Do not confuse this "Cantenna" with the Heathkit "HN-31 Cantenna", which (despite having a RF connector) serves a somewhat different purpose... https://www.orc

Do not confuse this "Cantenna" with the Heathkit "HN-31 Cantenna", which (despite having a RF connector) serves a somewhat different purpose... https://www.orcadxcc.org/content/cantenna_va7jw.pdf https://www.orcadxcc.org/content/cantenna_va7jw.pdf