095
249.225
249.355
|
302.565
302.695
302.825
302.955
|
5
|