Extending the length of a coaxial cable?

[southwestform]

I need to extend the length of a coaxial cable coming out of the wall that connects to my cable modem. Is there anything in particular I should be looking for in a coaxial coupler? I see various options including gold-plated, 3GHz, and more...

I just want to make sure that the signal sent from one cable to the next maintains its speed as best as possible.

Thank you.

 

[jamesmcuk]

I am fairly sure there is nothing to look out for other than not buying a really cheap one. Gold plated ones will allow a better connection that does not oxidise so will be better and more reliable especially if the cable will be subject to any movement however the ones supplied on VM gear are not gold plated and are good up to 154Mbps and probably more.

 

[kira70591]

Contact your ISP and see if they will extend the cable for you. They may charge a service fee but they will use ISP approved fittings. This could cause less headache in the future if you need to have them out for a service call. They could say that the problem is on your end as the fittings are not approved by them. If you have a coax stripper and crimper then you could just purchase a length of RG6 coax (shielded not worth the extra cost as the original line is probably not shielded) and crimp the F-Type connectors onto the length of cable if the ISP would provide them. Connect the two lengths together using a barrel connector. If you get F-Type connectors, make sure that they are of the snap and seal variety.