Detector

Introduction

The Detector app is based on the Level app and allow you to get quick signal detection on Lora, Remotes, Tetra UP. It will loop as quickly as possible, and if a frequency match the threshold, it will produce a beep.

Controls (on the top of the app)

First line:

• LNA,VGA,AMP,Volume: adjust with rotary encode. Volume is the beep volume.

Second line:

• Preset selection.

Third line:

• Bip: rotary encoder adjustable threshold for level detection.

Preset details

Remotes

    // Around 315 MHz (common for older remotes, key fobs in some regions)
    // Window centered on 315 MHz, covers 314.625 - 315.375 MHz
    315000000,
    // Around 433.92 MHz (very common for remotes, sensors, key fobs globally)
    // Window centered on 433.92 MHz, covers 433.545 - 434.295 MHz
    433920000,

Lora

    // EU433 Band (Europe, typically 433.05 MHz to 434.79 MHz)
    // Scanning the approximate range 433.0 MHz to 434.8 MHz with 750kHz steps
    433375000,  // Covers 433.000 - 433.750 MHz
    434125000,  // Covers 433.750 - 434.500 MHz (includes 433.92 MHz)
    434875000,  // Covers 434.500 - 435.250 MHz (covers up to 434.79 MHz)
    // EU868 Band (Europe, typically 863 MHz to 870 MHz, specific channels around 868 MHz)
    // Targeting common LoRaWAN channel groups (approx 867.0 - 868.6 MHz) with 750kHz steps
    867375000,  // Covers 867.000 - 867.750 MHz
    868125000,  // Covers 867.750 - 868.500 MHz
    868875000,  // Covers 868.500 - 869.250 MHz (covers up to 868.6 MHz)
    // US915 Band (North America, typically 902 MHz to 928 MHz, specific channels around 915 MHz)
    // Providing a few sample windows around the 915 MHz area with 750kHz steps.
    // This band is wide; a full scan would require many more frequencies.
    914250000,  // Covers 913.875 - 914.625 MHz
    915000000,  // Covers 914.625 - 915.375 MHz (Centered on 915 MHz)
    915750000,  // Covers 915.375 - 916.125 MHz

Tetra UP

    // Band starts at 380,000,000 Hz, ends at 390,000,000 Hz.
    // First center: 380,000,000 + 375,000 = 380,375,000 Hz
    // Last center:  380,375,000 + 13 * 750,000 = 390,125,000 Hz (14 frequencies total for this band)
    380375000,  // Covers 380.000 - 380.750 MHz
    381125000,  // Covers 380.750 - 381.500 MHz
    381875000,  // Covers 381.500 - 382.250 MHz
    382625000,  // Covers 382.250 - 383.000 MHz
    383375000,  // Covers 383.000 - 383.750 MHz
    384125000,  // Covers 383.750 - 384.500 MHz
    384875000,  // Covers 384.500 - 385.250 MHz
    385625000,  // Covers 385.250 - 386.000 MHz
    386375000,  // Covers 386.000 - 386.750 MHz
    387125000,  // Covers 386.750 - 387.500 MHz
    387875000,  // Covers 387.500 - 388.250 MHz
    388625000,  // Covers 388.250 - 389.000 MHz
    389375000,  // Covers 389.000 - 389.750 MHz
    390125000,  // Covers 389.750 - 390.500 MHz