@article {261,
	title = {Simple and Accurate Variable Frequency RF Signal Generator},
	journal = {QEX},
	year = {2018},
	month = {09/2018},
	pages = {3-7},
	chapter = {3},
	abstract = {<p>This generator produces any frequency between 500 kHz and 40 MHz with an accu- racy approaching one part in 109, for example 0.01 Hz at 10 MHz. It uses an Arduino Nano, a GPS receiver with antenna, a digital encoder, a small TFT LCD color display, and the Silicon Labs Si5351A direct digital syn- thesizer (DDS). Together these parts cost me about $150. I will also share some interesting applications for this device.</p>
},
	issn = {0886-8093},
	author = {Elwood Downey}
}
