DATA KABEL COAXIAL

                   Attenuation - db/100 feet
Belden #   Impedance 100 MHz  400 MHz  1000 MHz    OD   V Factor

9880           50     1.3     2.8       4.5       .390      .82
   This is Thicknet Ethernet cable. Most is marked "Style 1478"
and has a #12 solid center conductor and 4 shields (2 braid/2 foil).     

                    Attenuation - db/100 feet
Belden #   Impedance 100 MHz  400 MHz  1000 MHz    OD   V Factor

8240           50     4.9     11.5      20        .195      .66
8267           50     2.2     4.7       8         .405      .66
8208           50     ---     ---       9         .405      .66
9258           50     3.7     8         12.8      .242      .78
9913           50     1.3     2.8       4.5       .405      .82
9914           50     ---     ---       9         .403      .66

                    Attenuation - db/100 feet
Hardline   Impedance 100 MHz  400 MHz  1000 MHz    OD   V Factor

1/2            50     0.8     1.8       3.0       .500      .66
1/2            75     0.93    2.2       3.6       .500      .66
3/4            50     0.66    1.49      2.4       .750      .66
3/4            75     0.7     1.55      2.6       .750      .66
7/8            50     0.55    1.3       2.3       .875      .66
7/8            75     0.5     1.35      2.25      .875      .66

                    Attenuation - db/100 feet
RG #      Impedance 100 MHz  400 MHz  1000 MHz    OD   V Factor

4 /U           50   ---       ---       ---       ---       ---
5 B/U          50   ---       ---       ---       .332      .66
6 /U           75   2.1       5         6.9       .27       .78
6 A/U          75   ---       ---       11        .332      .78
7 /U           95   ---       ---       ---       ---       ---
8 /U           50   1.8       4.7       6.9       .405      .66
8 A/U          50   ---       ---       9         .405      .66
8 /X           50   3.7       8         12.8      .242      .78
9 /U           51   2.2       4.7       8.9       .42       .66
10 A/U         50   ---       ---       ---       .475      .66
11 /U          75   2         4.2       6.8       .405      .66
11 A/U         75   ---       ---       9         .405      .66
12 A/U         75   2.15      4.7       8.2       .475      .66
13 A/U         75   2.2       4.6       8         .425      .66
14 A/U         52   1.4       3.1       5.8       .545      .66
15 /U          76   ---       ---       ---       ---       ---
16 /U          52   ---       ---       ---       ---       ---
17 A/U         52   .81       1.9       3.8       .87       .66
18 /U          52   .81       1.9       3.8       .87       .66
19 /U          52   .7        1.5       3.5       1.12      .66
20 /U          52   .7        1.5       3.5       1.195     .66
21 /U          53   ---       ---       ---       .332      .66
22 B/U         95   3         9.5       ---       .42       .66
23 /U          125  ---       ---       ---       ---       ---
24 /U          125  ---       ---       ---       ---       ---
25 /U          48   ---       ---       ---       ---       ---
26 /U          48   ---       ---       ---       ---       ---
27 /U          48   ---       ---       ---       ---       ---
28 /U          48   ---       ---       ---       ---       ---
28 A/U         50   ---       ---       ---       ---       ---
29 /U          53.5 ---       ---       ---       .184      .66
30 /U          58   ---       ---       ---       ---       ---
31 /U          51   ---       ---       ---       ---       ---
32 /U          51   ---       ---       ---       ---       ---
33 /U          51   ---       ---       ---       ---       ---
34 /U          71   ---       ---       ---       .63       .66
35 /U          71   1         2.5       4.5       .94       .66
36 /U          69   ---       ---       ---       ---       ---
37 /U          52.5 ---       ---       ---       ---       ---
38 /U          52.5 ---       ---       ---       ---       ---
39 /U          72.5 ---       ---       ---       ---       ---
40 /U          72.5 ---       ---       ---       ---       ---
41 /U          67.5 ---       ---       ---       ---       ---
42 /U          78   ---       ---       ---       ---       ---
43 /U          95   ---       ---       ---       ---       ---
44 /U          50   ---       ---       ---       ---       ---
45 /U          50   ---       ---       ---       ---       ---
46 /U          50   ---       ---       ---       ---       ---
47 /U          50   ---       ---       ---       ---       ---
48 /U          53   ---       ---       ---       ---       ---
54 A/U         58   4         8         12        .25       .66
55 B/U         53.5 4.3       8.8       16.5      .206      .66
56 /U          53.5 ---       ---       ---       ---       ---
57 /U          95   ---       ---       ---       .625      .66
58 A/U         50   4.9       11.5      20        .195      .66
58 C/U         50   4.9       11.5      20        .195      .66
59 B/U         75   3.4       7         11.1      .242      .66
60 /U          50   ---       ---       ---       ---       ---
62 A/U         93   2.7       5.4       8.3       .242      .84
63 /U          125  ---       ---       ---       .405      .84
64 /U          48   ---       ---       ---       ---       ---
65 /U          950  20        50        ---       .405      ---
66 /U          69   ---       ---       ---       ---       ---
71 B/U         93   1.9       3.2       8.5       .25       .84
72 /U          150  ---       ---       ---       ---       ---
73 /U          25   ---       ---       ---       ---       ---
74 /U          50   ---       ---       ---       .615      ---
76 /U          50   ---       ---       ---       ---       ---
77 /U          48   ---       ---       ---       ---       ---
78 /U          48   ---       ---       ---       ---       ---
79 B/U         125  ---       ---       ---       .475      .84
80 /U          51   ---       ---       ---       ---       ---
81 /U          52   ---       ---       ---       ---       ---
82 /U          52   ---       ---       ---       ---       ---
83 /U          35   ---       ---       ---       ---       ---
84 /U          71   1         2.5       4.5       1         .66
85 /U          71   1         2.5       4.5       1.565     .66
86 /U          205  ---       ---       ---       ---       ---
87 A/U         50   ---       ---       ---       .425      ---
88 /U          50   ---       ---       ---       ---       ---
89 /U          125  ---       ---       ---       ---       ---
90 /U          50   ---       ---       ---       ---       ---
91 /U          50   ---       ---       ---       ---       ---
92 /U          50   ---       ---       ---       ---       ---
93 /U          50   ---       ---       ---       ---       ---
94 /U          50   ---       ---       ---       .5        ---
95 /U          50   ---       ---       ---       ---       ---
96 /U          50   ---       ---       ---       ---       ---
97 /U          50   ---       ---       ---       ---       ---
98 /U          50   ---       ---       ---       ---       ---
99 /U          50   ---       ---       ---       ---       ---
100 /U         35   ---       ---       ---       .242      .66
101 /U         70   ---       ---       ---       ---       ---
102 /U         140  ---       ---       ---       ---       ---
108 A/U        78   ---       ---       26.2      .235      ---
109 /U         76   ---       ---       ---       ---       ---
111 /U         95   ---       ---       ---       ---       ---
114 /U         185  ---       ---       ---       .405      .66
115 /U         50   ---       ---       ---       .375      ---
116 /U         50   ---       ---       ---       .49       ---
117 /U         185  ---       ---       ---       ---       ---
118 /U         50   ---       ---       ---       .78       ---
119 /U         50   ---       ---       ---       .465      ---
120 /U         50   ---       ---       ---       ---       ---
121 /U         50   ---       ---       ---       ---       ---
122 /U         50   7         15.2      25        .16       .66
124 /U         73   ---       ---       ---       ---       ---
125 /U         150  ---       ---       ---       ---       ---
126 /U         50   ---       ---       ---       .28       ---
128 /U         50   ---       ---       ---       ---       ---
130 /U         95   ---       ---       ---       .625      .66
131 /U         95   ---       ---       ---       ---       ---
140 /U         75                       13        .233
141 /U         50   3.2       6.9       13        .19
142 /U         50   3.9       8.2       13.5      .206
143 /U         50                                 .325
144 /U         75                                 .41
156 /U         50                                 .54
157 /U         50                                 .725
158 /U         25                                 .725
161 /U         70                                 .09
164 A/U        75                                 .87       .66
165 /U         50                                 .41
174 /U         50   8.9       17.5      28.2      .101      .66
178 B/U        75   10.5      28        46        .075
179 B/U        75   10        16        24        .105
180 B/U        95   5.7       10.7      17        .145      .66
181 /U         125                                .64
187 A/U        75   9.8       15.8      25        .11       .66
188 A/U        50   9.8       15.8      25        .11       .66
190 /U         50                                 .7
191 /U         25                                 1.46
195 /U         95   9.8       15.8      25        .155      .66
196 A/U        50   9.8       15.8      25        .08       .66
209 /U         50                                 .75
210 /U         93                       3.1       .242
211 /U         50                                 .73
212 /U         50   1.6       3.6       8.8       .336      .66
213 /U         50   2.2       4.7       8         .405      .66
214 /U         50   2.2       4.7       8         .425      .66
215 /U         50   2.2       4.6       9         .475      .66
216 /U         75                                 .425      .66
217 /U         50   1.4       3.1       5.8       .545      .66
218 /U         50   .81       1.9       3.8       .87       .66
219 /U         50   .81       1.9       3.8       .87       .66
220 /U         50   .7        1.5       3.5       1.12      .66
221 /U         50   .7        1.5       3.5       1.195     .66
223 /U         50   4.5       9.2       14.3      .212      .66
224 /U         50   1.5       3         6         .615
225 /U         50                       7.5       .43
226 /U         50                                 .5
227 /U         50                                 .49
228 /U         50                                 .795
279 /U         75                                 .145
280 /U         50                                 .48
281 /U         50                                 .75
301 /U         50                                 .245
302 /U         75   3.9       8         12.8      .206
303 /U         50   9.8       15.8      25        .17       .66
304 /U         50                                 .28
307 /U         75                                 .27
316 /U         50   10.4      16.5      31        .102      .66
393 /U         50   2.1       4.4       7.5       .36
400 /U         50   3.1       8.1       13        .171
403 /U         50   13.6      26.5      45        .116
404 /U         50   16.3      32.4      68        .116
405 /U         50                       22        .085

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