So, Tom, how would you comment upon a transistorised rig of 50 ohms
impedance unbalanced output connected to an unbalanced pi configuration
antenna coupling unit (variable C1 between input and ground, variable
series L in the hot lead, and variable C2 between output and ground)
followed by a balun consisting of about 20 or so turns of coax around a
large diameter coil former and the output of the balun connected to a
450 ohm window line running to an inverted vee antenna slightly longer
than that required to be resonant at 80 metres and used on 160 metres
and all the HF bands?
Does this sound a reasonable set-up? I wanted to avoid iron or ferrite
cored toroids because of perceived difficulties in getting low loss
performance across such a wide frequency range.
Many thanks and 73
Kevin
VK3DAP / ZL2DAP
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