A radio transmission!

Let's break down the information:

* `09:50`: The time of the transmission.

* `JG0HRA/1`: The callsign of the operator. A "1" at the end suggests that JG0HRA is operating on a single sideband (SSB) mode, specifically FM (Frequency Modulation), and not using their main station identifier "/JG0HRA".

* `on JP-1155`: The location of the transmission, which appears to be Kitaurawa Prefectural Park. JP-1155 is likely a grid square or a specific geographical area within Japan.

* `(Kitaurawa Prefectural Park, JP-ST)`: Additional information about the location, including the name of the park and the prefecture (Saitama).

* `433280 FM QSY`: The operating frequency and mode. This suggests that JG0HRA is transmitting on a frequency of 433.28 MHz in FM mode.

* `[JG0HRA]`: A comment or note from the operator, indicating that this transmission is being made by JG0HRA.

It seems like JG0HRA is operating an amateur radio station and is transmitting a message or signal on a specific frequency using FM mode. Is there anything else I can help you with?