Lattice, monopole and rooftop — 12,400 sites audited from the air with nobody on the steel. Azimuth, tilt, radiation centre and the whole RF panel inventory measured off the capture, four times a year.
The sheet above is a drawing of this. 10 capture waypoints, and every finding called as the aircraft reaches it — scroll sets the target, the mission keeps its own pace, and the page waits for it.
One governed helix around Mast 4412: four rings at twenty-three metres put every panel, mount and feeder run on the record — including the one on the top level that reads 138° where the file says 140 — then the unit walks the compound past a climb kit that stays laid out, and the finale draws the three microwave links out to the horizon.
A structural and RF audit means a rigger, a permit, a rescue plan and a day per site. Twelve thousand four hundred sites makes that arithmetic impossible.
The audit without the climb
Four orbit rings at 23 m radius return every face of the steel — panels, remote radio units, mounts, feeder runs, guy fittings — with nobody leaving the ground.
Robotic inspectionORBIT R 23M · 4 RINGS · CLIMBS 0ORBIT R 23M · 4 RINGS · CLIMBS 0
02
Every co-location swap moves something, and the site file still says what the last engineer wrote down. Panels at 020°, 140° and 260° on paper; something else on the mast.
Azimuth measured, not remembered
The mesh gives azimuth, tilt and radiation centre off the geometry itself — 60.4 m on Mast 4412 — so the site file is corrected from the model instead of from memory.
3D models & DEMsAZ 020/140/260° · TILT 4° · RAD CTR 60.4MAZ 020/140/260° · TILT 4° · RAD CTR 60.4M
03
Four audits a year across 12,400 masts is 49,600 visits. Scheduling that region by region and hoping is how a cycle slips a whole quarter.
Twelve thousand sites, one calendar
Every capture on the portfolio sits on one calendar with its window, its crew and its state — booked, flown, processed, on the record — so a slipped site is visible the day it slips.
Mission schedulingSITES 12 400 · 4×/YR · ONE CALENDARSITES 12 400 · 4×/YR · ONE CALENDAR
The program negotiates with the network, not with gravity: capture fits inside a 40-minute mute window granted at 02:00, and four rings around the mast replace the rigger, the permit and the rescue plan.
InstrumentCadenceOn the record
01
Control fix
Every site, before the first ring
The mast is pinned to survey control before anything flies, so azimuth, tilt and radiation centre come off geometry that holds site to site and quarter to quarter.
Four rings at 23 m radius return every face of the steel — panels, remote radio units, mounts, feeder runs — at 0.6 cm detail. Ring 3 ran at 02:14; the carrier was back on air at 02:40 and nobody climbed.
ORBIT R 23M · 4 RINGS · 0.6CMORBIT R 23M · 4 RINGS · 0.6CM
03
Vertical face pass
Ring to ring, up the feeder ladder
The climb a rigger used to make is flown instead: the feeder ladder, the guy fittings and the aviation beacon inspected from the base pier to the finial, with the anchors at 52.0 m radius closed in the same pass.
Every capture sits on one calendar with its window, its crew and its state — booked, flown, processed, on the record — so a slipped site is visible the day it slips, not at the end of the quarter.
Forty minutes, in a window the network chooses. The sector was muted at 02:00 in low traffic, ring 3 ran at 02:14, and the carrier was back on air at 02:40 with nobody on the steel.
The model is pinned to control at ±1.4 cm on a 412 m baseline with 31 satellites, and the steel is captured at 0.6 cm detail. Close enough that panel B read 138° against a site file that said 140° — and the file was the one that was wrong.
FIX ±1.4CM · 0.6CM · Δ2°FIX ±1.4CM · 0.6CM · Δ2°
Q03
What replaces the rigger's tape and clinometer?
The geometry itself. Azimuth, tilt and radiation centre are measured off the mesh — 020°, 140° and 260° at 4° tilt on Mast 4412, radiation centre 60.4 m — so the site file is corrected from the model instead of from memory.
AZ 020/140/260° · TILT 4° · RAD CTR 60.4MAZ 020/140/260° · TILT 4° · RAD CTR 60.4M
Q04
What does a site audit cost us now?
The climb is gone: 6.0 hours of rigging time saved per site, no permit, no rescue plan, no day on the road for an audit that flies in a 40-minute window. Across the portfolio, that is 49,600 visits a year with nobody on the steel.
PER SITE 6.0H SAVED · CLIMBS 0PER SITE 6.0H SAVED · CLIMBS 0
Q05
Can you actually cover 12,400 sites four times a year?
That is 49,600 captures, and every one sits on one calendar with its window, its crew and its state. A slipped site is visible the day it slips — which is how a cycle stops losing a quarter.
SITES 12 400 · 4×/YR · ONE CALENDARSITES 12 400 · 4×/YR · ONE CALENDAR
Q06
What happens when the model and the site file disagree?
The file is corrected from the model. Panel B's 138° went on the record at 02:38 with the frame behind it, the antenna schedule was amended, and the next audit measures against the corrected figure — 37,200 antennas kept honest this way.
BRIEFS 3 · PROFILES 27 · RECORD CLOSED 02:00BRIEFS 3 · PROFILES 27 · RECORD CLOSED 02:00
Who reads it
Read overnight on a portfolio like this one: last night's mute-window orbits, the antenna schedule against the site files, and the audit calendar at its current state. Three of the 27 profiles wake up to it.
Panel B measured 138° against a site file saying 140° — the file is corrected from the model, and sectors A and C hold at 020° and 260° with the radiation centre confirmed at 60.4 m.
CITES: RING 3 02:14 · MESH MEASURE · SCHEDULE A1–C1
Asset manager
PROFILE 13 / 27
06:40 · PORTFOLIO · 12 400 MASTS
EXPOSURE
The audit cycle holds across the portfolio: four a year on 12,400 sites, every capture booked, flown, processed or on the record — and a site that slips its window is named the day it slips, not found at quarter end.
Nobody was on the steel last night and nobody is rostered onto it today: the audit closed from four rings at 23 m, the beacon and the guy hardware included, and the rescue plan was never stood up.
CITES: ORBIT LOG 02:40 · CLIMBS 0 · RINGS 4
SHEET · 4 OF 48 · TELECOMSHEET · 4 OF 48 · TELECOM
Give us a site list — we will fly four rings around one mast in its mute window and hand you the measured azimuths, the antenna schedule and the corrected site file.