It really helps to have a second receiver. With the antenna disconnected, it should allow you to see how you actually sound on the air. You may need to record the signal so you can talk into the radio and then analyze it after - particularly if you are working with any kind of speech compression or sound equalizer. Beyond that, it's mostly looking at the antenna design and SWR. Can your tuner adequately match the radio to the antenna on the desired bands? Yes, reversebeacon network, and pskreporter or WSPR would all be valid ways to test, but you won't easily be able to match results from one day to the other. When the ionosphere is involved, you're mostly measuring the band conditions, which can vary dramatically from hour to hour and day to day. Still, these tools are very handy for verifying that you are, indeed, 'getting out'. I'm calling CQ on 28.076 right now just for fun.