Comtech-ef-data MIDAS Version 4.X NMS Configuration Bedienungsanleitung Seite 133
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MIDAS 4.X NMS Configuration Rev. 6
Frequency Translations A-1
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Ku-Band Frequency
Translations
The following parameters are configurable for Ku-Band:
Satellite – Uplink Factor Equivalent to Downlink Factor Added to Translation.
Satellite - Downlink Factor Equivalent to LNB LO (Low Noise Block Converter Local Oscillator
frequency).
Common Ku-Band LO’s include 10.0 GHz, 10.75 GHz, and 11.3 GHz.
Satellite - Translation Frequency difference between the Transponder TX Center and the
Transponder RX Center (Ku-Band Default = 2.300 GHz).
Satellite - Hi Side Injection Hi Side Injection is where the LNB LO frequency is higher than the
RX RF frequency and the difference is used to convert to L-Band.
Low Side Injection is where the LNB LO frequency is lower than the
RX RF frequency and the difference is used to convert to L-Band (Ku-
Band default = OFF/Low side injection).
Transponder - TX Center TX center frequency the Ku transponder.
Transponder - RX Center RX center frequency the Ku transponder.
This example shows a 36 MHz Ku-Band transponder with the default case of low side
injection, which results in no frequency inversion. If high side injection is specified, use
the C-Band example, substituting Ku-Band frequencies in the examples. Figure A-1
shows the relationship between the downlink RF frequencies and the corresponding
L-Band IF frequencies for the first transponder of a satellite.
Note: There is a 2 MHz guard band at the lower and upper edges of the transponder, so
the Ku- and L-Band display 40 MHz of bandwidth (FC ± 20 MHz).
- Revision 6 1
- MIDAS Version: 4.X 3
- Network Customer Support 4
- Preface, iii 5
- Preface, iv 6
- Preface, v 7
- Preface, vi 8
- Table of Contents 9
- Preface, viii 10
- IMPORTANT 11
- Concerning this Manual 12
- Disclaimer 12
- NMS Components 15
- Standard Controller 17
- Server Features 17
- Options 17
- Controller Server 18
- Redundancy 18
- Node Components 19
- 2. Click on a menu option 23
- 3. Press the Enter key 23
- ♦ System Administration 29
- Setup and Operation 2–3 31
- 2–4 Setup and Operation 32
- Satellite/System 33
- Parameters 33
- 2–6 Setup and Operation 34
- Transponder 35
- 2–8 Setup and Operation 36
- Setup and Operation 2–9 37
- Bandwidth Pool 38
- Major Bandwidth 39
- Pool Functions 39
- Adding Bandwidth 39
- Private Pools 40
- Deleting Bandwidth 41
- 2–14 Setup and Operation 42
- Toolbar 43
- height 44
- Grid Properties 46
- View Properties 47
- Legend Properties 48
- 2–22 Setup and Operation 50
- Placement Selection 52
- Outbound 53
- Inbound Parameters 53
- Options Parameters 54
- Aloha Parameters 55
- 2–30 Setup and Operation 58
- Node Alignment 60
- 2–34 Setup and Operation 62
- Setting Power 63
- Levels for Traffic 63
- Channels 63
- 2–36 Setup and Operation 64
- 2–38 Setup and Operation 66
- 2–40 Setup and Operation 68
- 2–42 Setup and Operation 70
- 2–44 Setup and Operation 72
- 2–46 Setup and Operation 74
- 2–48 Setup and Operation 76
- User Information 78
- Group Administration 79
- 2–52 Setup and Operation 80
- Add Group 81
- Edit User Privilege 82
- 2–56 Setup and Operation 84
- 2–58 Setup and Operation 86
- 2–60 Setup and Operation 88
- 2–62 Setup and Operation 90
- 2–64 Setup and Operation 92
- Point-to-Multipoint 94
- Data Details 94
- Delete Hunt Groups 95
- 2–68 Setup and Operation 96
- Available Channels 98
- Assigned 99
- 2–72 Setup and Operation 100
- Hunt Groups 102
- Ascending or Descending 102
- Reports Menu 3–1 103
- 3–2 Reports Menu 104
- Reports Menu 3–3 105
- 3–4 Reports Menu 106
- Reports Menu 3–5 107
- 3–6 Reports Menu 108
- Reports Menu 3–7 109
- 3–8 Reports Menu 110
- Reports Menu 3–9 111
- 3–10 Reports Menu 112
- Reports Menu 3–11 113
- 3–12 Reports Menu 114
- Reports Menu 3–13 115
- 3–14 Reports Menu 116
- 4–2 Maintenance Menu 118
- Maintenance Menu 4–3 119
- Specify the 120
- Export Path 120
- Maintenance Menu 4–5 121
- 4–6 Maintenance Menu 122
- Maintenance Menu 4–7 123
- 4–8 Maintenance Menu 124
- Maintenance Menu 4–9 125
- 4–10 Maintenance Menu 126
- Maintenance Menu 4–11 127
- 4–12 Maintenance Menu 128
- Maintenance Menu 4–13 129
- 4–14 Maintenance Menu 130
- Maintenance Menu 4–15 131
- 4–16 Maintenance Menu 132
- Ku-Band Frequency 133
- Translations 133
- Conversion Formulas 134
- An Example Ku-Band 135
- Carrier 135
- System Setup 135
- Space Segment 136
- Control Channel 137
- A-6 Frequency Translations 138
- Frequency Translation A-7 139
- IF to Ku-Band 140
- Frequency Inversion 140
- 70 MHz IF 141
- A-10 Frequency Translations 142
- Frequency Translation A-11 143
- A-12 Frequency Translations 144
- Frequency Translation A-15 147
- A-16 Frequency Translations 148
- Frequency Translation A-17 149
- 480 • 333 • 2200 PHONE 150
- 480 • 333 • 2161 150
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