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MIL-STD-188-181A appendix A

Table A-I. Current and UHF Follow-On frequency plans.


Fleet broadcast


dec#	hex#	uplink		downlink	plan#

1	1 	SHF 	  	250.350 	W1 	N1 
2 	2 	SHF 		250.400 		N'1
3 	3 	SHF 		250.450 	A1 	O1
4 	4 	SHF 		250.500 		O'1
5 	5 	SHF 		250.550 	B1 	P1
6 	6 	SHF 		250.600 		P'1
7 	7 	SHF 		250.650 	C1 	Q1
8 	8 	SHF 		250.700 		Q'1


NAVY 25kHz CHANNELS, 41 MHz OFFSET


dec#	hex#	uplink		downlink	plan#

9 	9 	292.850 	251.850 	W3 	N2 
10 	0A 	292.950 	251.950 	A2 	O2
11 	0B 	293.050 	252.050 	B2 	P2
12 	0C 	293.150 	252.150 	C2 	Q2
13 	0D 	294.550 	253.550 	W4 	N3
14 	0E 	294.650 	253.650 	A3 	O3
15 	0F 	294.750 	253.750 	B3 	P3 
16 	10 	294.850 	253.850 	C3 	Q3
17 	11 	296.250 	255.250 	W5 	N4
18 	12 	296.350 	255.350 	A4 	O4
19 	13 	296.450 	255.450 	B4 	P4 
20 	14 	296.550 	255.550 	C4 	Q4
21 	15 	297.850 	256.850 	W6 	N5
22 	16 	297.950 	256.950 	A5 	O5
23 	17 	298.050 	257.050 	B5 	P5
24 	18 	298.150 	257.150 	C5 	Q5
25 	19 	299.350 	258.350 	W7 	N6
26 	1A 	299.450 	258.450 	A6 	O6
27 	1B 	299.550 	258.550 	B6 	P6
28 	1C 	299.650 	258.650 	C6 	Q6
29 	1D 	306.250 	265.250 	W8 	N7
30 	1E 	306.350 	265.350 	A7 	O7
31 	1F 	306.450 	265.450 	B7 	P7
32 	20 	306.550 	265.550 	C7 	Q7
33 	21 	307.750 	266.750 	* 	N8
34 	22 	307.850 	266.850 	A8 	O8
35 	23 	307.950 	266.950 	B8 	P8
36 	24 	308.050 	267.050 	C8 	Q8
37 	25 	309.150 	268.150 	N9
38 	26 	309.250 	268.250 	A9 	O9
39 	27 	309.350 	268.350 	B9 	P9
40 	28 	309.450 	268.450 	C9 	Q9
41 	29 	310.650 	269.650 	N10
42 	2A 	310.750 	269.750 	A10 	O10
43 	2B 	310.850 	269.850 	B10 	P10
44 	2C 	310.950 	269.950 	C10 	Q10 

* 307.750 was used as the Gapfiller channel A uplink frequency. 
266.750 is not in correct use as a downlink frequency.


DoD 500kHz CHANNELS/UFO 25kHz CHANNELS


dec#	hex#	uplink		downlink	plan#

45 	2D 	293.950 	260.350 	A23-1 
46 	2E 	293.975		260.375 	A23-2 	N11
47 	2F 	294.000 	260.400 	A23-3
48 	30 	294.025 	260.425 	A23-4 	P11
49 	31 	294.050 	260.450 	A23-5
50 	32 	294.075 	260.475 	A23-6 	N12
51 	33 	294.100 	260.500 	A23-7
52 	34 	294.125 	260.525 	A23-8 	P12
53 	35 	294.150 	260.550 	A23-9
54 	36 	294.175 	260.575 	A23-10 	O11
55 	37 	294.200 	260.600 	A23-11
56 	38 	294.225 	260.625 	A23-12 	Q11
57 	39 	294.250 	260.650 	A23-13
58 	3A 	294.275 	260.675 	A23-14 	O12
59 	3B 	294.300 	260.700 	A23-15
60 	3C 	294.325 	260.725 	A23-16 	Q12
61 	3D 	294.350 	260.750 	A23-17
62 	3E 	294.375 	260.775 	A23-18
63 	3F 	294.400 	260.800 	A23-19
64 	40 	294.425 	260.825 	A23-20
65 	41 	294.450 	260.850 	A23-21
66 	42 	295.050 	261.450 	B23-1
67 	43 	295.075 	261.475 	B23-2
68 	44 	295.100 	261.500 	B23-3
69 	45 	295.125 	261.525 	B23-4
70 	46 	295.150 	261.550 	B23-5
71 	47 	295.175 	261.575 	B23-6 	N13
72 	48 	295.200 	261.600 	B23-7
73 	49 	295.225 	261.625 	B23-8 	P13
74 	4A 	295.250 	261.650 	B23-9
75 	4B 	295.275 	261.675 	B23-10 	N14
76 	4C 	295.300 	261.700 	B23-11
77 	4D 	295.325 	261.725 	B23-12 	P14
78 	4E 	295.350 	261.750 	B23-13
79 	4F 	295.375 	261.775 	B23-14 	N15
80 	50 	295.400 	261.800 	B23-15
81 	51 	295.425 	261.825 	B23-16 	P15
82 	52 	295.450 	261.850 	B23-17
83 	53 	295.475 	261.875 	B23-18 	N16
84 	54 	295.500 	261.900 	B23-19
85 	55 	295.525 	261.925 	B23-20 	P16
86 	56 	295.550 	261.950 	B23-21
87 	57 	295.650 	262.050 	C23-1
88 	58 	295.675 	262.075 	C23-2 	O13
89 	59 	295.700 	262.100 	C23-3
90 	5A 	295.725 	262.125 	C23-4 	Q13 
91 	5B 	295.750 	262.150 	C23-5
92 	5C 	295.775 	262.175 	C23-6 	O14
93 	5D 	295.800 	262.200 	C23-7
94 	5E 	295.825 	262.225 	C23-8 	Q14
95 	5F 	295.850 	262.250 	C23-9
96 	60 	295.875 	262.275 	C23-10 	O15
97 	61 	295.900 	262.300 	C23-11
98 	62 	295.925 	262.325 	C23-12 	Q15
99 	63 	295.950 	262.350 	C23-13
100 	64 	295.975 	262.375 	C23-14 	O16
101 	65 	296.000 	262.400 	C23-15
102 	66 	296.025 	262.425 	C23-16 	Q16
103 	67 	296.050 	262.450 	C23-17
104 	68 	296.075 	262.475 	C23-18
105 	69 	296.100 	262.500 	C23-19
106 	6A 	296.125 	262.525 	C23-20
107 	6B 	296.150 	262.550 	C23-21
108 	6C 	297.150 	263.550 	W2-1
109 	6D 	297.175 	263.575 	W2-2 	N17
110 	6E 	297.200 	263.600 	W2-3
111 	6F 	297.225 	263.625 	W2-4 	P17
112 	70 	297.250 	263.650 	W2-5
113 	71 	297.275 	263.675 	W2-6 	N18
114 	72 	297.300 	263.700 	W2-7
118 	76 	297.400 	263.800 	W2-11
119 	77 	297.425 	263.825 	W2-12 	Q17
120 	78 	297.450 	263.850 	W2-13
121 	79 	297.475 	263.875 	W2-14 	O18
122 	7A 	297.500 	263.900 	W2-15
123 	7B 	297.525 	263.925 	W2-16 	Q18
124 	7C 	297.550 	263.950 	W2-17
125 	7D 	297.575 	263.975 	W2-18
126 	7E 	297.600 	264.000 	W2-19
127 	7F 	297.625 	264.025 	W2-20
128 	80 	297.650 	264.050 	W2-21


GAPFILLER 500 kHz CHANNELS/UFO 5 kHz CHANNELS


dec#	hex#	uplink		downlink	plan#

129 	81 	302.445 	248.845 		N27 
130 	82 	302.450 	248.850 	G1
131 	83 	302.455 	248.855 		N28
132 	84 	302.465 	248.865 		N29
133 	85 	302.475 	248.875 	G2 	N30
134 	86 	302.485 	248.885 		N31
135 	87 	302.495 	248.895 		N32
136 	88 	302.500 	248.900 	G3
137 	89 	302.505 	248.905 		N33
138 	8A 	302.515 	248.915 		N34
139 	8B 	302.525 	248.925 	G4 	N35
140 	8C 	302.535 	248.935 		N36
141 	8D 	302.545 	248.945 		N37
142 	8E 	302.550 	248.950 	G5
143 	8F 	302.555 	248.955 		N38
144 	90 	302.565 	248.965 		N39
145 	91 	302.575 	248.975 	G6 	O27
146 	92 	302.585 	248.985 		O28
147 	93 	302.595 	248.995 		O29
148 	94 	302.600 	249.000 	G7
149 	95 	302.605 	249.005 		O30
150 	96 	302.615 	249.015 		O31
151 	97 	302.625 	249.025 	G8 	O32
152 	98 	302.635 	249.035 		O33
153 	99 	302.645 	249.045 		O34
154 	9A 	302.650 	249.050 	G9
155 	9B 	302.655 	249.055 		O35
156 	9C 	302.665 	249.065 		O36
157 	9D 	302.675 	249.075 	G10 	O37
158 	9E 	302.685 	249.085 		O38
159 	9F 	302.695 	249.095 		O39
160 	A0 	302.700 	249.100 	G11
161 	A1 	302.705 	249.105 		P27
162 	A2 	302.715 	249.115 		P28
163 	A3 	302.725 	249.125 	G12 	P29
164 	A4 	302.735 	249.135 		P30
165 	A5 	302.745 	249.145 		P31
166 	A6 	302.750 	249.150 	G13
167 	A7 	302.755 	249.155 		P32
168 	A8 	302.765 	249.165 		P33
169 	A9 	302.775 	249.175 	G14 	P34
170 	AA 	302.785 	249.185 		P35
171 	AB 	302.795 	249.195 		P36
172 	AC 	302.800 	249.200 	G15
173 	AD 	302.805 	249.205 		P37
174 	AE 	302.815 	249.215 		P38
175 	AF 	302.825 	249.225 	G16 	P39
176 	BO 	302.835 	249.235 		Q27
177 	B1 	302.845 	249.245 		Q28
178 	B2 	302.850 	249.250 	G17
179 	B3 	302.855 	249.255 		Q29
180 	B4 	302.865 	249.265 		Q30
181 	B5 	302.875 	249.275 	G18 	Q31
182 	B6 	302.885 	249.285 		Q32
183 	B7 	302.895 	249.295 		Q33
184 	B8 	302.900 	249.300 	G19
185 	B9 	302.905 	249.305 		Q34
186 	BA 	302.915 	249.315 		Q35
187 	BB 	302.925 	249.325 	G20 	Q36
188 	BC 	302.935 	249.335 		Q37
189 	BD 	302.945 	249.345 		Q38
190 	BE 	302.950 	249.350
191 	BF 	302.955 	249.355 		Q39


GAPFILLER 25 kHz (UFO CHAN. N8 UPLINK)


dec#	hex#	uplink		downlink	plan#

192 	CO 	307.750 	254.150 	GA 


GAPFILLER 25 kHz


dec#	hex#	uplink		downlink	plan#

193 	C1 	311.150 	257.550 	GB 


AFSAT/LEASAT NON-PROC. 5 kHz REPLACE-MENT CHANNELS


dec#	hex#	uplink		downlink	plan#

194 	C2 	316.955 	243.855 	W9 
195 	C3 	316.960 	243.860 	W10
196 	C4 	316.975 	243.875 	W11
197 	C5 	317.000 	243.900 	W12
198 	C6 	317.010 	243.910 	W13
199 	C7 	317.015 	243.915 		N19
200 	C8 	317.025 	243.925 		N20
201 	C9 	317.035 	243.935 		N21
202 	CA 	317.045 	243.945 	A11 	N22 
203 	CB 	317.055 	243.955 	A12 	N23
204 	CC 	317.065 	243.965 	A14 	N24
205 	CD 	317.075 	243.975 	A16 	N25
206 	CE 	317.085 	243.985 	A18 	N26
207 	CF 	317.090 	243.990 	A19
208 	DO 	317.095 	243.995 	A20 	O19
209 	D1 	317.100 	244.000 	A21
210 	D2 	317.105 	244.005 		O20
211 	D3 	317.110 	244.010 	A22
212 	D4 	317.115 	244.015 		O21
213 	D5 	317.125 	244.025 		O22
214 	D6 	317.135 	244.035 		O23
215 	D7 	317.145 	244.045 	B11 	O24
216 	D8 	317.155 	244.055 	B12 	O25
217 	D9 	317.165 	244.065 	B14 	O26
218 	DA 	317.175 	244.075 	B16 	P19
219 	DB 	317.185 	244.085 	B18 	P20
220 	DC 	317.190 	244.090 	B19
221 	DD 	317.195 	244.095 	B20 	P21
222 	DE 	317.200 	244.100 	B21
223 	DF 	317.205 	244.105 		P22
224 	EO 	317.210 	244.110 	B22
225 	E1 	317.215 	244.115 		P23 
226 	E2 	317.225 	244.125 		P24
227 	E3 	317.235 	244.135 		P25
228 	E4 	317.245 	244.145 	C11 	P26
229 	E5 	317.255 	244.155 	C12 	Q19
230 	E6 	317.265 	244.165 	C14 	Q20
231 	E7 	317.275 	244.175 	C16 	Q21
232 	E8 	317.285 	244.185 	C18 	Q22
233 	E9 	317.290 	244.190 	C19 
234 	EA 	317.295 	244.195 	C20 	Q23
235 	EB 	317.300 	244.200 	C21 
236 	EC 	317.305 	244.205 		Q24
237 	ED 	317.310 	244.210 	C22
238 	EE 	317.315 	244.215 		Q25
239 	EF 	317.325 	244.225 		Q26
240	FO
241 	F1
242 	F2
243 	F3
244 	F4
245 	F5
246 	F6
247 	F7
248 	F8
249 	F9
250 	FA
251 	FB
252 	FC
253 	FD
254 	FE
255 	FF


Key to channel numbers: There are several frequency plans
used on UHF satellites for the DoD. The FLTSATCOM satellites use
frequency plans A, B, and C. 
 The Leased Satellites (LEASATs) use frequency plans X, Y, and Z, which are
abbreviated versions of plans A, B, and C (LEASATs have fewer channels). 
In addition, LEASAT has plan W, which shares frequencies with AFSATCOM
polar frequency plan E. 
Gapfiller has been labeled for this table as G. 
UHF Follow-On (UFO) uses four frequency plans, N, O, P, and Q. 
In addition, there are alternate Fleet Broadcast downlink
frequencies labeled N', O', P', and Q'.
Table A-I lists present Channel and UFO Channel as follows:
Frequency plan, transponder number, and an optional transponder
subdivision. As an example, Channel Number 46 (Hex 2E) is A23-2.
This corresponds to FLTSATCOM frequency plan A, a DoD 500 kHz
wideband channel (used as a 25 kHz sub-channel) which is being
replaced by UFO 25 kHz channel N11 (frequency plan N,  transponder 11).