Presentation Notes from Jerry Ritchie, WA5OKO November 10, 2017By letarc-admin Uncategorized Jerry Ritchie of amateur station WAOKO has passed along the written materials from his recent presentations. Thanks, Jerry! RF Connectors and Impedance (for Amateur Radio) Accurate SWR Measurements Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) Related Post navigation LETARC Propagation NewsletterJerry Ritchie Band-Pass and Band-Reject Cavities Leave a Comment Cancel reply Your email address will not be published. Required fields are marked * Notify me of follow-up comments by email. Notify me of new posts by email.