Transmission Of Images- No Internet, Satellite, Cable, Or Cells Needed!
LABELLE, FL. -- Amateur radio operators, also known as "hams" have been experimenting with digitally transmissions of high definition photographs and images directly from a radio transmitter to anyone with a radio receiver tuned at the same frequency.
The photo above is an example of the latest high quality photo received by a LaBelle, Florida ham operator, Don Browne at his FCC licensed radio station KQ4YM.
The digital transmission method used by amateur radio operators to send and receive photos is call DRM, commercially used by some radio stations to transmit high quality HD radio around the world.
The image is sent using DRM, an abbreviation for the trademarked Digital Radio Mondiale, a standardized digital broadcast system for any broadcast frequency. The DRM format provides digital quality from digital radio signals, combined with the possibility of enhanced features for radio broadcast stations including Surround Sound, text information, HD photo slideshows, and data services.
The advantage of the DRM system is one radio transmitter can broadcast to an unlimited number of receivers without any infrastructure between the two radios. No phone lines, internet, cable or satellite is needed to transmit or receive an image or sound transmission.
Although any radio frequency can be used to receive and transmit images like the one above, ham radio operators typically use the shortwave frequencies of 7.173 and 14.233 Megahertz.
Anyone with a shortwave radio can receive photos by downloading a DRM program called Easypal and tuning to the radio frequency of 7.173 or 14.233.
(Photo: HD photo transmitted by amateur radio and received in LaBelle, Fl. Note the time, date, and radio station that sent it.
The photo will change automatically as each new photo is received by KQ4YM's radio receiver. Last 12 images received.)
More information on amateur radio and DRM
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