21730 kHz — 21.73 MHz

Name: FreqBuddy radio frequency database
License: https://freqbuddy.com/

HF / shortwave, 14 m band. 1 station listed.

Stations listed on 21730 kHz
Station	Country	Location	Power (kW)	Schedule (UTC)	Language
Vatican Radio	Vatican City State (Holy See)	Santa Maria di Galeria	250.000	1130-1145	Spanish