I'm not sure we still understand the intended application of the
original poster, I know I don't.
I've done lots of work with loops and loop arrays phased either
passively (active or entirely passive external phaser boxes) or actively
phased via an SDR but none of that would eliminate the need for RX
protection on the receive antenna and any electronics associated with
it. So if the OP is trying to get away from any protection from the TX
energy, I think this is false hope. A loop mounted preamp makes that
more complicated. And The NCC2 does have options for protection boards
for TX internally. There are several types available and also internal
preamps. But it cannot set a specific amplitude and phase angle on the
phasing. I don't have one and haven't ever had the pleasure of using
one, but those that do tell me they enjoy them and they work well
especially for live listening. I do like the idea of having the
electronics at the shack end of things and as little as possible at the
antenna when possible, though depending on the specifics you will have
VACTROL devices or other termination devices at at the antenna with at
least some antenna types.
Preset patterns and unattended work are another case entirely and this
is best done with specific phase coherent dual-channel SDRs and a
specific SDR application.
I think doing what the OP might want as I might understand it is
possible, but I'd like to hear more from him about his hopes for the
project.
Rick Kunath, K9AO
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