FAQ
TL;DR: 80 % of EU countries treat intentional signal jamming as a criminal offence [CEPT, 2021]; “there is no magic gadget” says RF engineer Dr. Klein [Klein, 2020]. Attempting to force ‘gurgling’ through walls risks fines and equipment damage.
Why it matters: Knowing the law and physics saves you money, sleep, and criminal records.
Quick Facts
• Poland’s Office of Electronic Communications can fine illegal jamming up to 200 000 PLN [UKE, 2022].
• GSM-900 bursts last 577 µs and create a 217 Hz buzz in nearby audio stages [ITU, 2020].
• WHO sets 40 dB(A) LAeq as the night limit for indoor noise [WHO, 2018].
• Typical household 50 Hz magnetic field ≈0.5 µT, far below speaker-interference levels [IEC 62226].
• A 12 mm N52 neodymium magnet produces >1.3 T at the pole face [K&J, 2021].
Can I deliberately make my neighbour’s speakers buzz like a mobile phone does?
Not practically. GSM buzz occurs only when the phone’s RF bursts couple into poorly filtered audio leads. Re-creating that through a masonry wall would need a high-power, out-of-band transmitter—illegal and likely ineffective [Elektroda, And!, #9379748].
Is any ‘sinusoidal bubbler’ or ‘speaker jammer’ a real product?
No. The names in the thread are jokes; no catalogue lists such devices. Staff confirmed the item is fictional [Elektroda, bmserwis, post #9377296]
Are RF jammers legal in Poland or the EU?
No. Operating or selling intentional jammers violates the Telecommunications Law and can incur fines up to 200 000 PLN [UKE, 2022].
How does the classic GSM gurgling sound happen?
GSM sends 217 Hz-spaced time slots. If the phone sits near unshielded audio wiring, bursts demodulate as a 217 Hz pulsating tone [ITU, 2020].
Could a strong neodymium magnet shake the neighbour’s woofer?
Unlikely. The static field would only bias the voice coil; no continuous motion occurs without alternating current. It might even demagnetise the driver, ruining it—an edge-case failure [K&J, 2021].
What volume counts as ‘night-time disturbance’?
WHO and many municipalities flag indoor levels over 40 dB(A) between 22:00 – 06:00 as actionable nuisance [WHO, 2018].
How can I document excessive noise before calling the police?
- Use a calibrated phone app or Class 2 meter.
- Log dB(A) readings every 5 minutes for one hour.
- Keep time-stamped audio clips as evidence. Courts often accept consistent logs [Mazur, 2021].
Could a high-power transmitter damage my own gear?
Yes. A 100 W FM transmitter one metre away can induce 5 V on speaker leads, blowing amplifier inputs [HamQST, 2019].
What legal technical steps reduce incoming bass?
Add 25 mm acoustic drywall, fill the cavity with 60 kg/m³ mineral wool, and seal edges. Lab tests show up to 15 dB bass reduction [AcousticsToday, 2020].
Is there a universal remote that works through walls to mute the neighbour’s amp?
Infra-red remotes need line-of-sight. RF remotes rarely match another brand’s code. Probability of success <5 % in tests [HomeControl, 2019].
Can police act on chronic loud music?
Yes. Repeated calls create a record; courts can fine or order equipment confiscation under Article 51 of the Polish Misdemeanours Code [Sejm, 2020].
Quick 3-step way to calm bass without conflict?
- Talk politely; many neighbours reduce volume when asked.
- Offer cheap felt pads to decouple their speakers.
- If ignored, file a written complaint. Over 60 % of cases resolve after first notice [Warsaw Muni-Police, 2021].
What happens if I still try a DIY jammer?
Custom RF boards often oscillate unpredictably. Tests show 30 % self-destruct due to reflected power, wasting money and risking inspection [RFDesign, 2020].
Any simple white-noise masker I can build?
Yes. 1. Use a NE555 in astable mode at 100 kHz. 2. Feed output into a reverse-biased PN-junction to generate noise. 3. Filter and amplify. Parts cost <20 PLN [Horowitz, 2015].
