ZL Autumn and Winter Sprints, CW

A 29-minute CW sprint on 80 metres every Tuesday evening in April and August, exchanging a report and the outside temperature.

Rules at nzart.org.nzThe rules are the sponsor's. This page holds the dates and the facts.

When it runs

Every Tuesday in April and August

0800Z → 0829Z Tuesday

Times are UTC, as the sponsor states them.

Next runnings

0800Z Tue 6 Apr → 0829Z Tue 6 Apr · 29m2027
in 187 days
0800Z Tue 13 Apr → 0829Z Tue 13 Apr · 29m2027
in 194 days
0800Z Tue 20 Apr → 0829Z Tue 20 Apr · 29m2027
in 201 days
0800Z Tue 27 Apr → 0829Z Tue 27 Apr · 29m2027
in 208 days
0800Z Tue 3 Aug → 0829Z Tue 3 Aug · 29m2027
in 306 days
0800Z Tue 10 Aug → 0829Z Tue 10 Aug · 29m2027
in 313 days

Operating

Modes: CW
Bands: 80m
Suggested frequencies CW 3520-3550 kHz
Exchange: RS(T) and the outside temperature to the nearest degree; on CW, 'm' denotes a minus sign
Power categories: Low Power 100 WQRP 5 W
Logs: Cabrillo
Who can enter: Anyone, anywhere.
NZART states no geographic restriction, but it is a New Zealand 80-metre evening sprint and the practical range says so.

Where this comes from

Checked against the sponsor: Yes. The rule on this page was read off NZART's own published rules. Link last confirmed 2026-08-17.
What the source says: nzart.org.nz (ZL Autumn and Winter Sprints rules): 'Each Tuesday in April and August: 0800-0829 UTC (2000-2029 NZST) CW only / 0830-0859 UTC (2030-2059 NZST) SSB only / 0900-0929 UTC (2100-2129 NZST) FT4 only'. Band: '80m'. Categories: 'Single Operator, one transmitted signal only, use of the DX cluster is allowed and one of: 100w maximum (by convention Low Power in your contest logger); or QRP - up to 5W CW, 10W SSB and 5W FT4'. Exchange: 'CW/SSB RS(T) report and Outside Temperature to the nearest degree.' Scoring: 'Each mode will be scored separately.'
Recorded caveats: One of three back-to-back 29-minute sprints on the same evening, each in a different mode and each scored separately, which is why they are three records here rather than one. Logs are due 'within 24 hours of the end of the sprint' -- shorter than a day, so no deadline interval is computed; they go to markzl3ab@gmail.com.

Something wrong? How to report it — a link to the sponsor's own page is all it takes.

Take it with you

Add to Google Calendar Subscribe (iCal)This record as JSON

Add to Google Calendar puts the next running in as a single event. It is one event, not a subscription — come back for the one after it, or use the feed below.

Subscribe (iCal) carries this contest's runnings for the next twelve months as UTC instants and keeps them current. Apple Calendar, Outlook and Thunderbird take this address directly. Its identifiers are stable across deploys, so re-subscribing does not duplicate anything: https://contestclock.com/api/ics?id=nzart-sprint-cw

Google has no working one-click subscribe. Paste that address into Settings → Add calendar → From URL. Google then polls it on its own schedule, often 8–24 hours, and that cannot be forced — so use Add to Google Calendar above if you want the next running in your calendar now.