Rising RF Noise Levels - IARU submits paper to CISPR

Discussion in 'Amateur Radio News' started by G4TUT, Jun 4, 2020.

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  1. G4TUT

    G4TUT Ham Member QRZ Page

    Rising RF Noise Levels - IARU submits paper to CISPR

    The IARU have submitted a paper to the International Special Committee on Radio Interference (CISPR) on the problem of increasing RF noise from digital devices

    IARU EMC specialists Tore Worren LA9QL and Martin Sach G8KDF have submitted a paper to CISPR concerning the increasing impact of multiple digital devices on the noise levels in the radio spectrum.

    The paper was considered at the CISPR Steering Committee in late May, and adopted for circulation to CISPR National Committee for comment as a Committee Draft, with a view to it becoming a CISPR Report.
    IARU hopes that the result of this will be amendments to the way in which standards are developed, to recognise the need to properly consider the cumulative impact of multiple devices.

    Source IARU Region 1 https://iaru-r1.org/


    KD9OWE, G8HGN, F8WBD and 3 others like this.
  2. KQ6XA

    KQ6XA Ham Member QRZ Page

    Provide a link to the paper, please.
    NR5O, W0PV, W1YW and 2 others like this.
  3. WD4IGX

    WD4IGX Premium Subscriber QRZ Page

    Doesn't matter what kinds of standards anyone sets, if the actual market and neighborhoods are flooded with cheap Chinese junk that doesn't comply with them.
    K4XJ, KB1MM, G2NV and 20 others like this.
  4. WQ4G

    WQ4G Ham Member QRZ Page

    Now, if we can just get the FCC to sit up and pay attention...

    For more than a year now I have been trying to improve the RFI situation at my station. I have had SOME success in tracking down and eliminating SOME of the sources, but it has been a learning process to say the least. And, I am in no way inferring that I am an expert. But, I have come to a few conclusions on the subject based on my observations. Disclaimer: I realize that my observations are not scientific research.

    First, the average person does not have a clue about RFI (or RF in general). Generally, RF energy can not be seen, smelled, felt, tasted, or heard (without special equipment), therefore, the average person will not complain about RFI (or RF). People will complain to governmental agencies (code enforcement for example) about smoke, dust, or a really bad smell in the neighborhood. But, not RFI.

    Second, the average Amateur Radio Operator can not (or will not) afford the [proper] equipment necessary to locate RFI sources.

    Third, Amateur Radio Clubs (at least the ones I have had contact with) seem to have no interest in helping their members with RFI problems. Very few, if any, have the resources (equipment, people, knowledge) to locate and identify RFI sources.

    Fourth, the FCC is not proactive about RFI. They do not look for RFI sources and there is no mechanism to ensure that imported devices actually comply with existing rules and regulations. There is an approval process, but no follow up to ensure that what is being imported actually matches what was approved.

    Fifth: There are many radiators of radio noise (RF) out there. Many more than most people and most Amateur Radio Operators might realize.

    Sixth: The term 'Radio Frequency Interference' is a bit ambiguous in itself. There are a lot of unwanted or unnecessary RF signals in the environment. Which ones are interference? And, which ones can (or could) be reported? For example: In searching for the source of the RFI (interference) to my station I have found at least six business entities that are emitting RF signals, which can be heard well beyond their property lines. These RF signals do not seem to be interfering with my station, but they are extraneous RF signals that can be heard somewhere in the radio spectrum and therefore must be causing interference somewhere in the radio spectrum. Is this RFI? Can it be (should it be) reported as RFI?

    Dan WQ4G
    K4XJ, W7WSL, WD5DKA and 14 others like this.
  5. K0UO

    K0UO Platinum Subscriber Platinum Subscriber QRZ Page

    All Good Points
    PE1KWE likes this.
  6. N3KE

    N3KE Ham Member QRZ Page

    Good points! I do disagree with this one though:

    An RSP1A can be had for $100 and most folks already have at least one compatible laptop or smartphone laying around for mobile operation. That and some homemade loops are all the equipment necessary. In fact this setup is vastly more useful than some of the dedicated RFI finding equipment of years past that cost tens of thousands of dollars.

    Honestly it has never been easier for a ham on a budget to identify and locate RFI. There still is of course as you say a knowledge barrier. And as you allude to would seem a place clubs could help. RFI is like an advanced fox hunt and I suspect clubs could make a minor event out of tracking it down for members.
    PE1KWE, WQ4G and W2KG like this.
  7. K6ITR

    K6ITR Ham Member QRZ Page

    Here in southern California, the Orange County Transit District (OCTA) buses have some kind of RFI that is so strong that if I am within 100 feet of one of these buses, my two meter Yaesu mobile's front end is overwhelmed with an S9-level "buzz". It may be some kind of tracking device, but the bottom line is that we are being overrun with LEDs, digital adaptive cruise controls, roadside and in-car speed and proximity sensors, automated cameras, tracking systems, electric and hybrid vehicles, and a host of other electronic hash that is creating an ever-increasing noise floor that covers the entire amateur radio spectrum. I'm surprised any of us can hear anything. Trying to regulate and eliminate these RFI sources is beating back the ocean with a hammer. Pretty soon, 100 watts will be considered QRP, because that's what it will take to be heard at all.
    W7WSL, PE1KWE, G2NV and 5 others like this.
  8. G0VEO

    G0VEO Platinum Subscriber Platinum Subscriber QRZ Page

    i for one cannot see an end to the massive worldwide influx of electronic garbage from the likes of China along with the atrocious poor quality Wallwart power supplies that accompany this junk....i think what you
    are seeing is only the tip of the iceberg and as such will unfortunatly only get worse as most countries are fighting to maintain their economy by selling this junk to whoever will buy.
    W7WSL, PE1KWE, G2NV and 5 others like this.
  9. KA0HCP

    KA0HCP XML Subscriber QRZ Page

    The first step in addressing the problem is to get recognition of the authorities. Second is to set tighter standards.... One step at a time.

    -It is not reasonable to expect spectrum users, e.g. amateurs to perform enforcement duties.
    PE1KWE likes this.
  10. SM0AOM

    SM0AOM Ham Member QRZ Page

    It is highly unlikely that amateur radio will get some recognition of its own with respect to RFI or EMI.

    Only when other, more significant or paying, spectrum users
    are threatened by interference will the Authorities act.

    What is going on in Europe is trying to join forces with safety related spectrum users, especially considering the vastly increased spectrum pollution coming from small- and medium-scale solar energy.

    Alone, radio amateurs are considered just as nuisances.

    Hopefully, there will be court decisions about the status of spectrum users compared to "green energy", as the legal aspects are not very clear at the moment.

    HB9EPC, N0TZU, W5CJA and 2 others like this.

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