That is plenty long for 5 GHz. It will work but you will have a loss of .29 dB per foot.
From: That One Guy via Af Sent: Thursday, October 09, 2014 1:09 PM To: af@afmug.com Subject: Re: [AFMUG] ptp650 antenna leads short runs with the radio on the same pipe as the antenna less than 36" in 5ghz On Thu, Oct 9, 2014 at 2:08 PM, Chuck McCown via Af <af@afmug.com> wrote: Totally depends on the frequency and length of run. From: That One Guy via Af Sent: Thursday, October 09, 2014 12:55 PM To: af@afmug.com Subject: [AFMUG] ptp650 antenna leads I hate lmr400 which is what we have always used. Is N-N LMR 195 lead sufficient, or what flexible leads are folks using for antenna connections -- All parts should go together without forcing. You must remember that the parts you are reassembling were disassembled by you. Therefore, if you can't get them together again, there must be a reason. By all means, do not use a hammer. -- IBM maintenance manual, 1925 -- All parts should go together without forcing. You must remember that the parts you are reassembling were disassembled by you. Therefore, if you can't get them together again, there must be a reason. By all means, do not use a hammer. -- IBM maintenance manual, 1925