Readme.txt for PeteLoop.zip PeteLoop.zip contains files pertaining to "A PLL Spur Eliminator for DDS VFOs" By Rick Peterson, WA6NUT (QEX, July/August 2000, pp 40-49). TI-82.txt is a list of commands that program a TI-82 calculator to plot open-loop gain and phase response according to equations in Fig 14.47 of The ARRL Handbook for Radio Amateurs (p 14.44 of the 2000 edition). The Handbook equations assume ideal op-amp gain and bandwidth, and may be inaccurate when designing for wide loop bandwidths. The ARRL Handbook is available for purchase at www.arrl.org/catalog/. 73, Bob, KU7G 11:52 AM Friday, June 23, 2000 Robert J. Schetgen, KU7G/1 American Radio Relay League Senior Assistant Technical Editor 225 Main St QST Team Newington, CT 06111-1494 Hints & Kinks Editor QEX Managing Editor e-mail: rschetgen@arrl.org ph: 860-594-0277 (direct) fax: 860-594-0259 Have you seen the new QEX? Wow! Check it out at http://www.arrl.org/qex/