200 kHz OOK RF Link Design - PRICE will very as per Deliverables can be from your side.
Budget: ₹40,000 – ₹250,000 INR
I need a matched transmitter-receiver pair built around a 200 kHz carrier that can cover at least 40 m in open air and recognise simple OOK (On-Off Keying) pulses reliably. The intended application is “Radio Frequency RF”, so there is no higher-level protocol to worry about; raw, clean carrier switching will do the job. Everything will be mounted and operated outdoors, so the design must tolerate ambient temperature swings, sunlight and occasional moisture without detuning or loss of sensitivity. Both TX and Rx are separate not transceiver and battery powered with minimum 2 days running time.
What I am looking for
• Circuit-level design of both the low-power transmitter and the super-regen/ super-het (designer’s choice) receiver, including complete schematics, PCB layouts and a concise Bill of Materials with part numbers that are actually in stock.
• Component selection that keeps cost sensible while ensuring the 40 m range with small whip antennas (no dishes or large loops).
• Firmware or microcontroller snippets, if any, that demonstrate clean OOK pulse generation on the TX side and pulse detection / decoding on the RX side (GPIO-level output is fine).
• A short tuning and test guide so I can replicate your bench setup and verify range, sensitivity and stability at my end.
Acceptance will be based on:
1. Verified 200 kHz carrier (±1 kHz) shown on a frequency counter or spectrum snapshot you provide.
2. Minimum 40 m line-of-sight operation outdoors with 0.1 ms–10 ms OOK pulses detected error-free.
3. All design files delivered in native formats (KiCad preferred, Gerber/STEP acceptable) plus a brief build log.
If you have prior low-frequency RF experience and can turn around a repeatable design quickly, I’m ready to start right away and will be responsive to questions.
What I am looking for
• Circuit-level design of both the low-power transmitter and the super-regen/ super-het (designer’s choice) receiver, including complete schematics, PCB layouts and a concise Bill of Materials with part numbers that are actually in stock.
• Component selection that keeps cost sensible while ensuring the 40 m range with small whip antennas (no dishes or large loops).
• Firmware or microcontroller snippets, if any, that demonstrate clean OOK pulse generation on the TX side and pulse detection / decoding on the RX side (GPIO-level output is fine).
• A short tuning and test guide so I can replicate your bench setup and verify range, sensitivity and stability at my end.
Acceptance will be based on:
1. Verified 200 kHz carrier (±1 kHz) shown on a frequency counter or spectrum snapshot you provide.
2. Minimum 40 m line-of-sight operation outdoors with 0.1 ms–10 ms OOK pulses detected error-free.
3. All design files delivered in native formats (KiCad preferred, Gerber/STEP acceptable) plus a brief build log.
If you have prior low-frequency RF experience and can turn around a repeatable design quickly, I’m ready to start right away and will be responsive to questions.