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The March/April issue of QEX is out, and it is full of theoretical and practical technical articles that you don't want to miss.
In this issue, Milt Cram, W8NUE, and George Heron, N2APB, describe the design and construction details of their "NUE-PSK Digital Modem." The authors provide complete technical details as a companion to their March QST article. Cornell Drentea, KW7CD, presents some schematic diagrams and circuit descriptions for his "Star-10 Transceiver," in Part 2 of this series.
Jack Smith, K8ZOA, provides an interesting look at carbon composition resistor aging as well as inductive and capacitive effects of other resistor construction types in "Carbon Composition, Carbon Film and Metal Oxide Film Resistors." Contributing Editor L. B. Cebik, W4RNL, looks at several impedance matching options for modern HF and VHF beam antennas in "Antenna Options."
Would you like to write for QEX? It pays $50 per printed page. Be sure to check out the Author's Guide for more information. If you prefer postal mail, please send a business-size self-addressed, stamped envelope to QEX Author's Guide, c/o Maty Weinberg, ARRL, 225 Main St, Newington, CT 06111-1494.
QEX is edited by Larry Wolfgang, WR1B, and is published six times a year. The subscription rate for ARRL members in the US is $24. For First Class US delivery, the rate is $37 for members, $49 for nonmembers. For international delivery via air mail, including Canada, the subscription rate is $31 for members, $43 for nonmembers. Subscribe to QEX today.