Antenna gain question

We have a 1242 AP and an ANT2506 external antenna. From what I've read I want to use a gain value of 10 for this antenna. However, there will be a 50 ft cable (AIR-CAB050LL) between antenna and access point. Do we need to adjust the gain setting for the cable?                  

Here is a link regarding low loss cable
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00801c12c2.shtml
Online calculator:
http://www.timesmicrowave.com/cgi-bin/calculate.pl
Cisco uses LMR-400-DB for <50'
Thanks,
Scott
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