add /freq command - allows lookup of data regarding ham bands for region-specific details
This commit is contained in:
+96
-62
@@ -37,22 +37,105 @@ INSERT INTO license_classes (id, country, code, name, rank, notes) VALUES
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-- US band segments (47 CFR Part 97)
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--
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-- VERIFY BEFORE SHIPPING. Hand-entered from the Part 97 privilege tables.
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-- Wrong edges or wrong privileges can put an operator outside their licence.
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--
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-- Two shapes are used here, deliberately:
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--
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-- 1. Bands where every eligible class gets the SAME range are generated with
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-- INSERT..SELECT over license_classes and a rank threshold. The rule is
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-- stated once, in the WHERE clause, and the rows follow from it.
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--
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-- 2. Bands where classes get GENUINELY DIFFERENT ranges (most of HF: Extra
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-- has 14.000-14.150 where General has 14.025-14.150) are written out
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-- explicitly, one row per class. A rank threshold cannot express that.
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--
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-- Shape 1 exists because hand-enumerating six bands times five classes is
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-- thirty near-identical rows, and the first version of this file missed several
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-- of them - Advanced was absent from 2200m, 630m and 60m entirely, and VHF/UHF
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-- was seeded for Technician only, so an Extra was told they had no 2m access.
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-- audit.py's privilege-nesting check catches that class of mistake now, but not
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-- making it is better.
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-- ---------------------------------------------------------------------------
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-- 2200m and 630m: all classes, strict EIRP limits, notification required
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(1, 'US', 1, 135700, 137800, 'CW,DATA', NULL, '1 W EIRP maximum'),
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(1, 'US', 3, 135700, 137800, 'CW,DATA', NULL, '1 W EIRP maximum'),
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(1, 'US', 4, 135700, 137800, 'CW,DATA', NULL, '1 W EIRP maximum'),
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(2, 'US', 1, 472000, 479000, 'CW,DATA', NULL, '5 W EIRP maximum'),
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(2, 'US', 3, 472000, 479000, 'CW,DATA', NULL, '5 W EIRP maximum'),
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(2, 'US', 4, 472000, 479000, 'CW,DATA', NULL, '5 W EIRP maximum');
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-- 2200m and 630m: all classes. Strict EIRP limits, and the operator must notify
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-- UTC and await a response before transmitting.
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-- VERIFY: whether Novice holds these is the part I am least sure of.
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes)
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SELECT v.band_id, 'US', lc.id, v.low_hz, v.high_hz, v.modes, v.max_power_w, v.notes
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FROM license_classes lc
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JOIN (
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SELECT 1 AS band_id, 135700 AS low_hz, 137800 AS high_hz,
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'CW,DATA' AS modes, NULL AS max_power_w, '1 W EIRP maximum' AS notes
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UNION SELECT 2, 472000, 479000, 'CW,DATA', NULL, '5 W EIRP maximum'
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) v
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WHERE lc.country = 'US';
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-- 160m: General and above, full band
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(3, 'US', 1, 1800000, 2000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL),
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(3, 'US', 2, 1800000, 2000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL),
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(3, 'US', 3, 1800000, 2000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL);
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-- 160m, 30m, 17m, 12m: General and above (rank >= 30), whole band, same for all.
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes)
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SELECT v.band_id, 'US', lc.id, v.low_hz, v.high_hz, v.modes, v.max_power_w, v.notes
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FROM license_classes lc
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JOIN (
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SELECT 3 AS band_id, 1800000 AS low_hz, 2000000 AS high_hz,
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'CW,DATA,PHONE,IMAGE' AS modes, NULL AS max_power_w, NULL AS notes
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UNION SELECT 7, 10100000, 10150000, 'CW,DATA', 200, 'No phone or image permitted'
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UNION SELECT 9, 18068000, 18110000, 'CW,DATA', NULL, NULL
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UNION SELECT 9, 18110000, 18168000, 'PHONE,IMAGE', NULL, NULL
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UNION SELECT 11, 24890000, 24930000, 'CW,DATA', NULL, NULL
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UNION SELECT 11, 24930000, 24990000, 'PHONE,IMAGE', NULL, NULL
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) v
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WHERE lc.country = 'US' AND lc.rank >= 30;
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-- 60m: five discrete channels, General and above. Stored as channel-width
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-- ranges; the USB dial frequency is the channel centre minus 1.5 kHz.
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes)
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SELECT 5, 'US', lc.id, v.low_hz, v.high_hz, 'CW,DATA,PHONE', NULL, v.notes
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FROM license_classes lc
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JOIN (
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SELECT 5330500 AS low_hz, 5333300 AS high_hz, 'Channel 1, 100 W ERP, USB' AS notes
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UNION SELECT 5346500, 5349300, 'Channel 2, 100 W ERP, USB'
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UNION SELECT 5357000, 5359800, 'Channel 3, 100 W ERP, USB'
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UNION SELECT 5371500, 5374300, 'Channel 4, 100 W ERP, USB'
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UNION SELECT 5403500, 5406300, 'Channel 5, 100 W ERP, USB'
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) v
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WHERE lc.country = 'US' AND lc.rank >= 30;
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-- VHF/UHF and above: Technician and higher (rank >= 20) hold the full
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-- allocation. There is no per-class variation above 50 MHz except for Novice.
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes)
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SELECT v.band_id, 'US', lc.id, v.low_hz, v.high_hz, v.modes, v.max_power_w, v.notes
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FROM license_classes lc
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JOIN (
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SELECT 13 AS band_id, 50000000 AS low_hz, 50100000 AS high_hz,
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'CW' AS modes, NULL AS max_power_w, 'CW only below 50.1 MHz' AS notes
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UNION SELECT 13, 50100000, 54000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL
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UNION SELECT 14, 144000000, 144100000, 'CW', NULL, 'CW only below 144.1 MHz'
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UNION SELECT 14, 144100000, 148000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL
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UNION SELECT 15, 222000000, 225000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL
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UNION SELECT 16, 420000000, 450000000, 'CW,DATA,PHONE,IMAGE', NULL,
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'Geographic restrictions apply near some radar sites'
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UNION SELECT 17, 902000000, 928000000, 'CW,DATA,PHONE,IMAGE', NULL,
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'Secondary allocation, shared with Part 15 devices'
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UNION SELECT 18, 1240000000, 1300000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL
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) v
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WHERE lc.country = 'US' AND lc.rank >= 20;
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-- Novice above 50 MHz: two reduced-power slices and nothing else.
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-- VERIFY: Novice licences have not been issued since 2000, so an error here
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-- would go unnoticed for years.
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes)
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SELECT v.band_id, 'US', lc.id, v.low_hz, v.high_hz, 'CW,DATA,PHONE,IMAGE', v.max_power_w,
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'Novice segment, reduced power'
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FROM license_classes lc
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JOIN (
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SELECT 15 AS band_id, 222000000 AS low_hz, 225000000 AS high_hz, 25 AS max_power_w
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UNION SELECT 18, 1270000000, 1295000000, 5
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) v
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WHERE lc.country = 'US' AND lc.code = 'N';
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-- ---------------------------------------------------------------------------
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-- Bands where classes get genuinely different ranges. Written out explicitly:
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-- a rank threshold cannot express "Extra from 3.500, General from 3.525".
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-- ---------------------------------------------------------------------------
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-- 80m / 75m
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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@@ -65,20 +148,6 @@ INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, m
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(4, 'US', 4, 3525000, 3600000, 'CW', 200, 'CW only'),
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(4, 'US', 5, 3525000, 3600000, 'CW', 200, 'CW only');
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-- 60m: five discrete channels, General and above.
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-- Stored as channel-width ranges; centre frequency is the USB dial + 1.5 kHz.
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(5, 'US', 1, 5330500, 5333300, 'CW,DATA,PHONE', NULL, 'Channel 1, 100 W ERP, USB'),
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(5, 'US', 1, 5346500, 5349300, 'CW,DATA,PHONE', NULL, 'Channel 2, 100 W ERP, USB'),
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(5, 'US', 1, 5357000, 5359800, 'CW,DATA,PHONE', NULL, 'Channel 3, 100 W ERP, USB'),
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(5, 'US', 1, 5371500, 5374300, 'CW,DATA,PHONE', NULL, 'Channel 4, 100 W ERP, USB'),
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(5, 'US', 1, 5403500, 5406300, 'CW,DATA,PHONE', NULL, 'Channel 5, 100 W ERP, USB'),
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(5, 'US', 3, 5330500, 5333300, 'CW,DATA,PHONE', NULL, 'Channel 1, 100 W ERP, USB'),
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(5, 'US', 3, 5346500, 5349300, 'CW,DATA,PHONE', NULL, 'Channel 2, 100 W ERP, USB'),
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(5, 'US', 3, 5357000, 5359800, 'CW,DATA,PHONE', NULL, 'Channel 3, 100 W ERP, USB'),
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(5, 'US', 3, 5371500, 5374300, 'CW,DATA,PHONE', NULL, 'Channel 4, 100 W ERP, USB'),
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(5, 'US', 3, 5403500, 5406300, 'CW,DATA,PHONE', NULL, 'Channel 5, 100 W ERP, USB');
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-- 40m
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(6, 'US', 1, 7000000, 7125000, 'CW,DATA', NULL, NULL),
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@@ -90,12 +159,6 @@ INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, m
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(6, 'US', 4, 7025000, 7125000, 'CW', 200, 'CW only'),
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(6, 'US', 5, 7025000, 7125000, 'CW', 200, 'CW only');
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-- 30m: no phone or image anywhere, 200 W limit
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(7, 'US', 1, 10100000, 10150000, 'CW,DATA', 200, 'No phone or image permitted'),
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(7, 'US', 2, 10100000, 10150000, 'CW,DATA', 200, 'No phone or image permitted'),
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(7, 'US', 3, 10100000, 10150000, 'CW,DATA', 200, 'No phone or image permitted');
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-- 20m
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(8, 'US', 1, 14000000, 14150000, 'CW,DATA', NULL, NULL),
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@@ -105,15 +168,6 @@ INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, m
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(8, 'US', 3, 14025000, 14150000, 'CW,DATA', NULL, NULL),
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(8, 'US', 3, 14225000, 14350000, 'PHONE,IMAGE', NULL, NULL);
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-- 17m
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(9, 'US', 1, 18068000, 18110000, 'CW,DATA', NULL, NULL),
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(9, 'US', 1, 18110000, 18168000, 'PHONE,IMAGE', NULL, NULL),
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(9, 'US', 2, 18068000, 18110000, 'CW,DATA', NULL, NULL),
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(9, 'US', 2, 18110000, 18168000, 'PHONE,IMAGE', NULL, NULL),
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(9, 'US', 3, 18068000, 18110000, 'CW,DATA', NULL, NULL),
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(9, 'US', 3, 18110000, 18168000, 'PHONE,IMAGE', NULL, NULL);
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-- 15m
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(10, 'US', 1, 21000000, 21200000, 'CW,DATA', NULL, NULL),
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@@ -125,15 +179,6 @@ INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, m
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(10, 'US', 4, 21025000, 21200000, 'CW', 200, 'CW only'),
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(10, 'US', 5, 21025000, 21200000, 'CW', 200, 'CW only');
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-- 12m
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(11, 'US', 1, 24890000, 24930000, 'CW,DATA', NULL, NULL),
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(11, 'US', 1, 24930000, 24990000, 'PHONE,IMAGE', NULL, NULL),
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(11, 'US', 2, 24890000, 24930000, 'CW,DATA', NULL, NULL),
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(11, 'US', 2, 24930000, 24990000, 'PHONE,IMAGE', NULL, NULL),
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(11, 'US', 3, 24890000, 24930000, 'CW,DATA', NULL, NULL),
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(11, 'US', 3, 24930000, 24990000, 'PHONE,IMAGE', NULL, NULL);
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-- 10m: the only HF band with Technician phone privileges
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(12, 'US', 1, 28000000, 28300000, 'CW,DATA', NULL, NULL),
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@@ -147,17 +192,6 @@ INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, m
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(12, 'US', 5, 28100000, 28300000, 'CW,DATA', 200, NULL),
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(12, 'US', 5, 28300000, 28500000, 'PHONE', 200, NULL);
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-- VHF/UHF and above: Technician and higher, full allocations
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INSERT INTO band_segments (band_id, country, class_id, low_hz, high_hz, modes, max_power_w, notes) VALUES
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(13, 'US', 4, 50000000, 50100000, 'CW', NULL, 'CW only below 50.1 MHz'),
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(13, 'US', 4, 50100000, 54000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL),
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(14, 'US', 4, 144000000, 144100000, 'CW', NULL, 'CW only below 144.1 MHz'),
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(14, 'US', 4, 144100000, 148000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL),
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(15, 'US', 4, 222000000, 225000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL),
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(16, 'US', 4, 420000000, 450000000, 'CW,DATA,PHONE,IMAGE', NULL, 'Geographic restrictions apply near some radar sites'),
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(17, 'US', 4, 902000000, 928000000, 'CW,DATA,PHONE,IMAGE', NULL, 'Secondary allocation, shared with Part 15 devices'),
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(18, 'US', 4, 1240000000, 1300000000, 'CW,DATA,PHONE,IMAGE', NULL, NULL);
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-- ---------------------------------------------------------------------------
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-- IARU allocation extents (class_id NULL = the allocation, not privileges)
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-- Partial. Enough to answer "is 7.250 legal here" for Region 1 vs 2.
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@@ -186,6 +186,40 @@ def check_domain(db, verbose):
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elif verbose:
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print(" band_segments no overlaps".ljust(66) + "ok")
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# Privilege nesting. In most licensing regimes a higher class holds a
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# superset of a lower one, so a segment that a junior class has and a
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# senior class does not is nearly always a missing row rather than a
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# real rule. This is exactly the shape of bug that reads as plausible
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# output - "Extra: not permitted on 2m" looks like data, not an error.
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#
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# A warning, not a failure: the superset assumption is true of the US
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# and most countries, but it is an assumption, and a contributed band
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# plan could legitimately break it.
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rows = db.execute("""
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SELECT DISTINCT hi.code, lo.code, b.name, s.low_hz, s.high_hz
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FROM band_segments s
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JOIN license_classes lo ON lo.id = s.class_id
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JOIN license_classes hi ON hi.country = lo.country AND hi.rank > lo.rank
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JOIN bands b ON b.id = s.band_id
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WHERE s.country = lo.country
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AND NOT EXISTS (
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SELECT 1 FROM band_segments t
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WHERE t.country = s.country
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AND t.class_id = hi.id
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AND t.low_hz <= s.low_hz
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AND s.high_hz <= t.high_hz)
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ORDER BY b.name, hi.rank DESC""").fetchall()
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if rows:
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for r in rows[:8]:
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warn("band_segments",
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f"{r[0]} lacks {r[2]} {r[3]/1e6:.3f}-{r[4]/1e6:.3f} MHz "
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f"that {r[1]} holds - missing row?")
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if len(rows) > 8:
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warn("band_segments", f"...and {len(rows) - 8} more nesting gaps")
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elif verbose:
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print(" band_segments privileges nest by rank".ljust(66) + "ok")
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if "ncdxf_beacons" in present:
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slots = [r[0] for r in db.execute("SELECT slot_index FROM ncdxf_beacons ORDER BY slot_index")]
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if slots != list(range(18)):
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