C21MM Nauru

The German team is preparing for a DX expedition to Nauru, C21MM (IOTA OC-031). First days (10.-15. October) will be dedicated to the upper KV bands, then the whole team joins. Operation 5 stations will be on bands from 160m to 6m, CW, SSB, RTTY and FT8. The expedition ends 29. October 2024, so they will also participate in the CQ WW DX SSB contest.

Elecraft K3S transceiver
Elecraft K3S transceiver

Equipment C21MM

  • Elecraft K3/K3S/K4
  • Elecraft KPA 500, Expert 1,3k a 1,5k
  • microHAM MK-II
  • Pentaplexer 20m – 10m od LBS
  • Windows laptops
  • fiberglass masts 12m to 22m from Spiderbeam for vertical antennas with raised radials 160m – 30m
  • 5-band wire Beam LZAW10-5 20m – 10m
  • 10m HD aluminum telescopic mast from Spiderbeam
  • Dyneema ropes from DX-WIRE
  • Loop antenna 40m – 6m
  • 100-watt bandpass filter and high-performance bandpass filter from 160m to 6m
  • logging with UcxLog

Bandplan C21MM

CW SSB RTTY FT8
160m
1.822,5 1.839
80m 3.533 3.805  3.570
60m 5.354  5.356,9
40m 7.002 7.092 / 7.192 7.043 7.056
30m 10.102 10.143  10.133
20m 14.033 14.210 14.095  14.095
17m 18.085 18.130 18.106 18.095
15m 21.033 21.275 21.095  21.095
12m 24.905 24.955 24.925  24.911
10m 28.033 28.465 28.110 28.095
6m 50.105 50.125 50.313
 
Radio amateur operation with ICOM transceiver
Radio amateur operation with ICOM transceiver

These are the planned frequencies according to the band plans for individual regions, while they may change depending on the current situation on the band. They will broadcast with only one station on one band . We use the MSHV program on the announced frequencies (to 6 slots) pre FT8. I am DXP (fox) we will not use F/H mode and later we can also use normal FT8 frequencies. There is also an option to use SuperFox-WSJT-X.

All operators can call us in normal mode with locator/grid and stay on their frequency even when answering. Please, do not call us on our broadcast frequencies! All FT8 stations are operated manually, which allows optimal selection of callers, e.g.. for weak stations. The QSO will be logged, when we send RR73 or 73.

We try to upload our log daily. If in doubt, work with us again. During the expedition, logo corrections will not be possible. We always broadcast split! Avoid duplicate connections!

QSL-Manager DL4SVA

FX-4C transceiver in FT-8 operation
FX-4C transceiver in FT-8 operation

Please, use it OQRS on ClubLog C21MM for requests directly through the bureau, we don't need your QSL card.

For those, who do not want to use OQRS, they can send their QSL card either directly to our QSL manager DL4SVA, or through the German DARC bureau at DL4SVA.

Bureau: via DL4SVA
LoTW: activated 6 months after shipment
Directly: via DL4SVA UAE and postage, cash only - USD or EUR - NOTE: We do not accept IRC
Donations are gratefully accepted!
Please, don't ask for QSL in different ways!

Manager:

Georg Tretow – DL4SVA
Rehnaer Str. 8
D-23936 Grevesmuehlen
GERMANY

QSL policy

QSL cards will be printed to 6 weeks after returning. Don't forget to fix errors in the log after shipping to dl4sva (zav) darc.de.

Priority 1: All early donors (at least 10 USD/EUR) they will be published on our site and will receive a LoTW confirmation within four weeks of dispatch. A paper QSL card will automatically follow.

Direct OQRS (4 EUR via PayPal to dl4sva @ darc.de) requests including fast LoTW will be processed next.

Fast LoTW requests only for 2 USD or 2 EUR via PayPal are possible within four weeks.

Priority 2: When applying for paper cards by letter, attach 2 USD and a marked return envelope (SAE). IRC or coins, Please, do not send.

Priority 3: 6 months after the end of the expedition, we will start a free OQRS bureau QSL service and upload the entire log to LoTW.

eQSL is not accepted.

QSL requests with insufficient postage will be processed through the bureau.

Nauru

The coast of Nauru, island DX expedition C21MM
The coast of Nauru, island DX expedition C21MM

Nauru is a small island nation in the Pacific Ocean, the smallest independent republic in the world with an area of ​​only 21 km². It is located northeast of Australia and has approx 10 000 population. Nauru was once known for its rich phosphate deposits, which ensured his wealth in 20. century. However, the country's economy is currently facing challenges after the depletion of these resources. The island has no river and has to import most of its food and water.

Politically, Nauru is a parliamentary republic, which is a member of the UN and other international organizations. The island is also popular among radio amateurs, who often participate in DX expeditions here due to its isolation. Nauru offers beautiful beaches, but is a lesser known tourist spot, as only a small number of travelers visit it annually.

More information can be found on the C21MM DX Expedition page https://c21mm.mydx.de/?Welcome

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