If you have speakers connected and your browser plays sounds automatically you should be hearing the Micros already, if not use the link below.
The micros are on continuously.
They do not require legal identification (very low power) and so only transmit beeps.
You will only hear them as you get close, how close depends on the sensitivity of your DF set.
When two share a frequency they will be located some distance apart and have a different beep speeds, this allows you to select one to home in on if both are heard at once.
of W,X (1901 KHz) and then Y,Z
(1843 KHz) can be heard by following the link below.
As before you may need to minimise your media player's window, or click back on the tab to re-open this page if you want to refer to it while you listen.