Page:December 1915 QST.djvu/17

 Try This Head Set for Ten Days and see for yourself how clearly you can get stations that are barely audible with your present head set. If it does not prove to be all that we claim for it, we'll gladly refund your money. The. Stromberg-Carlson Radio Head Set is noted for its extreme sensitiveness. The tone is soft and beautifully distinct, which greatly reduces static interferences but brings in weak signals clear and strong.

Furnished with concealed cord connections, universal hall joint adjustment, six foot waterproof cord, laminated pole pieces. etc.

Standard A-9723 Radio Head Set wound to 2000 ohms sent for $8.25. Privilege of return in 10 days if receiving efficiency is not increased.

Bulletin No. 1005 which describes the general construction and “What Some of the Users Say” is free for the asking.

Stromberg-Carlson Telephone Mfg. Company Rochester, N. Y.

Arlington Notes

 Shortly after the 10:00 p. m. time signals. NAA sends weather bulletins in code letters and figures to express weather conditions along the eastern coast of the United States and the Great Lakes.

In case you have lost the key letters used they are given below:―

U. S. W. B. United States Weather Bureau

The first three Figures denote the barometric pressure in inches as (001―30.01) or 959―29.59). The fourth figure represents the direction of the wind:

The last figure gives the force of the wind on the Beaufort Scale.

Beaufort Scale of Wind Force.

Number and designation. Miles per hour.

Examples of Code:―

U. S. W. B. S. 00355 T 93472 United States Weather Bureau Sydney, 30.03, south, fresh breeze, 28 miles per hour; Nantucket, 29.34, west, light breeze, 13 miles per hour.

Wind force greater than 9 is given by a word instead of figures. 