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Product Reviews March 2016 Product Reviews: - ARRL
With my antenna nearby, I thought I was getting the high-power RF back into the radio, playing the havoc. A radio TOT is a good idea for the long-winded opera-. Learn More
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General Class - ARRL
What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band? A. 2.8 kHz. B. 5.6 kHz. C. Learn More
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Product Review and Short Takes from QST Magazine - ARRL
I have two solid state. Page 4. QST®– Devoted entirely to Amateur Radio www.arrl.org August 2012. 49 amplifiers — an Ameritron ALS-600 and an Elecraft KPA500. Learn More
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Radiotelephone Transmission - ARRL
Amplifier or. Oscillator formers and with bias on the audio tubes correctly adjusted for distortionless ampli- fication. However, a high degree of radio-. Learn More
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Meet the Versatile Diode - ARRL
Diodes have long been used for changing ac to de voltage (rectifiers), and they have been put to work for many years as detectors to con- vert radio-frequency ... Learn More
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The AMRAD Active LF Antenna - ARRL
Sep 1, 2001 ... he Amateur Radio Research and Development Corporation. (AMRAD) is a nonprofit radio club that specializes in cutting-edge—yet. Learn More
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Study Guide for Exam Questions - ARRL
RF amplifier, detector, audio amplifier. B. RF amplifier, mixer, if ... Insert a high impedance transformer at the driven element. C. Insert a high ... Learn More
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A 21 MHz Four Square Beam Antenna - ARRL
1Notes appear on page 00. Page 2. 2 September 2013 ARRL, the national association for Amateur Radio® www.arrl.org in Figure 1. The element was insulated ... Learn More
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Study Guide for Exam Questions - ARRL
Why is high input impedance desirable for a voltmeter? A. It improves the ... RF amplifier, detector, audio amplifier. B. RF amplifier, mixer, IF ... Learn More
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Test Procedures Manual - ARRL
May 5, 2010 ... 3.12 Set the RF Wattmeter to FWD CW and the two-tone generator power switch to OFF. Return the transmitter to the lower edge of the 80-meter ... Learn More
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