@conference {335, title = {Propagation on 630m and 2200m (Booth Talk)}, booktitle = {Dayton Hamvention}, year = {2019}, month = {05/2019}, publisher = {HamSCI}, organization = {HamSCI}, address = {Xenia,OH}, abstract = {

Propagation on 630m and 2200m: Our two new bands provide interesting propagation opportunities. Ionospheric absorption, polarization and refraction will be reviewed on these bands, and compared to 160m and HF (3-30 MHz). General guidelines will be given to enhance your experience on 630m and 2200m.\ \ 

}, author = {Carl Luetzelschwab} } @conference {334, title = {The Third Source of F2 Region Variability (Booth Talk)}, booktitle = {Dayton Hamvention}, year = {2019}, month = {05/2019}, publisher = {HamSCI}, organization = {HamSCI}, address = {Xenia, OH}, abstract = {

The Third Source of F2 Region Variability: Although solar radiation instigates the ionization process and causes it to vary in the long-term (e.g., monthly and over a solar cycle) and in the short-term (daily), two other sources of short-term variability contribute significantly to the amount of F2 region ionization at any given location. These are geomagnetic field activity and events in the lower atmosphere coupling up to the ionosphere. This short talk will focus on this third source - events in the lower atmosphere coupling up to the ionosphere.

}, author = {Carl Luetzelschwab} } @conference {161, title = {Introduction to Space Weather and Propagation}, booktitle = {Dayton Hamvention}, year = {2017}, address = {Xenia, OH}, abstract = {

A broad overview of space weather and the effects on propagation is presented, including a review of general band characteristics, and a discussion of expectations for the bands during the 2017 Total Solar Eclipse.

}, author = {Carl Luetzelschwab} } @article {139, title = {The New Sunspot Numbers}, volume = {100}, year = {2016}, month = {10/2016}, pages = {38-41}, issn = {0033-4812}, url = {http://www.nxtbook.com/nxtbooks/arrl/qst_201610/index.php}, author = {Carl Luetzelschwab} }