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Interferências de fontes não intencionais Flávio A. B. Archangelo Anatel Brasília, 30 out. 2017 Workshop sobre interferências de fontes não intencionais e suas ameaças para os serviços de telecomunicações

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Page 1: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Interferências de fontes não intencionais

Flávio A. B. Archangelo

Anatel Brasília, 30 out. 2017

Workshop sobre interferências de fontes não intencionais e suas ameaças para os serviços de telecomunicações

Page 2: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Tipos de Interferências

MANIFESTAÇÕES

NATURAIS ARTIFICIAIS

TERRA ESPAÇO INTENCIONAIS NÃO INTENCIONAIS

Harmônicos

Espalhamento

Compartilhamento

Ilegais

RFI de não intencionais se destacaram nos últimos anos

Page 3: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Iluminação: Fluorescentes

Reatores eletrônicos e starters

Page 4: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Iluminação LED em VHF

LEDBenchmark

Page 5: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Iluminação LED em VHF

“Severe case of digital TV/DAB signal disruption...The product has been reported by users to completely cut out digital TV and radio reception even affecting neighbor

houses"

40 dB, eFM

Page 6: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

LED em VHF

Page 7: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

LED x TVD (UHF)

https://www.youtube.com/watch?v=1JgOh4CriTA

Page 8: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

“Impact of unwanted RF energy generated by non- radiocommunication equipment to radiocommunication services”

353 MHz 2,5 km

Page 9: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Iluminação Pública e Semáforos

Page 10: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Semáforos

Page 11: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Degradação SNR

20 dB aprox.

Page 12: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Eletrodomésticos

Page 13: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Eletrodomésticos

Geladeira, batedeira, ventilador, liquidificador, micro-ondas, etc.

Vellano, Villas Boas

Page 14: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Elevadores (PWM)

Gir0ep

Page 15: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Cercas Elétricas

Page 16: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Rede Elétrica

ARRL RFI Handbook

Page 17: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Fontes Chaveadas (SMPSU)

EMCC RSGB

Page 18: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Fontes Chaveadas

Page 19: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Rádio Digital

“For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the four routes. Only on the Northwest route this figure drops to about 50%. This is due to the fact that, as illustrated in Fig. 9, the first portion of this route runs through an industrial area that also has dense aerial power lines, that raises the noise floor making digital decoding difficult”. (Measurements…)

Page 20: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Consequências dos ruídos

Perda de cobertura;

Redução da qualidade do sinal;

Perda de audiência;

Imagem de ineficiência tec. tradicionais;

Dificuldades para adotar novas tec;

Relativização esforços da digitalização;

Aumento de potência, consumo de energia;

Gap Fillers;

Sucateamento e supervalorização de faixas;

Subaproveitamento recurso espectral.

Charles Kelly, Nautel

Page 21: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Tecnologias promissoras

• Energia Solar;

• Energia Eólica;

• IoT;

• Smart Cities;

• WPT;

• Carros elétricos;

• Como sem EMC?

Page 22: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Sistemas Fotovoltaicos

Até 40 dB

EMCC RSGB

40

50

60

70

80

90

100

110

120

130

150k 300 400 500 800 1M 2M 3M 4M 5M 6 8 10M 20M 30M

Level in

dB

µV

Frequency in H z

CE Single Phase S N 457 A uto Test

Res. 442 ANATEL - V oltage on M ains QP - C lasse B Res. 442 ANATEL- V oltage on M ains A V - Classe B

Preview R esult 1-PK+ Preview R esult 2-A VG

F ina l R esult 1-Q PK F ina l R esult 2-A VG

Res. 442 ANATEL - V oltage on M ains QP - C lasse B

Res. 442 ANATEL- V oltage on M ains A V - Classe B

Page 23: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

EMCC RSGB

Page 24: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

ACMA

Page 25: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

ACMA

https://www.youtube.com/watch?v=jWdu9US_7MY

Page 26: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Referências • ACMA: https://www.acma.gov.au/Citizen/Complaints/Telco-complaints-2/Interference-and-reception-

complaints

• ACMA. Can LED light cause TV interference? https://youtu.be/jWdu9US_7MY

• Gir0ep. Radio interferens – Lift Machite. https://youtu.be/UEH6FFqqeEk

• Gruber, Mike (ed.). The ARRL RFI Handbook. 3tr Edition. ARRL, 2010.

• Kelly Junior, Charles. Implications Of Increasing Man Made Noise Floor Levels On Radio Broadcasting. NAB. http://www.nautel.com/resources/presentations/

• LED Benchmark: http://www.ledbenchmark.com/faq/LED-interference-issues.htm

• LED Light Interference. https://youtu.be/NCCuZmGhhuc

• Lima, F. F. et ali. Measurements of Medium Wave HD Radio Reception in a Dense Urban Region. http://ref.scielo.org/2xh2yh

• Rogers, John. EMC – Diagnosing and Reporting RFI. EMC Committee, Radio Society of Great Britain: http://rsgb.org/main/technical/emc/

• TVD UHF x LED: https://youtu.be/1JgOh4CriTA

• Vellano Neto, Victor. Estrutura Técnico Normativa para Promoção da Compatibilidade Eletromagnética. Seminário de Defesa Espectral. http://www.radioamadores.org/biblio/apres/CNR2014/Victor-LABRE-SDE-CNR-2014.pdf

• Vilas Boas Magalhães, Gilberto. Rede Sibratec Compamagnet. Seminário de Defesa Espectral. http://www.radioamadores.org/biblio/apres/CNR2014/Gilberto-LABRE-SDE-CNR-2014.pdf

Page 27: Interferências de fontes não intencionais · Fontes Chaveadas . Rádio Digital For distances up to about 20 km, digital reception was achieved at 90% of the points in three of the

Obrigado!

Flávio A. B. Archangelo

[email protected]

Anatel Brasília, 30 out. 2017

Workshop sobre interferências de fontes não intencionais e suas ameaças para os serviços de telecomunicações