CQ WW Zone Pair QSOs: 2013

This post shows the number of QSOs for pairs of zones from the CQ WW contests for 2013. The plots are created from the augmented file (cq-ww-2005--2017-augmented.xz; see here for details of the augmented format) derived from the public logs.

The procedure is simple. We consider only QSOs that meet the following criteria:

1. marked as "two-way" QSOs (i.e., both parties submitted a log containing the QSO);
2. no callsign or zone is bust by either party.

A counter is maintained for every pair of zones (i.e., 1-1, 1-2, 1-3 ... 40-39, 40-40) and the pertinent counter is incremented once for each distinct QSO between stations in those zones.

Separate figures are provided for each band, led by a figure integrating QSOs on all bands. The figures are constructed in such a way as to show the results for both the SSB and CW contests on a single figure. (Any zone pair with no QSOs that meet the above criteria appears in black on the figures.)