Threat to Amateur Radio 23cm band

Discussion in 'Amateur Radio News' started by G4TUT, Aug 17, 2019.

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  1. SM0AOM

    SM0AOM Ham Member QRZ Page

    SRD Directive or not, the regulator has decided that WiFi
    and similar mass-market devices should enjoy protection
    against amateur radio transmissions.

    What this tells us about the relevance of amateur radio in some countries is up for interpretation.

    73/
    Karl-Arne
    SM0AOM
     
  2. SM5PHU

    SM5PHU Ham Member QRZ Page

    There is no such choice "SRD Directive or not". The SRD Directive is the law of the land, and applies also to regulators who do not understand that amateur radio is a radio communications service.

    73.
    Jonas SM5PHU
     
    Last edited: Aug 19, 2019
  3. SM0AOM

    SM0AOM Ham Member QRZ Page

    There are no sanctions that I know of that could apply to regulators that
    "do not understand that amateur radio is a radio communications service".

    The only way to survive in the longer term is avoiding picking fights with the regulator, either by stupidity or by incompetence...

    73/
    Karl-Arne
    SM0AOM
     
  4. W0PV

    W0PV Ham Member QRZ Page

    In the USA the FCC has lost in court for attempts to support commercial initiatives or "over-regulate" in the face of conflicting law or other regulatory matters outside its purview.
     
  5. SM0AOM

    SM0AOM Ham Member QRZ Page

    Europe is not the USA...

    73/
    Karl-Arne
    SM0AOM
     
    W0PV likes this.
  6. G6JYB

    G6JYB Ham Member QRZ Page

    >Karl-Arne SM0AOM
    >These radars are now becoming obsolete in Europe and are replaced with C-band and in some countries S-band radars

    Yet another hasty and not well researched statement!

    23cm radars are increasing !
    • For air traffic - as S and C-band are prone to windfarms or loss of their own spectrum. Windfarm developers even foot the bill for new L-bands models
    • For air defense and maritime (google Smart-L)
    • For weather (EEES active) - the weather guys are deploying lots in both 23cm and 920 MHz for wind profiling

    Murray G6JYB
     
  7. WA4ILH

    WA4ILH Subscriber QRZ Page

    Interesting observation Murray, In the United States, the National Weather Service’s Next Generation Doppler Radar was having a hard time distinguishing between a tornado vortex and the rotation of large wind generator blades, especially in the Midwest, like in Kansas. Last I heard, they had reduced the problem with algorithms.
    Tom WA4ILH
     
    N4QX likes this.
  8. SM0AOM

    SM0AOM Ham Member QRZ Page

    You seem to know more about my client's systems than they do themselves...

    Many older L-band PSR:s in the Nordic countries have been decommissioned, and the jury is still out of what their replacements will be. Up to now they have been S-band (Thales STAR-NG) at two sites, one near Stockholm and the other which serves Malmö and Kastrup airports in southmost Sweden.

    The Swedish Air Navigation Services (LFV) has however tendered for some new 3D-radars, which may become L-band.

    In this case their centre frequencies will be carefully chosen to avoid the Galileo E6 carrier.

    The air navigation and radio navigation communities have become quite "interference-conscious" and are guarding their frequency allocations jealously.

    The whole spectrum sharing and interference questions for Galileo were the subject of a presentation some time ago by LFV and the Transport Authority at the Board of Radio Navigation, of which I am a member.

    73/
    Karl-Arne
    SM0AOM
     
  9. PA0MHS

    PA0MHS XML Subscriber QRZ Page

    If you look at the frequency allocations for Galileo, and the E6 carrier in particular, it appears to me that they could have left the orginal 23 cm band (1296-1298MHz) alone, to be used for narrow band amateur use. But I haven't looked at any allocations below the E6 carrier, to be honest.
     
  10. WY7BG

    WY7BG Ham Member QRZ Page

    This is the current trend: Corporations are greedy for spectrum, for themselves and for the mobile phones and id-IoT devices which they use to spy on the public. (Make no mistake about it: the European Galileo system will be used primarily by commercial entities, not the military.)

    What's more, these corporations want to build devices cheaply, without even the halfway decent input filtering that would allow allow other users to employ nearby spectrum. (Witness the recent debacle experienced by LightSquared here in the US, where the existence of GPS devices with pitifully inadequate filtering was cited as cause to deny the use of nearby spectrum for broadband.)

    For this reason, hams, along with the satellite industry and pretty much all other other spectrum users, are in their crosshairs. You'll hear more and more talk about a "race to 5G" (even though there's no such technology as 5G; it's all 4G LTE plus marketing hype), which will be used as an excuse to give more and more spectrum to the mobile carriers/IoT vendors. During this next decade, ALL other users of radio spectrum are going to have to fight to keep even the smallest slivers of it.
     
    Last edited: Aug 19, 2019
    G3SEA, WQ4G, NE8S and 2 others like this.

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