An Installation Pocket Reference Guide.pdf - Anixter
An Installation Pocket Reference Guide.pdf - Anixter
An Installation Pocket Reference Guide.pdf - Anixter
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|4. Coaxial Cable<br />
F Connector<br />
• The 75-ohm, screw-threaded couplers are used with RG-59, RG-6<br />
and RG-11 type coaxial cables.<br />
• It is standard for cable television systems.<br />
• It is simple to install and economical.<br />
• It meets the specifications of CATV/MATV systems.<br />
• A single crimp on the attached ferrule terminates the connector.<br />
Figure 4.5 – F Series Coax Connector<br />
Bend Radius<br />
Current military coaxial standards do not specify bend radius; however, various<br />
manufacturers do provide guidance. Check with manufacturers for specifics.<br />
Special care should be taken when pulling a coaxial cable around bends. Using<br />
too much force or too tight of a bend can deform the dielectric and cause a drop<br />
in transmission performance.<br />
Testing<br />
Testing coax performance includes the following:<br />
• Impedance anomaly<br />
• Return loss<br />
• Attenuation or insertion loss<br />
• Signal level<br />
Note: Use a signal strength meter to verify that the right signal level is available<br />
(check installed length and possible damage). Contact your <strong>An</strong>ixter sales<br />
representative to learn more about tools available for testing coax.<br />
Table 4.4 – Typical Maximum Length<br />
RG-59 RG-6 RG-11<br />
CCTV 750–1,000 ft. 1,000–1,500 ft. 1,500–3,000 ft.<br />
Range depends on cable and connector performance, environment, signal frequency,<br />
and transmission and reception equipment.<br />
|42 1.800.ANIXTER