Originally Posted by
TEEEJ
Since the start of the conflict a possibly joint US/Israeli Number Station has appeared on shortwave. Such a Number Station will be used to send messages to anti-Iranian regime groups/agents. It took a while for the Iranians to act on the transmissions and they are now jamming the frequencies. The Iranians are using the same bubble jammers as they use against news radio stations beamed into Iran.
The Iranians are currently playing Whack-a-Mole trying to jam the number station frequencies
For those without the relevant kit, look for the Twente SDR on the web. They cover the relevant band.
Ok, let's be more helpful - here's the link.
Twente SDR