Graham McIntire
36adf875b7
Expands submittable-contact bands to include 6m, 2m, 1.25m, and 70cm (as 432 rather than the old 440 placeholder). Each new band gets an explicit allocation window in BandResolver.nearest_band so ADIF FREQ fields near the amateur allocations resolve correctly while 60-900 MHz frequencies outside those windows are still rejected. Microwave (>= 900 MHz) snapping is unchanged — nearest-band match across the full @allowed_bands list. Also adds BandConfig entries for 50 and 222 (tropo-only config, same pattern as 144/432). Sporadic-E / F2 / meteor scatter modeling is not yet in scope — ionosphere data is only used to compute an Es readout on /path for 50/144/222/432.
770 lines
18 KiB
Elixir
770 lines
18 KiB
Elixir
defmodule Microwaveprop.Propagation.BandConfig do
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@moduledoc """
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Data-driven band configuration for the propagation scoring algorithm.
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This is the single source of truth for all scoring parameters: weights,
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thresholds, seasonal tables, and band-specific coefficients. When the
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algorithm is tuned or new bands are added, only this module changes.
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"""
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# Recalibrated 2026-04-11 via gradient descent on 5000 QSOs (loss 0.42 → 0.12).
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# Key shifts: rain +70%, season +39%, wind +60%; time_of_day -50%, pressure -31%.
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@weights %{
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humidity: 0.1243,
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time_of_day: 0.0496,
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td_depression: 0.0978,
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refractivity: 0.1049,
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sky: 0.08,
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season: 0.1112,
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wind: 0.08,
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rain: 0.1362,
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pressure: 0.1032,
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pwat: 0.1128
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}
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@sunrise_table [7.4, 7.3, 7.0, 6.7, 6.35, 6.25, 6.35, 6.65, 6.9, 7.1, 7.35, 7.45]
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@tiers [
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%{min_score: 80, label: "EXCELLENT", color: "#059669"},
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%{min_score: 65, label: "GOOD", color: "#0d9488"},
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%{min_score: 50, label: "MARGINAL", color: "#ca8a04"},
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%{min_score: 33, label: "POOR", color: "#ea580c"},
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%{min_score: 0, label: "NEGLIGIBLE", color: "#dc2626"}
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]
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@humidity_beneficial_thresholds [{4, 55}, {7, 70}, {10, 82}, {14, 90}, {18, 95}, {22, 88}]
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@humidity_beneficial_default 75
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# Thresholds calibrated for HRRR-derived gradients (coarser than sounding data).
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# HRRR percentiles: p1=-230, p5=-162, p10=-130, p25=-94, p50=-70, p75=-53, p95=-40
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@refractivity_thresholds [
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{-200, 98, 85},
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{-150, 92, 80},
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{-100, 82, 72},
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{-75, 68, 62},
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{-55, 55, 55},
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{-40, 48, 48}
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]
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@refractivity_default {42, 42}
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@band_configs %{
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# VHF / UHF bands share the tropo-ducting physics of low microwave
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# (humidity and refractivity gradient build ducts the same way),
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# so rain attenuation and gas absorption are effectively zero and
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# humidity is :beneficial. The difference from 902+ is mostly in
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# the achievable range — a 2m duct can reach 2500+ km under
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# exceptional conditions (e.g. documented Hawaii ↔ California
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# openings). These do NOT capture sporadic-E, F2, or meteor scatter,
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# which need ionospheric data we don't yet ingest. 6m is especially
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# affected — most 6m DX is via Es / F2, not tropo.
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50 => %{
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freq_mhz: 50,
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label: "50 MHz",
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o2_db_km: 0.0,
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h2o_coeff: 0.0,
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humidity_effect: :beneficial,
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humidity_penalty: 0.0,
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rain_k: 0.0,
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rain_alpha: 1.0,
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seasonal_base: %{
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1 => 30,
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2 => 32,
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3 => 25,
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4 => 50,
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5 => 70,
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6 => 95,
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7 => 95,
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8 => 70,
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9 => 65,
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10 => 70,
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11 => 60,
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12 => 25
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},
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seasonal_adj: %{},
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typical_range_km: 400,
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extended_range_km: 1500,
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exceptional_range_km: 4000
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},
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144 => %{
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freq_mhz: 144,
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label: "144 MHz",
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o2_db_km: 0.0,
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h2o_coeff: 0.0,
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humidity_effect: :beneficial,
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humidity_penalty: 0.0,
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rain_k: 0.0,
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rain_alpha: 1.0,
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seasonal_base: %{
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1 => 38,
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2 => 40,
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3 => 22,
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4 => 55,
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5 => 68,
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6 => 90,
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7 => 95,
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8 => 75,
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9 => 78,
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10 => 88,
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11 => 78,
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12 => 25
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},
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seasonal_adj: %{},
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typical_range_km: 350,
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extended_range_km: 900,
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exceptional_range_km: 2500
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},
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222 => %{
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freq_mhz: 222,
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label: "222 MHz",
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o2_db_km: 0.0,
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h2o_coeff: 0.0,
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humidity_effect: :beneficial,
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humidity_penalty: 0.0,
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rain_k: 0.0,
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rain_alpha: 1.0,
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seasonal_base: %{
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1 => 38,
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2 => 40,
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3 => 22,
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4 => 55,
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5 => 68,
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6 => 90,
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7 => 95,
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8 => 75,
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9 => 78,
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10 => 88,
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11 => 78,
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12 => 25
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},
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seasonal_adj: %{},
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typical_range_km: 320,
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extended_range_km: 800,
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exceptional_range_km: 2000
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},
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432 => %{
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freq_mhz: 432,
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label: "432 MHz",
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o2_db_km: 0.0,
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h2o_coeff: 0.0,
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humidity_effect: :beneficial,
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humidity_penalty: 0.0,
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rain_k: 0.0,
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rain_alpha: 1.0,
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seasonal_base: %{
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1 => 38,
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2 => 40,
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3 => 22,
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4 => 55,
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5 => 68,
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6 => 90,
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7 => 95,
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8 => 75,
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9 => 78,
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10 => 88,
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11 => 78,
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12 => 25
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},
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seasonal_adj: %{},
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typical_range_km: 300,
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extended_range_km: 700,
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exceptional_range_km: 1800
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},
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902 => %{
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freq_mhz: 902,
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label: "902 MHz",
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o2_db_km: 0.006,
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h2o_coeff: 0.0,
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humidity_effect: :beneficial,
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humidity_penalty: 0.0,
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rain_k: 0.000,
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rain_alpha: 1.0,
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seasonal_base: %{
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1 => 38,
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2 => 40,
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3 => 22,
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4 => 55,
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5 => 68,
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6 => 90,
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7 => 95,
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8 => 75,
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9 => 78,
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10 => 88,
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11 => 78,
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12 => 25
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},
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seasonal_adj: %{},
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typical_range_km: 400,
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extended_range_km: 800,
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exceptional_range_km: 1500
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},
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1_296 => %{
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freq_mhz: 1_296,
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label: "1296 MHz",
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o2_db_km: 0.006,
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h2o_coeff: 0.0,
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humidity_effect: :beneficial,
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humidity_penalty: 0.0,
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rain_k: 0.000,
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rain_alpha: 1.0,
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seasonal_base: %{
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1 => 38,
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2 => 40,
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3 => 22,
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4 => 55,
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5 => 68,
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6 => 90,
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7 => 95,
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8 => 75,
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9 => 78,
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10 => 88,
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11 => 78,
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12 => 25
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},
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seasonal_adj: %{},
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typical_range_km: 350,
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extended_range_km: 700,
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exceptional_range_km: 1200
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},
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2_304 => %{
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freq_mhz: 2_304,
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label: "2304 MHz",
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o2_db_km: 0.006,
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h2o_coeff: 0.0,
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humidity_effect: :beneficial,
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humidity_penalty: 0.0,
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rain_k: 0.001,
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rain_alpha: 1.15,
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seasonal_base: %{
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1 => 38,
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2 => 40,
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3 => 22,
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4 => 55,
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5 => 68,
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6 => 90,
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7 => 95,
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8 => 75,
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9 => 78,
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10 => 88,
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11 => 78,
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12 => 25
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},
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seasonal_adj: %{},
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typical_range_km: 300,
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extended_range_km: 600,
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exceptional_range_km: 1000
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},
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3_456 => %{
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freq_mhz: 3_456,
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label: "3456 MHz",
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o2_db_km: 0.006,
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h2o_coeff: 0.0,
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humidity_effect: :beneficial,
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humidity_penalty: 0.0,
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rain_k: 0.002,
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rain_alpha: 1.20,
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seasonal_base: %{
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1 => 38,
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2 => 40,
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3 => 22,
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4 => 55,
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5 => 68,
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6 => 90,
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7 => 95,
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8 => 75,
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9 => 78,
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10 => 88,
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11 => 78,
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12 => 25
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},
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seasonal_adj: %{},
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typical_range_km: 250,
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extended_range_km: 550,
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exceptional_range_km: 900
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},
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5_760 => %{
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freq_mhz: 5_760,
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label: "5760 MHz",
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o2_db_km: 0.007,
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h2o_coeff: 0.0,
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humidity_effect: :beneficial,
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humidity_penalty: 0.0,
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rain_k: 0.005,
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rain_alpha: 1.25,
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seasonal_base: %{
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1 => 38,
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2 => 40,
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3 => 22,
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4 => 55,
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5 => 68,
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6 => 90,
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7 => 95,
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8 => 75,
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9 => 78,
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10 => 88,
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11 => 78,
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12 => 25
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},
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seasonal_adj: %{},
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typical_range_km: 220,
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extended_range_km: 500,
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exceptional_range_km: 1000
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},
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10_000 => %{
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freq_mhz: 10_000,
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label: "10 GHz",
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o2_db_km: 0.007,
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h2o_coeff: 0.0,
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humidity_effect: :beneficial,
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humidity_penalty: 0.0,
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rain_k: 0.010,
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rain_alpha: 1.28,
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seasonal_base: %{
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1 => 38,
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2 => 40,
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3 => 22,
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4 => 55,
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5 => 68,
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6 => 90,
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7 => 95,
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8 => 75,
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9 => 78,
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10 => 88,
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11 => 78,
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12 => 25
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},
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seasonal_adj: %{},
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typical_range_km: 200,
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extended_range_km: 500,
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exceptional_range_km: 1000
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},
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24_000 => %{
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freq_mhz: 24_000,
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label: "24 GHz",
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o2_db_km: 0.02,
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h2o_coeff: 0.002,
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humidity_effect: :harmful,
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humidity_penalty: 1.6,
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rain_k: 0.070,
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rain_alpha: 1.07,
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seasonal_base: %{
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1 => 88,
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2 => 84,
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3 => 68,
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4 => 62,
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5 => 51,
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6 => 34,
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7 => 18,
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8 => 18,
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9 => 48,
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10 => 68,
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11 => 96,
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12 => 88
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},
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seasonal_adj: %{5 => -4, 6 => -8, 7 => -10, 8 => -10, 9 => -4},
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typical_range_km: 100,
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extended_range_km: 250,
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exceptional_range_km: 500
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},
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47_000 => %{
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freq_mhz: 47_000,
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label: "47 GHz",
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o2_db_km: 0.04,
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h2o_coeff: 0.003,
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humidity_effect: :harmful,
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humidity_penalty: 1.0,
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rain_k: 0.187,
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rain_alpha: 0.93,
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seasonal_base: %{
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1 => 90,
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2 => 88,
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3 => 78,
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4 => 68,
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5 => 55,
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6 => 38,
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7 => 22,
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8 => 22,
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9 => 48,
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10 => 74,
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11 => 96,
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12 => 90
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},
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seasonal_adj: %{},
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typical_range_km: 70,
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extended_range_km: 150,
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exceptional_range_km: 300
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},
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68_000 => %{
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freq_mhz: 68_000,
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label: "68 GHz",
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o2_db_km: 0.90,
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h2o_coeff: 0.007,
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humidity_effect: :harmful,
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humidity_penalty: 1.4,
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rain_k: 0.310,
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rain_alpha: 0.86,
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seasonal_base: %{
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1 => 90,
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2 => 88,
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3 => 78,
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4 => 65,
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5 => 50,
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6 => 32,
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7 => 18,
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8 => 18,
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9 => 44,
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10 => 70,
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11 => 92,
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12 => 90
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},
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seasonal_adj: %{},
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typical_range_km: 40,
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extended_range_km: 80,
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exceptional_range_km: 150
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},
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75_000 => %{
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freq_mhz: 75_000,
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label: "75 GHz",
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o2_db_km: 0.012,
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h2o_coeff: 0.006,
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humidity_effect: :harmful,
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humidity_penalty: 1.2,
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rain_k: 0.345,
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rain_alpha: 0.84,
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seasonal_base: %{
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1 => 90,
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2 => 90,
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3 => 80,
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4 => 68,
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5 => 55,
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6 => 38,
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7 => 22,
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8 => 22,
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9 => 48,
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10 => 74,
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11 => 96,
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12 => 90
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},
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seasonal_adj: %{},
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typical_range_km: 50,
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extended_range_km: 120,
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exceptional_range_km: 250
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},
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122_000 => %{
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freq_mhz: 122_000,
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label: "122 GHz",
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o2_db_km: 0.80,
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h2o_coeff: 0.010,
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humidity_effect: :harmful,
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humidity_penalty: 1.0,
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rain_k: 0.498,
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rain_alpha: 0.77,
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seasonal_base: %{
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1 => 92,
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2 => 90,
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3 => 78,
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4 => 62,
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5 => 45,
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6 => 28,
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7 => 15,
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8 => 15,
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9 => 38,
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10 => 68,
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11 => 92,
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12 => 92
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},
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seasonal_adj: %{},
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typical_range_km: 30,
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extended_range_km: 80,
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exceptional_range_km: 140
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},
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134_000 => %{
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freq_mhz: 134_000,
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label: "134 GHz",
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o2_db_km: 0.08,
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h2o_coeff: 0.015,
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humidity_effect: :harmful,
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humidity_penalty: 1.3,
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rain_k: 0.520,
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rain_alpha: 0.75,
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seasonal_base: %{
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1 => 92,
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2 => 90,
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3 => 78,
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4 => 65,
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5 => 48,
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6 => 30,
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7 => 18,
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8 => 18,
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9 => 42,
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10 => 70,
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11 => 92,
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12 => 92
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},
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seasonal_adj: %{},
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typical_range_km: 40,
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extended_range_km: 100,
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exceptional_range_km: 160
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},
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# 142–145 GHz — between the 118 GHz O2 line and the 183 GHz H2O line.
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# Coefficients linearly interpolate between 134 GHz and 241 GHz; rain
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# tracks ITU-R P.838 in the K-band-extrapolated regime. Ranges scaled
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# from the handful of contacts in the corpus (n=4 at 142 GHz, n=2 at
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# 145 GHz) — these are scaffolding values and will need calibration as
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# the band sees more activity.
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142_000 => %{
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freq_mhz: 142_000,
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label: "142 GHz",
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o2_db_km: 0.05,
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h2o_coeff: 0.025,
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humidity_effect: :harmful,
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humidity_penalty: 1.4,
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rain_k: 0.530,
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rain_alpha: 0.74,
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seasonal_base: %{
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1 => 92,
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2 => 90,
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3 => 78,
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4 => 65,
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5 => 47,
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6 => 28,
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7 => 16,
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8 => 16,
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9 => 40,
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10 => 68,
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11 => 92,
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12 => 92
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},
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seasonal_adj: %{},
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typical_range_km: 35,
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extended_range_km: 80,
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exceptional_range_km: 160
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},
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145_000 => %{
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freq_mhz: 145_000,
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label: "145 GHz",
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o2_db_km: 0.06,
|
||
h2o_coeff: 0.040,
|
||
humidity_effect: :harmful,
|
||
humidity_penalty: 1.5,
|
||
rain_k: 0.535,
|
||
rain_alpha: 0.74,
|
||
seasonal_base: %{
|
||
1 => 92,
|
||
2 => 90,
|
||
3 => 78,
|
||
4 => 64,
|
||
5 => 46,
|
||
6 => 27,
|
||
7 => 15,
|
||
8 => 15,
|
||
9 => 38,
|
||
10 => 66,
|
||
11 => 92,
|
||
12 => 92
|
||
},
|
||
seasonal_adj: %{},
|
||
typical_range_km: 35,
|
||
extended_range_km: 80,
|
||
exceptional_range_km: 150
|
||
},
|
||
241_000 => %{
|
||
freq_mhz: 241_000,
|
||
label: "241 GHz",
|
||
o2_db_km: 0.08,
|
||
h2o_coeff: 0.30,
|
||
humidity_effect: :harmful,
|
||
humidity_penalty: 3.0,
|
||
rain_k: 0.550,
|
||
rain_alpha: 0.70,
|
||
seasonal_base: %{
|
||
1 => 95,
|
||
2 => 92,
|
||
3 => 75,
|
||
4 => 55,
|
||
5 => 35,
|
||
6 => 15,
|
||
7 => 8,
|
||
8 => 8,
|
||
9 => 30,
|
||
10 => 65,
|
||
11 => 95,
|
||
12 => 95
|
||
},
|
||
seasonal_adj: %{},
|
||
typical_range_km: 10,
|
||
extended_range_km: 50,
|
||
exceptional_range_km: 115
|
||
},
|
||
# Sub-mm bands (288–411 GHz) — extrapolated scaffolding so the scoring
|
||
# pipeline doesn't silently drop these contacts. The prod corpus has 1
|
||
# contact per band, all under 1.5 km (effectively LOS), so the absorption
|
||
# values dominate any duct-related score. Coefficients track ITU-R P.676/
|
||
# 838 trends past the 325 GHz H2O line; ranges are nominal.
|
||
288_000 => %{
|
||
freq_mhz: 288_000,
|
||
label: "288 GHz",
|
||
o2_db_km: 0.10,
|
||
h2o_coeff: 0.45,
|
||
humidity_effect: :harmful,
|
||
humidity_penalty: 3.5,
|
||
rain_k: 0.560,
|
||
rain_alpha: 0.68,
|
||
seasonal_base: %{
|
||
1 => 95,
|
||
2 => 92,
|
||
3 => 75,
|
||
4 => 55,
|
||
5 => 35,
|
||
6 => 14,
|
||
7 => 7,
|
||
8 => 7,
|
||
9 => 28,
|
||
10 => 64,
|
||
11 => 95,
|
||
12 => 95
|
||
},
|
||
seasonal_adj: %{},
|
||
typical_range_km: 5,
|
||
extended_range_km: 15,
|
||
exceptional_range_km: 50
|
||
},
|
||
322_000 => %{
|
||
freq_mhz: 322_000,
|
||
label: "322 GHz",
|
||
o2_db_km: 0.12,
|
||
h2o_coeff: 0.55,
|
||
humidity_effect: :harmful,
|
||
humidity_penalty: 4.0,
|
||
rain_k: 0.570,
|
||
rain_alpha: 0.66,
|
||
seasonal_base: %{
|
||
1 => 96,
|
||
2 => 92,
|
||
3 => 74,
|
||
4 => 52,
|
||
5 => 32,
|
||
6 => 12,
|
||
7 => 6,
|
||
8 => 6,
|
||
9 => 26,
|
||
10 => 62,
|
||
11 => 96,
|
||
12 => 96
|
||
},
|
||
seasonal_adj: %{},
|
||
typical_range_km: 5,
|
||
extended_range_km: 15,
|
||
exceptional_range_km: 40
|
||
},
|
||
403_000 => %{
|
||
freq_mhz: 403_000,
|
||
label: "403 GHz",
|
||
o2_db_km: 0.15,
|
||
h2o_coeff: 0.40,
|
||
humidity_effect: :harmful,
|
||
humidity_penalty: 3.0,
|
||
rain_k: 0.580,
|
||
rain_alpha: 0.64,
|
||
seasonal_base: %{
|
||
1 => 96,
|
||
2 => 92,
|
||
3 => 74,
|
||
4 => 52,
|
||
5 => 32,
|
||
6 => 12,
|
||
7 => 6,
|
||
8 => 6,
|
||
9 => 26,
|
||
10 => 62,
|
||
11 => 96,
|
||
12 => 96
|
||
},
|
||
seasonal_adj: %{},
|
||
typical_range_km: 3,
|
||
extended_range_km: 10,
|
||
exceptional_range_km: 30
|
||
},
|
||
411_000 => %{
|
||
freq_mhz: 411_000,
|
||
label: "411 GHz",
|
||
o2_db_km: 0.15,
|
||
h2o_coeff: 0.42,
|
||
humidity_effect: :harmful,
|
||
humidity_penalty: 3.2,
|
||
rain_k: 0.580,
|
||
rain_alpha: 0.64,
|
||
seasonal_base: %{
|
||
1 => 96,
|
||
2 => 92,
|
||
3 => 74,
|
||
4 => 52,
|
||
5 => 32,
|
||
6 => 12,
|
||
7 => 6,
|
||
8 => 6,
|
||
9 => 26,
|
||
10 => 62,
|
||
11 => 96,
|
||
12 => 96
|
||
},
|
||
seasonal_adj: %{},
|
||
typical_range_km: 3,
|
||
extended_range_km: 10,
|
||
exceptional_range_km: 30
|
||
}
|
||
}
|
||
|
||
@doc "Returns the band config for the given frequency in MHz, or nil if not found."
|
||
@spec get(integer()) :: map() | nil
|
||
def get(freq_mhz), do: Map.get(@band_configs, freq_mhz)
|
||
|
||
@doc "Returns all band configs sorted by frequency (ascending)."
|
||
@spec all_bands() :: [map()]
|
||
def all_bands do
|
||
@band_configs
|
||
|> Enum.sort_by(fn {freq, _config} -> freq end)
|
||
|> Enum.map(fn {_freq, config} -> config end)
|
||
end
|
||
|
||
@doc "Returns all supported frequencies sorted ascending."
|
||
@spec all_freqs() :: [integer()]
|
||
def all_freqs do
|
||
@band_configs
|
||
|> Map.keys()
|
||
|> Enum.sort()
|
||
end
|
||
|
||
@doc "Returns band options as {label, value_string} tuples for form dropdowns."
|
||
@spec band_options() :: [{String.t(), String.t()}]
|
||
def band_options do
|
||
Enum.map(all_bands(), fn band -> {band.label, to_string(band.freq_mhz)} end)
|
||
end
|
||
|
||
@doc "Returns the scoring weights map. All 10 values sum to 1.0."
|
||
@spec weights() :: map()
|
||
def weights, do: @weights
|
||
|
||
@doc "Returns the 12-element sunrise hour table (Jan-Dec, local time)."
|
||
@spec sunrise_table() :: [float()]
|
||
def sunrise_table, do: @sunrise_table
|
||
|
||
@doc "Returns score tier definitions ordered by threshold descending."
|
||
@spec tiers() :: [map()]
|
||
def tiers, do: @tiers
|
||
|
||
@doc "Returns humidity beneficial thresholds as {hour, score} tuples."
|
||
@spec humidity_beneficial_thresholds() :: [{integer(), integer()}]
|
||
def humidity_beneficial_thresholds, do: @humidity_beneficial_thresholds
|
||
|
||
@doc "Returns the default humidity beneficial score."
|
||
@spec humidity_beneficial_default() :: integer()
|
||
def humidity_beneficial_default, do: @humidity_beneficial_default
|
||
|
||
@doc "Returns refractivity thresholds as {gradient, score_beneficial, score_harmful} tuples."
|
||
@spec refractivity_thresholds() :: [{number(), number(), number()}]
|
||
def refractivity_thresholds, do: @refractivity_thresholds
|
||
|
||
@doc "Returns the default refractivity scores as {beneficial, harmful}."
|
||
@spec refractivity_default() :: {number(), number()}
|
||
def refractivity_default, do: @refractivity_default
|
||
end
|