Best Strategies For Monitoring and Storing HF Volmet and ARINC Frequencies

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    Best Strategies For Monitoring and Storing HF Volmet and ARINC Frequencies


    This author has been studying commercial aviation communications since at least the early 90s.

    Everyone who monitors HF frequencies eventually finds something they like. For some people, it's the CW portion of the amateur bands, for some it's numbers stations, and for others....it's listening to aircraft criss-cross the globe.

    If you're new to this, it's important to know that you need a shortwave receiver with SSB coverage. SSB is upper and lower sideband.

    If you're going to invest in an HF receiver, choose wisely. This author recommends Sangean, Kenwood, Yaesu, and Icom.

    IF you REALLY have money to spend, there are two or three high end models out here that you should invest in. Those brands are AOR, Icom, and JRC.

    Which models should you buy? AOR makes the AR - 8200 MK 3-B (Hand portable), and the AR - 8600 MK 2-B (Base). ICOM makes the R-75 and R-9500. JRC is also a great radio! Anything  you buy from JRC is a great investment!

    With radio recommendations spoken for, we can now discuss strategies for monitoring and storing commercial aviation HF oceanic communications frequencies.

    The first thing you should know is that commercial aviation oceanic comms are spread out by region.

    On the west coast is Hawaii Volmet, and San Francisco ARINC. On the east coast is New York Volmet, and New York ARINC. All frequencies used by the two Volmet stations run by the FAA, and all of the ARINC frequencies are used in SSB, specifically USB (upper side band)

    The next thing you need to know and commit to memory is that the frequencies used are divided by daytime and nighttime usage. Higher frequencies for daytime, lower frequencies for nighttime.

    The BEST strategy this author has found to monitor both of the volmet centers and both of the ARINC centers is to program daytime volmet frequencies first, followed by daytime ARINC frequencies according to ARINC region.

    Whether you go west to east, or east to west doesn't matter. Keep in mind that one of these methods is highly recommended so you can keep your memory channels and memory banks orderly.

    ARINC regions are organized by "Network region".

    New York ARINC regions are:

    Network North Atlantic "A"

    Network North Atlantic  "E"

    Carribean Network "A"

    Carribean Network "B"

    As you see, the east coast of the U.S. ARINC system has a total of four networks.

    The west coast ARINC system gets a little more complicated because they have to break up the Pacific Ocean into more strategic coverage areas.

    The west coast ARINC networks are:

    Central East Pacific Network 1

    Central East Pacific Network 2

    Central West Pacific Network

    South Pacific Network

    North Pacific Network

    After much study, thought, and experimentation, this author found that the following memory program will more likely work for most people. All said and done, you'll need 90 memory channels since we're also going to add U.S. HF-GCS frequencies. An explanation for that will come later.

    Memory Channel Assignment

    WWV Daytime 1 - 20.000

    WWV Daytime 2 - 15.000

    WWV Daytime 3 - 10.000

    WWV Nighttime 1 - 5.000

    WWV Nighttime 2 - 2.5000

    HNL Volmet Daytime - 13.282

    New York Volmet Daytime 1 - 13.270

    New York Volmet Daytime 2 - 10.051

    New York Network "A" Daytime - 13.306

    New York Network "A" Daytime 2 - 17.946

    New York Network "A" Daytime 3 - 21.964

    New York Network "E" Daytime 1 - 11.309

    New York Network "E" Daytime 2 - 13.354

    New York Network "E" Daytime 3 - 17.952

    Carribean Network "A" Daytime - 11.396

    Carribean Network "B" Daytime - 11.330

    Carribran Network "B" Daytime 2 - 13.297

    Carribean Network "B" Daytime 3 - 17.907

    SFO ARINC Central East Pacific Network 1 Daytime - 10.057

    SFO ARINC Central East Pacific Network 1 Daytime 2 - 13.354

    SFO Central East Pacific Network 2 Daytime - 11.282

    SFO Central East Pacific Network 2 Daytime 2 - 13.288

    SFO Central East Pacific Network 2 Daytime 3 - 21.954

    SFO Central West Pacific Network Daytime - 11.384

    SFO Central West Pacific Network Daytime 2 - 13.300

    SFO Central West Pacific Network Daytime 3 - 17.904

    SFO Central West Pacific Network Daytime 4 - 21.985

    SFO South Pacific Network Daytime - 13.261

    SFO South Pacific Network Daytime 2 -17.904

    SFO North Pacific Network Daytime 10.048

    SFO North Pacific Network Daytime 2 - 11.330

    SFO North Pacific Network Daytime 3 - 13.273

    SFO North Pacific Network Daytime 4 - 13.339

    SFO North Pacific Network Daytime 5 - 17.946

    SFO North Pacific Network Daytime 6 - 21.925

    At this point you'll notice a system pattern of grouping east to west and lowest daytime frequency to highest daytime frequency.

    You'll notice that WWV daytime frequencies are listed first, followed by WWV nighttime frequencies. That was done as a good idea in the event you don't have a clock nearby or your clock stops working...you'll always have a quick way to know what time it is.

    WWV is also a nice way to test propagation at any given time.

    Suggested Nighttime Volmet and ARINC programming / monitoring list:

    HNL (Hawaii) Volmet Nighttime 1 - 2.863

    HNL Volmet Nighttime 2 - 6.679

    HNL Volmet Nighttime 3 - 8.828

    New York Volmet Nighttime 1 - 3.485

    New York Volmet Nighttime 2 - 6.604

    New York ARINC Night North Atlantic Network "A" - 3.016

    New York ARINC Night North Atlantic Network "A" 2 - 5.598

    New York ARINC Night North Atlantic Network "A" 3 - 8.906

    North Atlantic Network "E" Nighttime 1 - 2.962

    North Atlantic Network "E" Nighttime 2 - 6.628

    North Atlantic Network "E" Nighttime 3 - 8.825

    Carribean Network "A" Nighttime 1 - 2.287

    Carribean Network "A" Nighttime 2 - 3.455

    Carribean Network "A"Nighttime 3 - 5.550

    Carribean Network "A" Nighttime 4 - 6.577

    Carribean Network "A" Nighttime 5 - 8.846

    Carribean Network "B" Nighttime 1 - 5.520

    Carribean Network "B" Nighttime 2 - 6.586

    Carribean Network "B" Nighttime 3 - 8.918

    SFO (San Francisco) Central East Pacific Network Nighttime 1 - 3.413

    Central East Pacific Network Nighttime 2 - 3.452

    Central East Pacific Network Nighttime 3 - 5.574

    Central East Pacific Network Nighttime 4 - 6.673

    Central East Pacific Network Nighttime 5 - 8.843

    Central West Pacific Network Nighttime 1 - 2.998

    Central West Pacific Network Nighttime 2 - 4.666

    Central West Pacific Network Nighttime 3 - 6.532

    Central West Pacific Network Nighttime 4 - 8.903

    South Pacific Network Nighttime 1 - 3.467

    South Pacific Network Nighttime 2 - 5.643

    South Pacific Network Nighttime 3 - 8.867

    North Pacific Network Nighttime 1 -2.932

    North Pacific Network Nighttime 2 - 5.628

    North Pacific Network Nighttime 3 - 5.667

    North Pacific Network Nighttime 4 - 6.655

    North Pacific Network Nighttime 5 - 8.915

    North Pacific Network Nighttime 6 - 8.951

    So far, if you're paying attention and keeping track of the Volmet and ARINC system layouts, you've noticed this overall pattern of system design and usage:

    HNL Volmet has a total of 4 frequencies

    N.Y. Volmet has a total of 3 frequencies

    North Atlantic Network has a total of 12 frequencies

    Carribean Network has a total of 12 frequencies

    Central East Pacific Network has a total of 10 frequencies

    Central West Pacific Network has a total of 8 frequencies

    South Pacific Network has a total of 5 frequencies

    North Pacific Network has a total of 12 frequencies

    Now we move forward to the LDOC frequencies. LDOC is Long Distance Operational Control. These frequencies are used by flight crews who need to send messages to their operations centers.

    There are a total of 6 LDOC frequencies, 4 daytime and 2 nighttime frequencies.

    11.342 daytime

    13 348 daytime

    17.925 daytime

    21.964 daytime

    3.494 nighttime

    6.640 nighttime

    For an even more detailed technical explanation of these, and other frequencies along with a more exhaustive INTERNATIONAL listing of HF aeronautical frequencies, see the February 25th, 2015 update at the B-Town Wide Spectrum Monitor Blog by Larry Van Horn N5FPW (President Teak Publishing Company)

    http://monitor-post.blogspot.com/p/this-international-hf-aero-frequency.html?m=1

    With all of that out of the way, let's add the U.S. HF-GCS frequencies to this list. These should be part of monitoring strategy since military aero activity and other military matters impact commercial aviation travel.

    U.S. HF-GCS Daytime frequencies:

    11.175 - main

    13.200 back - up

    15.016 back - up

    U S. HF-GCS Nighttime frequencies:

    4.724 back - up

    6.739 back - up

    8.992 - 24 hours

    That's it! Hopefully, all of you enjoyed this and find it useful!


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