TNX, Drew-san.
It is a very interesting activity to me that historical broadcast stations transmit ancient cryptography codes for amateur radio listeners.
My home is near to JCS CHOSHI Telegraph Station which is the first telegraph commercial service station founded in 1908.
The station is no longer transmitting but just only displayed some old radios and straight keys at museum corner.
I begin to feel like to revive its transmission through the RandomGram activity.
// HIRO, JJ1FXF