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ew8bakandClaude Sonnet 4.6
1175e42516
- New ChannelStore.pas: TChannel record + JSON persistence (channels.json) - New ChannelsForm.pas: full channel editor (list + fields, pre-fills from current radio state) - CH button in RX block: left-click opens dropdown, right-click opens editor - Active channel: button highlights with channel name, deactivates on VFO move - ApplyChannel: auto-switches XVTR/HF band based on channel frequency; saves old band state before switching to prevent cache corruption - SaveCurrentBand: skip save when VFO > 61 MHz (prevents HF cache corruption from VHF channel application without XVTR) - DeactivateXvtr: save full XVTR state (was only saving LastFreq) - CTCSS/RPT from channel marked as auto: cleared automatically when tuning away from channel frequency; survives band switches via FXvtrSettings auto-flags - TXvtrEntry: add LastCTCSSAutoActive, LastFMRptAutoActive fields Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
80 lines
2.0 KiB
ObjectPascal
80 lines
2.0 KiB
ObjectPascal
unit FMRepeater;
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{ FM repeater offset helpers — constants, default offsets, auto-direction logic. }
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{$mode objfpc}{$H+}
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interface
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const
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RPT_NONE = 0;
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RPT_MINUS = 1;
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RPT_PLUS = 2;
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RPT_2M_BEGIN = 144000000.0;
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RPT_2M_END = 148000000.0;
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RPT_70CM_BEGIN = 430000000.0;
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RPT_70CM_END = 440000000.0;
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RPT_DEFAULT_2M = 600000.0; // 0.600 MHz
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RPT_DEFAULT_70CM = 7600000.0; // 7.600 MHz
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// European 2m repeater input segment: auto-enable minus direction
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RPT_AUTO_MINUS_LO = 145600000.0; // 145.600 MHz
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RPT_AUTO_MINUS_HI = 145787500.0; // 145.7875 MHz
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{ Returns default offset (Hz) for the given visible frequency.
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70 cm band → 7.600 MHz; everything else → 0.600 MHz. }
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function RptDefaultOffsetHz(FreqHz: Double): Double;
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{ Returns RPT_MINUS when FreqHz falls in the 2 m auto-minus segment,
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RPT_NONE otherwise. }
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function RptAutoDir(FreqHz: Double): Integer;
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{ Formats OffsetHz as MHz with 3 decimal places, e.g. "0.600". }
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function RptFormatOffset(OffsetHz: Double): string;
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{ Parses a MHz string ("0.600", "7.6", "7,600") to Hz.
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Returns 0 on parse error or out-of-range value. }
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function RptParseOffset(const S: string): Double;
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implementation
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uses SysUtils;
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function RptDefaultOffsetHz(FreqHz: Double): Double;
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begin
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if (FreqHz >= RPT_70CM_BEGIN) and (FreqHz <= RPT_70CM_END) then
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Result := RPT_DEFAULT_70CM
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else
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Result := RPT_DEFAULT_2M;
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end;
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function RptAutoDir(FreqHz: Double): Integer;
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begin
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if (FreqHz >= RPT_AUTO_MINUS_LO) and (FreqHz <= RPT_AUTO_MINUS_HI) then
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Result := RPT_MINUS
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else
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Result := RPT_NONE;
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end;
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function RptFormatOffset(OffsetHz: Double): string;
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begin
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Result := Format('%.3f', [OffsetHz / 1000000.0]);
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end;
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function RptParseOffset(const S: string): Double;
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var
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V: Double;
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Code: Integer;
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Norm: string;
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begin
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Norm := StringReplace(Trim(S), ',', '.', [rfReplaceAll]);
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Val(Norm, V, Code);
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if (Code = 0) and (V > 0.0) and (V <= 100.0) then
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Result := V * 1000000.0
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else
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Result := 0.0;
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end;
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end.
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