It appears to be a log entry from a ham radio operator. Here's a breakdown of the information:

* `09:40`: The time of the log entry, in hours and minutes.

* `JL1DEC`: The call sign of the ham radio operator making the contact, which is a combination of their country code (Japan, "JA" but used as "JL"), license class ("1") and individual call sign ("DEC").

* `on JP-1135`: This indicates that the contact was made on a specific amateur radio repeater or frequency, in this case, one located on JP-1135, which is likely a geographic location (e.g. a mountain) in Japan.

* `(Utsunomiya Prefectural Nature Park, JP-TC)`: This provides more context about the location of the repeater, specifically that it's located at Utsunomiya Prefectural Nature Park in Tochigi prefecture (JP-TC is the IATA code for the region).

* `7041 FT8 ft8[JL1DEC]`: The frequency and mode used to make contact with JL1DEC. Here:

+ `7041`: The frequency being used, in kHz.

+ `FT8`: The digital mode used (in this case, the popular amateur radio mode for weak signal communications).

+ `ft8`: This suggests that the contact was a reverse beacon network entry, which indicates that JL1DEC's transmission was detected on the same FT8 frequency by another station and reported.

+ `[JL1DEC]`: The bracketed call sign likely indicates that this log entry is specifically about JL1DEC's contact, rather than any other information.

This log entry appears to be from a ham radio operator tracking contacts made using weak signal digital modes like FT8.