repeater book - SERP Analysis

https://www.repeaterbook.com/

https://play.google.com/store/apps/details?id=com.zbm2.repeaterbook&hl=en_US

https://apps.apple.com/us/app/repeaterbook/id606820166

https://www.arrl.org/news/the-arrl-repeater-directory-2025-edition-now-powered-by-repeaterbook

https://www.reddit.com/r/HamRadio/comments/12knjl4/im_tired_of_repeaterbookcom/

https://www.youtube.com/watch?v=R_2UcmhjR9c

https://www.facebook.com/groups/RepeaterbookOfficial/

https://www.reddit.com/r/amateurradio/comments/w4b7ov/repeaterbook_what_does_tone_up_down_mean/

https://www.youtube.com/playlist?list=PLtSifXkEsAOraJcY47P89loXSNBfr6wDV

http://forums.radioreference.com/threads/anyone-using-repeaterbook.398198/