diff --git a/404.html b/404.html
index e8d97006..96f967cd 100644
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@@ -679,6 +679,33 @@
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+ Double center-frequency write: V4 transmitter / XIAO receiver
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@@ -868,6 +895,60 @@
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+ Four fixed transmitters: longer dwell repeats
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+ Four fixed transmitters / fast single-pass receiver
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@@ -1219,6 +1300,33 @@
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+ Equal-symbol-time mixed SF/BW, four-channel test
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@@ -1570,6 +1678,60 @@
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+ SF7/62.5 + SF8/500: 4.6 slow chirps, 0.3 ms reserve
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+ SF7/62.5 + SF8/500, fast switching and preamble 32
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@@ -1678,6 +1840,33 @@
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+ Shared radio/radio2 chirp timing and preamble warnings
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+ ESP32-S3 OTA memory experiment
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+ Separated radios, normal XIAO RX gain, and unchanged-modulation timing
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+ SF10/125 full samples: 10 Hz versus 100 Hz first-pass detour
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+ SF10/125: tiny first-pass frequency offset and coding-rate detour
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+ SF10/125: apply the full radio settings twice per hop
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+ SF10 / 125 kHz, XIAO nRF52 TX, double write, 1 ms delay grid
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+ SF10/125 rollback and wider-spacing failure isolation
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+ Descending SF10..SF5 / 125 kHz settling limits
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+ SF5 / 250 kHz: four-channel dwell sweep
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+ SF6/125 four-channel post-switch settling sweep
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@@ -2119,10 +2578,10 @@
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