70
VMI System Design
VMI Directional Coupler (DC) Table
Insertion Loss 0 4 6 8 11 14 17
5 MHz:
NA 4.0 3.0 2.1 1.3 1.7 1.1 dB
54 MHz:
NA 3.3 2.9 1.2 0.8 .08 .06 dB
550 MHz: NA 4.3 4.2 2.3 1.4 1.3 1.0 dB
750 MHz: NA 4.8 4.5 2.7 1.7 1.7 1.1 dB
860 MHz: NA 4.7 4.5 2.9 2.0 1.8 1.4 dB
0, 4, 8, 11, 14, 17 dB
VMI Equalizer (EQ) Table
VMI-CEQ8V 860 MHz Equalizers
EQ
Tilt Comp
Loss @
Loss @
Loss @
Loss @
Value
@ 860 MHz 54 MHz
550 MHz
750 MHz 860 MHz
-4
-2.56
-1.12
-2.37
-3.19
-3.68
-3
-1.87
-0.97
-1.96
-2.50
-2.84
-2
-1.23
-0.65
-1.15
-1.54
-1.88
-1
-0.87
-0.03
-0.31
-0.67
-0.90
0
0.00
0.00
0.00
0.00
0.00
1
1.07
-1.52
-1.23
-0.60
-0.46
2
1.89
-2.23
-1.24
-0.16
-0.35
3
2.88
-3.05
-1.38
-0.10
-0.17
4
3.47
-3.81
-2.01
-0.79
-0.35
5
3.86
-4.35
-2.13
-0.94
-0.49
6
4.45
-4.85
-2.32
-0.80
-0.40
7
5.42
-5.67
-2.42
-0.62
-0.25
8
5.99
-6.37
-2.00
-0.79
-0.38
9
7.08
-7.21
-2.68
-0.68
-0.13
10
7.47
-7.89
-2.94
-0.90
-0.43
11
8.21
-8.55
-3.24
-0.96
-0.34
12
9.01
-9.25
-1.60
-0.51
-0.24
13
9.85
-10.27
-4.00
-1.32
-0.42
14
10.76
-10.89
-1.37
-0.36
-0.14
15
11.18
-11.30
-1.40
-0.36
-0.13
16
12.04
-12.29
-1.63
-0.55
-0.25
17
12.69
-12.87
-1.50
-0.48
-0.18
18
13.64
-13.84
-1.86
-0.56
-0.20
19
14.36
-14.52
-1.75
-0.50
-0.16
20
14.94
-15.15
-1.92
-0.58
-0.21
Note:
For additional design information, see the 2000 CATV Reference Guide found
on our website: www.blondertongue.com
Содержание AMM-806
Страница 86: ...79 TVCB PC Installation ...
Страница 93: ...86 SMI Installation Torque Patterns 1 Start Here 2 3 4 5 6 1 Start Here 2 3 4 4 PORT 8 PORT ...
Страница 125: ...118 Fiber Optics Fiber Loss vs Path Length Single Mode 1550 nm ...
Страница 156: ...149 Cable TV Channel Format NTSC NTSC Composite Video Waveform ...
Страница 157: ...150 US Frequency Spectrum ...
Страница 158: ...151 FCC Aeronautical Band Frequencies Used for Communication and Navigation ...
Страница 171: ...164 F C x 32 Temperature Conversion Nomograph C F FAHRENHEIT F CELSIUS C 9 5 C F 32 5 9 KELVIN K K C 273 ...
Страница 175: ...168 Common CATV Symbols ...
Страница 176: ...169 Common CATV Symbols ...
Страница 177: ...170 Digital L Band Distribution Symbols ...
Страница 178: ...171 Digital L Band Distribution Symbols ...
Страница 183: ...176 Typical Cable Attenuation Chart in dB 100 Feet 68 F 20 C ...
Страница 187: ...180 Echo Rating Graph ...
Страница 188: ...181 Signal to Interference Limits Non Coherent Carriers ...
Страница 190: ...183 Heterodyne Modulator Analog ...
Страница 191: ...184 Heterodyne Processor Analog ...
Страница 213: ...206 Multiplexers ...
Страница 215: ...208 Antenna Stacking Methods to Increase Received Signal Level NOTE Refer to Antenna Spacing Chart for dimensions ...
Страница 216: ...209 Antenna Spacing Mounting Channelized Antennas on the Same Mast NOTE Refer to Antenna Spacing Chart for dimensions ...
Страница 285: ...Rev 8 0 ...