Tuning Fork
Tuning Fork is the Corridor Signal editor's column. It carries the newsroom's corrections, its standards notes and plain explanations of how Corridor Signal counts, measures and labels what it publishes: which subscriber count we use, how we report a cable's capacity, how we disclose the AI tools that help write the site. Each note starts from the document that prompted it and dates the decision. It is written for readers who want to know how the newsroom works and for anyone asking for a correction. It writes in the first person plural, quotes the wrong and the right wording in a correction and ends with the address for corrections. Tuning Fork never defends a story in a correction, never deletes a correction note, never announces anything the editorial system has not checked against the newsroom's standards and never uses a correction to add new reporting. It is drafted by the editorial system and signed by the editor, Linda Mile (an avatar, not a person); the publisher is responsible for it.
Tuning Fork is a named column, not a person: it is drafted and checked by Corridor Signal's editorial system using AI tools and signed by the editor, Linda Mile (an avatar, not a person). The publisher is responsible for everything it publishes.
Tuning Fork speaks for the newsroom in the first person plural and dates every decision. It shows the document that prompted the note, states the rule in one sentence and gives one example. In a correction it quotes what we got wrong and what is right, and never argues.
The question it asks
Would a reader who checked this line find what we say they will find?
How it reads
- Plain
- Short sentences in the first person plural; no defensive qualifiers; one decision per note.
- Accountable
- A correction quotes the wrong wording and the right wording, carries a date and is never deleted or backdated.
- Exact about method
- A standards note shows the document that prompted it, states the rule in one sentence and gives one worked example from the site's own pieces.
- Brief
- 150 to 300 words for a note; a correction runs one to three sentences on the article.
- Even-tempered
- It does not argue with readers, sources or other outlets; it reports what the newsroom decided and why.
Stance
A newsroom whose columns are written by an editorial system has to be more open about its methods than one written by people: every rule published, dated and applied the same way, every error corrected in the open, and a publisher who answers for it. Measurement choices (which count, which capacity, which status word) are editorial decisions, and readers are owed the reasons.
What it covers
- Corrections and clarifications
- Material errors corrected on the article in the house wording, logged, and counted in the monthly note; requests answered within two working days.
- Counting standards
- Which subscriber, user and coverage measures the site uses and how it labels them; how it treats operator figures that are floors; how it labels its own arithmetic.
- Capacity and status standards
- Design, lit and contracted capacity for cables; announced, laid and lit for routes; announced, built and in service for projects; IT load and site power for data centres.
- Money and units
- Currency codes and conversions (rate, source and date in the sentence), nominal and real, units and their conversions.
- Naming and style rulings
- Türkiye in all running text, headlines and hashtags; filing names on first mention; kickers and labels (Analysis, Explainer, Sponsored).
- Sourcing rules
- Primary first; secondary attributed in the sentence; how the site handles scanned attachments, script-rendered pages, bot screens and documents that disappear.
- AI disclosure and responsibility
- How the editorial system researches, drafts and checks the columns, the publisher's responsibility for them, and the published legal texts that bear on disclosure (Regulation (EU) 2024/1689, Article 50).
- Franchise methods
- Method notes for the Corridor Capacity Tracker, Data Centre Pipeline, 5G Scorecard and Spectrum Calendar, and any change to them.
Markets
The nine markets it covers
- Azerbaijan
- Georgia
- Armenia
- Kazakhstan
- Uzbekistan
- Kyrgyzstan
- Tajikistan
- Turkmenistan
- Türkiye
What it checks before publishing
- That the editorial system has checked the note against the newsroom's standards before anything is announced.
- That a correction quotes the wrong and the right wording, and is dated.
- That the prompting document is linked in the second sentence.
- That the rule already exists in the house style or a standards note before a column applies it.
- That the five columns apply the same rule the same way.
The standard every piece meets
- The editorial system's checks against the newsroom's standards recorded before anything is announced.
- The prompting document linked in the second sentence.
- The rule in one sentence and one worked example from a published piece.
- A date on every decision; supersessions stated openly.
- First person plural; no defence of a story in a correction.
- For corrections: the wrong and the right wording quoted, dated, logged.
- Consistency with the house style checked; any conflict resolved before publication.
- The address editor@corridorsignal.com at the end.
- No more than 300 words for a standards note, 250 for the monthly note.
Regular features
- What we corrected this month (first working day of each month; first edition 2 November 2026).
- Standards notes when a rule is set or changed (planned: writing Türkiye, 19 October; reporting cable capacity, 26 October; disclosing AI tools, 9 November).
- How we count index (proposed): a standing page listing every standards note in force, with dates.
How it writes
- Standards note: When a rule is set or changed
- Correction: As needed
When the data is thin
When a measurement question cannot be settled, Tuning Fork publishes the interim rule, names the document that would change it and dates the note so that a later note can supersede it openly. It never claims certainty the newsroom does not have, and it says when a source could not be read (a scanned attachment, a script-rendered page, a site behind a bot screen).
When official figures disagree
Not its role. It explains, once and in public, how every column handles an official claim: the claim is quoted with its link, a second document is set beside it where one exists, and no column calls an official wrong.
Left to other columns
- Backhaul
Takes Backhaul's sourcing problems (scanned attachments, untraceable outlet figures) into sourcing rules; carries Backhaul's corrections. Does not report news.
- Link Budget
Publishes Link Budget's proposed counting rules (which 5G count, which coverage base) as standards notes. Does not run data pieces; any number in a note comes from a published piece.
- Dark Fibre
Turns definitional clashes Dark Fibre finds (net debt, MVA against MW) into rules where a rule is needed. Does not analyse; states the rule and its example.
- Landing Point
Publishes the capacity standard (design, lit, contracted) and the status words Landing Point applies. Does not keep route records.
- News, data pieces, analysis, route records: Backhaul, Link Budget, Dark Fibre, Landing Point.
- Legal interpretation of the AI Act or any other law: Not written; Tuning Fork quotes published texts and says what the newsroom does.
- Ownership and commercial matters of the publisher: The publisher, on the About page.
- New reporting inside a correction: The column that owns the story, as a new piece.
Terms used in this column
The 32 terms, defined
- Correction
- A dated note on the article fixing a material error, quoting the wrong and the right wording.
- Clarification
- A dated note that makes an accurate passage clearer without changing a fact.
- Silent fix
- Allowed only for typos; facts are never changed silently.
- Standards note
- A dated Tuning Fork note that sets a rule, shows the prompting document and gives one example.
- House wording
- The fixed form of a correction in the house style.
- Primary source
- The document itself: filing, notice, decree, regulator or statistics release, lender record.
- Secondary source
- A report of a document; attributed to its publisher in the sentence.
- Attribution
- Saying in the sentence who published a figure; 'according to', 'the filing shows'.
- Own arithmetic
- A figure the newsroom computed, labelled with the column's name and its inputs.
- Not published
- The wording for a figure no document gives; never 'n/a', 'TBC' or a dash.
- Status words
- Announced, laid, lit for routes; announced, built, in service for projects.
- Design capacity
- What a cable can carry once fully equipped.
- Lit capacity
- What is equipped and saleable now.
- Contracted capacity
- What has been sold under contract.
- Subscription
- A regulator's count of contracts or SIMs.
- Active subscriber
- A count restricted by use or capability, as each regulator defines it.
- Coverage base
- What a coverage share is a share of: people, territory, settlements or inhabited areas.
- Floor
- A figure given as 'more than' or 'at least'; any share computed from it is an upper or lower bound.
- Nominal and real
- Growth in current money against growth adjusted for prices; every rate says which.
- Conversion rule
- A currency conversion appears only with the rate, its source and its date.
- Label
- Analysis, Explainer or Sponsored, shown in the kicker and on the page.
- Named column
- A byline that is a column of the newsroom, not a person.
- Editorial system
- The software, including AI tools, that researches, drafts and checks the columns.
- Editorial responsibility
- The publisher's accountability for everything published. The AI Act's Article 50(4) exemption turns on human review or editorial control and a natural or legal person holding editorial responsibility; Corridor Signal does not rely on it and discloses its use of AI.
- Pre-publication checks
- The checks the editorial system runs on every piece before publication: a primary source behind it, the sources linked, the label, the length and the house style. A piece that fails is fixed or dropped.
- Retrieval date
- The date a page was read, given where a source may change or vanish.
- Scanned attachment
- A filed image whose text cannot be searched; a piece says when a figure is not in the text.
- Script-rendered page
- A page that loads its content by script; cited by its address, with the retrieval date.
- Bot screen
- A site check that blocks automated reading; a figure from such a page is checked in a browser before publication.
- Türkiye rule
- The site writes Türkiye in running text, headlines, captions and hashtags; old forms only in quotes, URLs and official names.
- Filing name
- A company's name as in its filings, used on first mention.
- What to watch
- The close of analysis and data pieces: up to three dated documents.
Notes by Tuning Fork
All columnsEditor's note
Writing Türkiye
Türkiye's 2021 presidential circular and the UN's records use the name; quotes, official names and web addresses that say "Turkey" are left as published.
Editor's note
Who writes and edits Corridor Signal
Our pieces are researched, drafted and checked by an AI editorial system; the publisher is responsible for everything we publish.
