C21DA Naoero

C21DA Naoero

DX Operation IOTA OC-031
🇳🇷 C2 — Nauru

VK4MAP was active as C21DA from Naoero, Nauru from 23 September to 5 October 2026. The operation counts for IOTA OC-031 (Nauru). Activity was reported on 80m, 40m, 20m, 15m and 10m, SSB. QSL via VK4MAP (direct); direct requests must include a self-addressed envelope (SAE).

SSB10m15m20m40m80m
Updated on 01 Nov 2026
Location: Naoero
QSL via: VK4MAP, direct
CONCLUDED
From23 Sep 2026
To05 Oct 2026
Latest news
C21DA is active from Naoero, with VK4MAP operating. Activity has been mainly on 40m and 10m SSB.
· DX-World.net · full history

C21DA log & QSL

No online log for C21DA (Club Log or LoTW) has been reported yet. QSL for C21DA via VK4MAP, direct. Latest C21DA news and QSL updates are listed under C21DA news & updates.

Live cluster spots Official website Add to calendar Google Calendar

C21DA Live Spots

19:08:11 UTC
UTC Spotter Frequency Mode Comments Band Age
12:18 02 OctSP3TLJ14241.0SSBup5-10 tnx 73! gl20m43d
12:05 02 OctR9FO14241.0SSBtnx qso up520m43d
12:04 02 OctR9FO14201.0SSBtnx QSO Up 520m43d
12:01 02 OctDK1WP14241.0SSBTNX 5/9 - 5up20m43d
11:56 02 OctVK2RI14241.0SSB+520m43d
11:52 02 OctPD1JN14240.0SSBTNX 73 Split 5/10 UP20m43d
11:52 02 OctG4XNR14240.0SSBqsx 14245.0020m43d
11:42 02 OctEW7GZ14240.0SSBUP 5 TNX20m43d
11:40 02 Oct9A2AJ14240.0SSBdeep qsb, tnx gl up520m43d
11:18 02 OctF4FTA14240.0SSBSplit 5 up SP20m43d
11:15 02 OctDJ4EL14240.0SSBup, OC-03120m43d
11:04 02 OctVK2KET14240.0SSB5-7 Hunter Valley NSW VK Land20m43d
10:58 02 OctON6PL14240.0SSB55 sp20m43d
11:40 01 OctK1XV7166.0SSBunder local ragchewers40m44d
11:31 01 OctLA6RJA10136.0FT8ccc c2* iota oc-03130m44d
11:29 01 OctW7TJ7166.0SSB—40m44d
11:59 30 SepYE1BON7166.0SSBSimplex 5940m45d
11:53 30 SepWB3AVN7166.0SSBSimplex40m45d
11:45 30 SepHL2WA7166.0SSBSimplex, OC-03140m45d
11:39 30 SepJI2FBG7166.0SSB—40m45d
11:37 30 SepUN7LZ7166.0SSBgud sig, smplx40m45d
11:33 30 SepK9MBQ7166.0SSB58 in VA40m45d
11:25 30 SepM7KZO14245.0SSB—20m45d
11:08 30 SepEA4BT14245.0SSB35 in madrid spain20m45d
09:32 30 SepIK4IYC18150.0SSBCCC C2*17m45d

Best time to work — by continent

Busiest band and UTC window per continent, based on cluster spots collected so far for this operation.

ContinentBest bandBest time (UTC)Based on
Europe20m09:00–12:00 UTC42 spots

Source reports

Our sources do not fully agree on the details of this operation. We list what each one reports below and highlight where they differ from our listing.

NG3K ADXO
QSL via: reports VK4MAP Direct (our listing: VK4MAP, direct)
425DXN wcal #1847
QSL via: reports direct to VK4MAP (our listing: VK4MAP, direct)

C21DA news & updates

Last confirmed on by NG3K ADXO.

  • First reportedNG3K ADXO
  • Update425 DX News
    Operation extended until 5 October 2026. IOTA reference: OC-031.
  • UpdateDX-World.net
    C21DA is active from Naoero, with VK4MAP operating. Activity has been mainly on 40m and 10m SSB.
Last updated on 01 Nov 2026