Operating references, courtesy Larry / K7LJ —
Here’s an interesting book mentioned on the June 9th edition of the ARRL Contest Update list, available for free download – “The New DXer’s Handbook” third edition, 2021. Available at: www.K7ua.com
Another book of interest to contesting stations running multiple transmitters at the same time, is now available for free download – “Managing Interstation Interference”, by W2VJN: http://www.vibroplex.com/techdocs/INRAD/MII_W2VJN.pdf
More contesting references are posted here — http://www.arrl.org/contest-update-issues?issue=2021-06-09