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MDSR's Propagation monitor is available in realtime on the web

Discussion in 'Amateur Radio News' started by VE7DXW, Sep 19, 2016.

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  1. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    Hi Everybody;

    The development of the "Scanning RF-Seismograph" continues and the deadline to measure the solar eclipse Aug 2017 is less than a year away.... we are in good shape! The the RF-Seismograph is already recording the activity of 6 bands and logging the data. Our software run continuously for more than 6 weeks and counting!
    We are also looking for amateurs that are interested in joining the effort to record the solar eclipse in as many locations as possible. Please join our Yahoo group:

    The MDSR Team has again come up with a cool new way to indicate band activity. We were able to extract the signal from the noise and and display the results in gray scale vertical lines (white is best propagation). This display is different from the noise level graph because it does not indicate changes in noise level and only indicates activity. This makes it easier to determine which band is open.
    The new graph can be seen on our home page:

    The solar flux indicator is only showing a global possibility for propagation. The "Scanning RF-Seismograph" takes the measurements at the spot it matters most - from your location! Now that we can separate the noise from the signals we can develop a notification system that sends an e-mail if there is propagation. Never miss an band-opening again!

    All the best MDSR Team

    Alex - VE7DXW
    K3RW and W9AFB like this.
  2. VA7WPN

    VA7WPN Ham Member QRZ Page

    This is very interesting, Im on the West coast of Van Isl. and I will try this out over the next few weeks.
  3. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    Hi John and Everybody;

    I have just checked your location and found that you are located on the coast near mountains. We have found that stations that are near a slope and when clouds rise have a very hard time to hear other stations due to cloud to cloud discharge. Rising clouds will create a roar in your receiver and this is a very local event. Since the MDSR test station is located in Lynn Valley a bit removed from the local slopes the discharge is not as bad as location directly at the mountains.
    Your propagation will not necessarily match the propagation I am getting!

    Please do let me know how close my measurement is to your experience.

    Alex - VE7DXW
  4. KL7AJ

    KL7AJ XML Subscriber QRZ Page

    Thank you ....I've signed up. I think I'll have some interesting information to contribute.
  5. K5BIZ

    K5BIZ Ham Member QRZ Page

    Here are a few other propagation websites you can also try ...

    HamCAP graphic prediction software - choose antennas, height, power etc. great for "what if I change this"

    IonoProbe conditions monitor software - nice

    VOACAP Online interactive graphic prediction= Absolutely simple to use

    Global ionospheric map, near real time, Maximum F2 frequency

    K5BIZ -- BIZ
  6. K5BIZ

    K5BIZ Ham Member QRZ Page

    The above is mostly obtuse, wildly inaccurate, and mostly wrong. Like the Horoscopes in newspapers. These systems work as long as you don't keep track or keep records. Nobody ever went to bed wondering why they didn't meet a tall dark stranger or why they didn't take a long business trip.

    BUT, Contesters, such as myself, keep very detailed records. Being a retired Electrical Engineer and a professional computer programmer I knew this could done better.

    So I put together my own ... and here comes the plug ... wait for it ...
    KG5ILR and W0BTU like this.
  7. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    Hi BIZ and Everybody;

    We are fully aware of all of these propagation tools and they are great, but they do not take into effect the fact that a lot of propagation happens on a very small scale. All these models and propagation tools are designed for a global scale and they are all based on solar effects. It is like using one weather station to measure the temperature all over the world.

    The difference is that you can use your station and your antenna to measure the propagation at your location. The geographic area that surrounds your station has a very big effect on propagation. To run your own propagation tool is the only way to get accurate readings and to understand the behavior of your section of the sky and your setup.

    All the best;

    Alex - VE7DXW
  8. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    Hi BIZ

    Propagation is a local issue and it can not be solved with a global tool!

    Do you ever wonder why your neighboring station can hear a DX contact and you can't? How does your propagation tool account for that?

    All the best;

    Alex - VE7DXW
  9. K0XKX

    K0XKX Ham Member QRZ Page

    But the link actually takes you to

    Otherwise, it looks kind of cool.
  10. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    The MDSR measures the propagation where it matters most. At your station! Once set up it gives you propagation information that comes right out of your antenna in real time. There is no guess work on what the ionosphere does because the RF-Seismograph measures and logs real activity.

    The issue with solar flux based propagation models is that they do not work when there is no solar activity, but there is still propagation!!

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