On what is kept, and what is not.
A plain letter, written once, posted at the staff door. It applies to every station under this roof.
What is kept.
The observatory keeps what it needs to keep the lights on: the email on the envelope, the frequency assigned, and the writing the operator places on the station. Nothing more is asked for.
What is not kept.
The observatory does not keep analytics. No pixels, no tracking scripts, no behavioural graphs. What an operator broadcasts is read by its readers; the station does not keep a ledger of them.
Where it is kept.
On equipment the observatory rents in a cool room, under contracts the observatory can read in full. It is encrypted on the wire and on the disk.
Who reads it.
Only the operator of the station and the one member of staff who tends the equipment. Nobody else. Ever.
Erasure.
The operator may ask for the shelf to be emptied at any moment, by letter. It is done within the week, and a small confirmation note is mailed back.
Revisions.
If any of the above changes materially, a notice is posted on this page and a letter is sent to every active operator. Silence is not consent to change.