The completed KY6R Optimized 40M Delta Flag
I did some testing today – one without the Wellbrook FLG100LN, and one with. There is no comparison – the Wellbrook preamp is what makes my design sing. The packaging of the remote preamp fits the frame I built perfectly. I now have a better version of the ALA1530LNP that I loved so much a few years back . . .
This design rocks for 40M – if you want to improve your 40M receive and knock out the noise
The DX Engineering NCC-2 really came to life today on 40M. As modeled – it also works great on 160, 80, 30 an 20.
Wellbrook FLG100LN Preamp
Three things that really stood out in my tests – first – the Front to Back Ratio is what the EZNec model said it would – I could totally null out stations that were off the back of the antenna. Secondly – the NCC-2 phased against the UrbanBeam really worked great – some signals were quieter on the UrbanBeam, and some the KY6R Loop (totally expected – having vertical and horizontal polarization is a good thing). In every case I could knock the noise almost completely away! The third thing was the big surprise – the KY6R Loop was always as strong as the UrbanBeam. This blew me away because the UrbanBeam is up 55′ (yes, soon to be 66′ – when I get around to it – heh heh).
The 880 ohm resistor – before I weather proofed it
I think loop antennas like the Wellbrook ALA1530LNP (still my all time favorite) or the W6LVP Loop (my second favorite) are fine – but they have no front to back but great front to side. What I have done is add SUPERB front to back where I can more surgically null out the noise, with the gain of the 1530LNP loop – which brings the gain of the KY6R Loop up into positive gain territory – rivaling the UrbanBeam up 55′. That’s freaking great – better than I expected – although the EZnec model did suggest that this would be the case. I guess I just thought it was “too good to be true” – and it sure is – heh heh.
The ultimate test will be getting the second loop up – hopefully next weekend, because phasing two of these buggers will be more awesome than even the two Wellbrook ALA1530LNP’s that I phased through the NCC-2 that I had back when I chased 160M DXCC.
Adding a second KY6R Loop into the NCC-2 will be amazing – can’t wait!
Its kind of funny – while working on this project I did ask myself “is it really worth it?”. I had those doubts as far as being a ham and chasing after awards is concerned – but from a “product” perspective – I feel like I just designed an antenna you can’t buy in any store – so that is where all this comes together to answer the question . . .
YES – it has been worth the effort. It was so much fun and it is an idea that now is a product (sort of – open source I guess).
If you love 40M as I do – this could help you with your 40M pursuit . . .
Oh – as a big bonus today – Elecraft Support answered my question – which was why the guy I purchased the K3 from had what looked like a KXV3 installed yet the radio reported that it wasn’t. You see – this rig has the 5 BNC jacks that the board has. Turns out – he had it turned OFF in the config.
That’s $200 I don’t have to spend and also won’t have to send my rig back to Elecraft. Great weekend – great day!