ULTRA-SHORT-WAVE RADIO AT VATICAN (May, 1933)

ULTRA-SHORT-WAVE RADIO AT VATICAN

An ultra-short-wave radio station has been installed at Vatican City, Italy, for communication between the Vatican and the summer residence of Pope Pius XI at Castel Gandolfo, twenty miles away. The set uses waves only fifty-seven centimeters (about twenty-one inches) in length. According to its noted designer, Gugleilmo Marconi, it represents the ”first practical application of microwaves.” Marconi has been endeavoring for more than thirty years to harness these waves, which are a minute fraction of the length of those used in ordinary broadcasting. Such waves may be focused directly at the receiving station, like a beam of light, using a parabolic antenna as a mirror. Messages may be transmitted in this way with economy of power and comparative secrecy. Until recently it was supposed that ultra-short waves could not be used for long-distance transmission because they would not follow the curvature of the earth’s surface. In a test last year, however, Marconi succeeded in sending a one-way message 167 miles on a twenty-one inch wave.

10 comments
  1. Caya says: April 26, 20071:35 pm

    Wouldn’t the people in between those two points end up being “cooked”?

  2. Charlie says: April 26, 20071:53 pm

    Only when someone other than the Pope is speaking. His microwaves are infallible.

  3. Stannous says: April 26, 20072:45 pm

    And when he’s wearing his mitre the rays are channelled away to the earth.

  4. latente says: April 27, 20072:20 am

    Vatican Radio exceeding Italian laws on radiation and of being a health hazard.
    http://news.bbc.co.uk/2…

  5. jayessell says: April 27, 200712:04 pm

    What is that wavelength in mHz?

    Can it pass through the Heavyside Layer and reach Heaven?

  6. jayessell says: April 27, 200712:27 pm

    Wiki says: A microwave oven works by passing microwave radiation, usually at a frequency of 2.45 GHz (a wavelength of 12.24 cm), through the food.

    Dang! Now I’m confused.

    My dad had a CB in the 1960s-70s.

    If 10 meter was 30 mhz then
    1 meter = .3 GHz
    1/8 meter = 2.4 GHz

    So 0.57 meter should be near 526 MHz.

    (Assuming a speed of light of 3 million meters per second.)

  7. Blurgle says: April 28, 20076:22 am

    This is actually UHF broadcasting. In 1933!

  8. Juan Koopermann says: February 22, 20084:29 pm

    The frequency in Hertz or cycles per second is 5259516.807 or 5.26 Megahertz – nowhere near UHF, which starts at 328.6 Mhz. The 5.26 Megahertz frequency is just below the current 60 Meter Amateur Band, which is the High Frequency (HF) portion of the radio spectrum.

  9. KDS says: March 3, 20081:05 pm

    57 cm converts to about 526MHz Freq(in MHz)=300/wavelength (in meters) thus:
    F= 300/.57
    F=526.315 MHz

    For 1933, that is certainly “micro-” enough.

  10. john says: January 12, 20095:57 pm

    This is part of the the UHF band as already described by many.

    Whoever calculated it to be 5.26 mhz is wrong.

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