Winter 2012

NRK Radio will continue to broadcast randomly on 95.7 FM. The station is best received within Salt Lake City limits, on a modern digitally tuned car stereo.

Keep an eye open for NRK Radio broadcast event posters around downtown SLC.

Mycal's Simple J-Pole Antenna

Posted by: TecSpectr on Saturday, April 17, 2010 - 10:44 PM
General

After experimenting with about every kind of "three meter" antenna ever designed, we keep on returning to our old standard - the J-Pole. The following article and illustration have been shamelessly lifted from Mycal's site at http://www.mycal.net/old/projects/mpr/jpole.htm - Here's to Mycal..

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Choosing An Exciter

Posted by: TecSpectr on Sunday, July 19, 2009 - 09:31 PM
General

An exciter, also commonly called a “transmitter”, takes an audio feed, and turns it into a radio wave. All FM exciters operate on the same essential principle. First an oscillator produces a “very high” frequency carrier wave – somewhere between 88000 and 108000 cycles per second. An audio signal is then used to dynamically “modulate” the carrier wave, causing slight variations in that frequency. Most exciters make use of at least one RF amplifier stage to amplify the modulated carrier wave (radio wave). Finally, the radio wave is used to vibrate an antenna. If done well, those vibrations will travel about until they reach your receiver’s antenna.

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Winter 2012

Mycal's Simple J-Pole Antenna

Choosing An Exciter

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