Phil- You have made some very good points. However..........

Phil Allison wrote:

"john stewart"

A length of coax sourced & terminated in other than it's characteristic
impedance will support standing waves.

** That is not so - source impedance can be any value as long as the
cable is terminated correctly.

You are correct. However, cable terminated correctly is a special case.
Any other condition will result in multiple reflections. Whenever I was
making measurements in COAX I was damn sure that the source was
as close to a match as I could get it. Otherwise, accuracy goes out the door!!

Wavelenght depends on the cables electrical length.

** Yeah, right, velocity factor is 70% of c.

Depends on the cable used & varies from about 65% to 80% of c.

You are absolutely correct IMO with your argument.

** Huh ?

Still think it's worth a look.

It's possible that a length of that cable could drive an SS Amp which
usually has large BW into instablity. Would be an interesting experiment.

** Good luck finding such an amp - the vast majority have output
"Zobel" networks that make them stable with any value of capacitance.

Not all amplifiers bow at the altar of Zobel. There are many out there,
in particular built by amatuers who don't know what Zobel is & don't care.

A few hundred picofarads is nothing.

It's 20 to 30 pF / ft. A 1/4 wavelength at 10 MHz is about 17 ft
in RG58. Many power FET's would have no problem with that.

............. Phil

Just some thoughts. I could be out to lunch.
Can we use your SS amp as the basis of a trial?????

Cheers (And Beers), John Stewart