v1=4.5 mhz
v2=7.7 mhz
vd=3.2mhz
v0=1.3mhz

vf=.68

SoL=300,000,000 m/s
WL(m)=SoL/F(mhz)
QWL=SoL/(4xF(mhz))
39.37 in/m
12 in/ft
3.28 ft/m


v0 would be the distance to 1/4WL


v1=4.88
v2=9.67
d=53'
vd=-4.79

31.3m @ 100% vf
102.7ft
/2 = 51.3


212 / Vd (0.66) = RG-213/U aka A/U or RG-58 A/U
253 / Vd (0.79) = FHJ4-50 (spiral 1/2" hardline)
263 / Vd (0.82) = RG-8/M aka /X
270 / Vd (0.84) = RG8/U aka 9913
273 / Vd (0.85) = LMR400
283 / Vd (0.88) = LDF4-50A (coaxial 1/2" hardline)


468/FdMhz * VF = ft
468 / 4.79 * 0.79 = 77 ft (est 75ft)