That’s the thing, on 160m the lengths can be substantial.
But the point of the discussion had to do with impedance more than length losses, if I recall.
A good way to start a riot 
is to ask a bunch of hams which is better:
- RG6 or LMR400
- A 1/4 wave or a 5/8 wave.
2 Likes
And the winner is: 450 Ohms ladder line. 
2 Likes
It entirely depends on the specific application…
Bingo! A lot of amateurs can’t get their head around the fact that an unshielded feeder can work better than a length of coax which is shielded but under certain circumstances, it’s far better and a less lossy. My doublet was fed with 450 ohm open feeder to the smart tuner and then coax back to the shack.
That looks somewhat higher than 450 ohm but the impedance of open line feeder doesn’t really matter.
The ladder line in the photo is 600 Ω “open wire line”
| type | impedance(Ω) | Velocity Factor (%c) |
|---|---|---|
| twin-lead | 300 | 82% |
| ladder line | 450, 600 | 95% |
| coax | 50, 75 | 66% |
1 Like
Giving one of the RadarBox filters a try. While it seems to help when using the shorter cable, its not much better (if any) than adding the 18" of cable at the end. Still trying configurations to figure out where things could be improved.