Good evening to the group,
I've cobbled together a Quick Basic Pi-L program that calculates the coils at
the nominal output impedance (52 ohms) and at the high end of the wider bands.
It then recalculates the C's, the effective Q and the midpoint Z at higher
(100 ohm) and lower (25 ohm) load impedances and at the band edges to allow for
real world margins. The L's remain fixed during this second pass.
Unfortunately, I "lost" my older "standard" version Pi-L program in a Gatesian
event a couple years back.
Does anyone have a (modern verison) Pi-L program handy who could provide some
check L & C values?
A single point should suffice... say:
2000 ohm input
300 ohm mid-point
52 ohm output
at 4 MHz
Q = 10
73 & Thanks!
Marv WC6W
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