I tried putting my radio control transmitter (for an airplane) near my oscilloscope. I wanted to see if it would detect any radio signals.
I saw pulses across the screen. As I pushed the stick in different directions, my oscilloscope showed the changing pulse lengths.
The signal was on a 72 MHz carrier. However my oscilloscope is only good up to a megahertz.
To this day I don't understand how I could see those pulses. I guess it was a case of the transmitter putting out a strong enough signal that something just had to show up.
Likewise you may see something. Your carrier wave may come through by itself, if your scope goes up to 27 mHz.
Or, try tuning a shortwave radio to 27 mHz. You may hear audio beeps as your carrier intermodulates with other broadcasts. You may have to hunt around by tuning the radio. Or tune your carrier up and down.