The Pattern That Breaks Every 47 Days — Seven Cycles, Zero Deviation, Until Now

March 2025 to January 2026: Perfect consistency.

I've been tracking a specific signal pattern on 4.625 MHz since last spring. Not continuous transmission — burst activity. Three minutes of encrypted digital traffic, always at 0317 hours, repeating every 47 days without fail. I've logged seven complete cycles in my notebooks.

The intervals were precise:

• Cycle 1-2: 47 days
• Cycle 2-3: 47 days
• Cycle 3-4: 47 days
• Cycle 4-5: 47 days
• Cycle 5-6: 47 days
• Cycle 6-7: 47 days

Military exercises don't run on 47-day cycles. Weather satellites don't either. Commercial operations favor 30-day patterns, or multiples thereof. 47 is prime. 47 is deliberate.

January 26, 2026, 0317 hours: Silence.

Cycle 8 should have transmitted. I was set up at The Clearing with three receivers, fresh batteries, clear conditions. I'd even brought coffee this time — after seven cycles, I was confident.

Nothing.

I swept the adjacent frequencies. I checked my equipment. I waited until 0400. Complete radio silence on that band.

The mundane explanation:

Whoever was transmitting simply stopped. Equipment relocated. Operation concluded. Mission parameters changed. It happens. Military contractors finish contracts. Research projects get funding cuts. Someone's experimental communication system got replaced with something better.

Seven cycles of data doesn't mean an eighth was guaranteed. I'm a former engineer — I know equipment lifecycles. I know how projects end.

But here's what I keep thinking about:

Seven cycles times 47 days equals 329 days. Add 17 and you get 346. That's not quite a year, but it's close enough to make me wonder about seasonal factors. And that number 17 again — always the 17.

I've been doing this for seven years now, chasing signals and lights and patterns that never quite resolve into proof. Most of the time, things have ordinary explanations. Equipment fails. Satellites pass over. People conduct legitimate operations they don't feel like explaining to a guy on a ridge with a ham radio.

But sometimes — and I mean *sometimes* — the ordinary explanation feels like it's working too hard. Like it's technically possible but statistically improbable.

A 47-day cycle running for 329 days, then stopping precisely when it would have created a recognizable annual pattern? That's either remarkable discipline in operational security, or I'm looking at deliberate pattern suppression.

I'll keep monitoring 4.625 MHz. If it resumes at day 94 (47 × 2), that tells me one thing. If it resumes at day 346 (329 + 17), that tells me something else entirely.

*Another entry for the log.*

— JohnD_TN