Nothing wrong with 9913... Just be SURE you seal it up good at the connections, otherwise your air core coax turns into a water pipe... LOLI've had good results with belden 9913 and a 75ft run on 800MHz. I run it into an active multicoupler for use with multiple receivers. Works good.
All good points... However, many scanner antenna's have F connectors on them anyway, if not you can convert easily with adapters. There is even compression fit BNC connectors for RG6 that go on as quick and easy as an F connector.It's a fairly good idea to use a feed line of an impedance that will be compatible with both the antenna and the antenna. Of course, having a low level of loss is also nice. Best way I can think of to determine which coax would be best for your particular circumstances is to take a look at a 'loss' table and select the feed line that best satisfies your requirements -and- wallet.
And then there's the 'practical' side of things, as in putting on the proper connectors etc. Cable that uses aluminum shielding is a PITA to work with for most people, it's hard to solder to. And just how flexible is that cable? Can you make the required bends and thread the stuff where it has to go? A compromise here and there, if properly chosen, isn't all that terrible, you know?
Disclaimer:if i was you id go get http://www.timesmicrowave.com/products/lmr/downloads/22-25.pdf
by far best cable I've had and very low loss as others stated above you cant beat it