And the matched loss per unit length of the resulting 150 Ohm twin will also be exactly the same as the 75 Ohm coax. Steve G3TXQ On 23/02/2012 04:10, Jim Lux wrote: > On 2/22/12 3:44 PM, Steve London wrote: >> Is there any reason to think that the velocity factor would be different than >> that of the 75 ohm coax ? >> > Nope..it's exactly the same. > >