1. QRP HomeBuilder – QRPHB - https://qrp-popcorn.blogspot.com/
** Radio QRP - https://www.geocities.ws/radio107mhz/
2. DX Cluster Telnet Links - https://www.iw5edi.com/ham-radio/3797/dx-cluster-telnet-links
3. HB9CV antenna online calculator - https://3g-aerial.biz/en/online-calculations/antenna-calculations/hb9cv-antenna-online-calculator
4. IARUMS R1 Newsletter June 2024 - https://www.iaru-r1.org/2024/iarums-r1-newsletter-june-2024/
5. UARO: Ukraine Аmateur Radio Operators - https://t.me/Ukraine_Amateur_Radio_Operators
73 de UT2AB
