A radio transmission!

Here's a breakdown of the message:

* `00:36`: The time, likely in 24-hour format.

* `JQ3JUK`: A call sign, identifying the radio operator or station. In amateur radio, these call signs usually follow a specific format and are unique to each operator or organization.

* `on JP-1628(Iwakisan Prefectural Nature Park, JP-YC)`: The location where the transmission is taking place. It appears to be Iwakisan Prefectural Nature Park in Japan (JP), which has an IOTA (Islands on the Air) number of 1628 and a YC prefix.

* `7043 FT8 QSY to 20m soon`: This part of the message refers to the operating frequency. The numbers represent the frequency in kHz, so `7034` is likely a mistake and it's actually `7043`. The mode is FT8 (a digital mode), and "QSY" means "change frequency". The operator plans to change frequency to the 20-meter band soon.

In short, JQ3JUK is operating from Iwakisan Prefectural Nature Park in Japan on the 70.43 MHz frequency using FT8 mode, and will switch to the 20-meter band shortly.