It appears it may have indeed been a transmitter glitch that kept Radio Australia from broadcasting into North America with their typical blowtorch signal on 9,580 kHz yesterday.
After publishing a post about this yesterday, I received quite a few reports confirming that RA could not be heard in North America. I even received a report from Mike in New Zealand who couldn’t hear RA on 9,580 kHz with his Yaesu FT-817.
I did, however, receive two reports from listeners stating that they could hear a very faint signal from RA on 9,580 kHz–long after I had tuned off frequency. This might explain the carrier I saw on my spectrum display yesterday. Perhaps Shepparton turned down the power on 9,580 kHz for maintenance purposes?
Either way, I’m simply happy to hear my old friend back on 9,580. Since we are officially under the new (reduced) broadcast plan, I hope this means that we’ll at least Radio Australia until they change the plan again.