[Elecraft] Antenna query

[R Webb]

Gents,

I have a KX1 which I want to take with me on a trip to Phoenix, AZ in early
March.  I wonder if there is anyone out there that has tried the portable
wire antenna as suggested in the KX1 material but used a feedline of some
sort with it.  I'd like to get the antenna a bit away from the operating
position and wonder if coaxial cable, ladder line, or TV feedline might
work.

Needless to say I'd still need/use the ATU in the KX1. 

Anyone has any thoughts? 

Thanks.

Ralph, VE7OM