Topband: NCC-2 antenna pattern?

[Rick Kunath]

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