Save your self the hassle and do one of these. I am a tech for a cable comp, and it will be alot easier and better to order what you need already done properly. what you will end up with is a much better product and signal. If the connectors arent done right, you will have problems.
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1311.R4.TR11.TRC2.A0.H1.XRG-11.TRS0&_nkw=rg11+coaxial+cable&_sacat=0
http://www.amazon.com/s/ref=nb_sb_ss_c_0_6/179-7666784-6316515?url=search-alias%3Daps&field-keywords=rg-11+coaxial+cable&sprefix=RG-11+%2Caps%2C4728