[!WARNING] This application is intended solely for experimental purposes on equipment you own or have permission to test. You are responsible for complying with all applicable laws.

OOK TX transmits On-Off Keying signals using pre-defined encoder chip protocols. It is commonly used for testing remote controls, gate openers, and similar 315 MHz / 433.92 MHz OAM devices. The app has two tabs: Config (manual frame construction) and de Bruijn (automated code scanning).

Config Tab

• Type: Encoder chip protocol. 14 types are supported:

  Name	Chip	Address symbols	Data symbols	Word length	Default clk
  2260-R2	PT2260-R2	0, 1, F	0, 1	12	150 kHz
  2260-R4	PT2260-R4	0, 1, F	0, 1	12	150 kHz
  2262	PT2262	0, 1, F	0, 1, F	12	20 kHz
  16-bit	—	0, 1	0, 1	16	25 kHz
  1527	RT1527	0, 1	0, 1	24	100 kHz
  526E	HK526E	0, 1	0, 1	12	20 kHz
  12E	HT12E	0, 1	0, 1	12	3 kHz
  5026	VD5026	0, 1, 2, 3	0, 1, 2, 3	12	100 kHz
  UM3750	UM3750	0, 1	0, 1	12	100 kHz
  UM3758	UM3758	0, 1, F	0, 1	18	160 kHz
  BA5104	BA5104	0, 1	0, 1	9	455 kHz
  145026	MC145026	0, 1, F	0, 1	9	455 kHz
  HT6***	HT6xxx	0, 1, F	0, 1	18	80 kHz
  TC9148	TC9148	0, 1	0, 1	12	455 kHz

• Repeat (1–99): Minimum number of times the frame is repeated per transmission. Automatically set to the encoder's default when the type changes.

• Clk (1–1000 kHz): Encoder oscillator clock frequency. Changing this updates Frame automatically. Step size is set by the adjacent Step selector (1 / 10 / 100 kHz).

• Frame (300–99,999 µs): Frame duration in microseconds. Changing this updates Clk automatically. Step size is set by its adjacent Step selector (1 / 10 / 100 / 1000 µs). Clock and frame are interlinked: frame_µs = clk_period_µs × word_length.

• Symbols: The bit pattern to transmit. Each position corresponds to a symbol in the word format shown on the line below (A = Address, D = Data, S = Sync). Symbols are selectable per encoder type — for example 0, 1, and F (float) for tri-state encoders.

• Waveform: Live preview of the generated OOK waveform for the current symbol pattern.

• Progress bar / status: Shows repeat count (n/total) and transmission progress.

de Bruijn Tab

Transmits a de Bruijn sequence — a cyclic bit sequence that contains every possible n-bit combination exactly once. This is used to scan all possible codes for a given bit length without needing to enumerate them individually.

• Length (3–24 bits): The code word length n. A length-n de Bruijn sequence covers all 2ⁿ combinations.

• Bit length (two fields): The duration of each bit in microseconds, entered as tens + units (e.g. 40 + 0 = 400 µs per bit). Range: 10–889 µs.

Common Controls

• Frequency / Gain / AMP: Standard TX controls in the bottom bar. Default frequency: 433.920 MHz.
• Start / Stop: Begins or aborts transmission. When the de Bruijn tab is active, starts a scan; when the Config tab is active, transmits the configured frame.

Settings Persistence

Settings are saved to tx_ook.ini.