Spec-check of the sweep on the LR1110 (two analysts + adversarial
verify): per-bin standby() parked in STDBY_RC and re-paid the ~5 ms
DIO3-TCXO startup every bin (~10 ms/bin, ~2x the budget) — bins now
park in STDBY_XOSC via the raw 0x01 byte (RadioLib's STANDBY_XOSC
define is bugged identical to STANDBY_RC); one CalibImage over the
whole swept span per open (begin() only calibrates mesh_freq +/-4 MHz,
not the +/-12 span the old comment claimed), mesh cal restored exactly
on close; sweep clamps corrected to the driver-enforced 150-960 MHz on
BOTH driver families and a failed retune now skips the bin instead of
mis-attributing the previous bin's RSSI; failed-read 0 dBm sentinel no
longer wins the peak-hold (one SPI hiccup squashed the auto-scaled
trace for ~30 s); config block enters standby first; opening Spectrum
mid-TX now waits (bounded, dispatcher's own airtime budget, 6 s cap)
for the packet to finish instead of truncating it on the air; stale
SX126x-era comments refreshed, dead gain readout removed, bin-pitch
vs RBW coverage (42%) documented as the deliberate trade-off it is.
On-device verification wanted: sweep timing (micros() log), mesh RX
sensitivity after a Spectrum session, mid-TX open completing the send.
All four touch envs compile clean.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
