QRP Tuner/SDR Issue

So I’ve recently built an Omnia SDR (want to give Ron a shout-out for the awesome forum support) and a Four-State QRP Tuner (http://www.4sqrp.com/4stuner.php) to go with it.

Although I’ve run through the instructions and the circuit several times (including having someone else check my work) I’m not getting exactly what’s expected out of my tuner.

Using a 61′ piece of wire for the antenna and 6.5′ counterpoise and trying to match 40/30/20m. I tune the inductor and polyvaricons for the best signal strength on my SDR waterfall. I can see both inductors and the polyvaricons having and effect on the RX strength so I feel that they are behaving as expected. When I think I have the best strength (and it generally looks pretty good), I switch over to TX and try to get a LED SWR bridge match. The issue is that I can’t get the red LED to dim at all (and the green LED doesn’t brighten either).

I’d really like to get the tuner acting as it’s supposed to, but is a good RX match good enough? Since I’m fairly new to HF SDRs, is there something peculiar I should know?

Thanks for your help.

submitted by /u/IronicFrozenSquirrel
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