title Amateur Radio (Ham Radio) Archive user strick ip 75.144.20.99 vol 1 lock ******** /box( /subsection Presentation slides by KK6DAC Rachel Kinoshita: * /file PAARA_-_Solar_101_-_20180110.pdf Solar 101   (for Palo Alto Amateur Radio Association) * /file SMC-CERT_-_Batteries-20180713.pdf Batteries 101   (for San Mateo County CERT Communicators) /box) / / HF Filters: http://www.kf7p.com/KF7P/Morgan_Filters.html /link https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf The Si5351 is an I2C configurable clock generator that is ideally suited for replacing crystals, crystal oscillators, VCXOs, phase-locked loops (PLLs), and fanout buffers in cost-sensitive applications /file K9YC-ContestAudio.pdf Clean, Punchy, Competitive Contest Audio Without Splatter, by Jim Brown K9YC ( more at http://k9yc.com/ ) Having Fun with RTTY Contesting Ed Muns, W0YK /link https://www.contestuniversity.com/wp-content/uploads/2018/05/9.-W0YK-Having-Fun-with-RTTY-Contesting-2018.pdf ( cache: /file 9.-W0YK-Having-Fun-with-RTTY-Contesting-2018.pdf ) /link https://mindmatters.ai/2019/03/things-exist-that-are-unknowable/ Caitlin's