Silent Key Memorial Contest. Echange: RST and a Silent Key Callsign. e.g. 599 G8FW

TARA SKIRMISH. Exchange: Name and Prefix (Area locator)

Skeeter Hunt. Skeeter Hunt 2020. Exch: RS(T) + S/P/C + SkeeterNr or Power. S/P/C are mults - once    Read More

Used for SKCC's K3Y EVENTS, WES. SKS and SKSE, by Jan Pieter Oelp, PA3CLQ (SK)  See SKCC.txt    Read More

Seanet Contest (Non-Seanet Countries)

Seanet  Contest. RST + Serial as exchange

Discontinued 2017 Scottish DX Contest

SARA  Spring Sprint. Exchange: RST, Locator and Class, Locator and WPXprefix are Mults.    for OM Stations.

10m SA SSB/CW Contest. Exchange:  RS(T) + CQ Zone.  Files in SA10.zip  updated 2022-03-14    Read More

Has Norwich NK and NR

RUS WW DIGI. This UDC file is FOR DX station!!! Exchange: RST, Serial Nr or Rus. Oblast

Last update - 2020-12-21. Cabrillo format was incorrect (RST was missing) - fixed. This file is for non Russian stations only.   Read More

DL RTC Party.  Exchange:  RST + RTCNumber + 4Character Grid. e.g. 599 999 JO45   Thanks df4xx.

RSGB AFS Contests. Exchange: RS(T) + Serial Number. 80/40 CW DATA SSB

RSGB 40m Contest. Exchange: RS+ Name. Discontinued

HF Smolensk region Cup.   Exch; RS(T)+SerNr.  Mults - Smolensk region.

For use with  R4C-CHAMP udc

Russian CW Club RPX Contest. Exchange: RST+SerNr, points are more for Russian Federation, Mults Rus Fed WPX Prefix once.    Read More

Russian CW Club 4 Seasons. Exchange: non-members - RST+SerialNr. Members send RST+5 letter group.

Championship of Astrahan oblast, Exchange: RS(T)+SerialNr. Astrakhan region stations give 10 bonus points.

R6H-Champ. Exchange: RS(T)+SerialNr.

R4C Champ Sa. Send: RS(T)+'RDACSA'.  RX RS(T)+SerialNr/RDACSA.  R4C_SA for R4C stations ONLY    Read More

R4C Champ nonSA. Send: RS(T)+Serial.   RX RS(T)+SerialNr/RDACSA

R3E-SC. Exchange: RST+SerialNr.+Grid.  Grid&Callsigns are mults.

R3A Cup DIGI Moscow Cup. Exchange: RST + RDA/Serial Number. Files in R3A_CDRTTY.zip

QRP HF RTTY. RST and CQ Zone as exchange.

QRP Fox Hunt. CW Only. Exchange RST/Location(State/Prov/DXCC Prefix)/Name/Power

POPOV-VHF. 2M only, serial # and GriqSquare as exchange, dupes are not allowed on same band CW, SSB and FM modes.    Read More

Popov Memorial. Exchange: RS(T) and NR (Years of Experience) as exchange.

PADANG DX ALL BAND CONTEST. Exchange: RS+SerialNr.  Tnx yb5boy

PW 144(June) and 70Mhz(Sept). Exchange: RS(T), Serial NR and Locator. 4 Digit Square is Mult. v1.0.1    Read More

Youth Cup POPOV. Exchange: Serial Nr + Last Serial Nr received, similar to LZ Open.

Podxs 070 Contest. Exchange Call, RST and S/P/C.  Use for PSK Festival, Jay Hudak Memorial, Pumpkin Sprint and Firecracker    Read More

Portuese Navy Day Contest. Exchange: PN Stations send PN+Number, Other Naval Club Members send club ID+Number, Non-Members send Serial Nr. See the Read_Me file.   Read More

PN Quick CW Contest. Exchange: PN Stations send PN Number, Others send Serial Nr.

Phone Fray. Exchange: Name, State/Province/DXCC.  S/P/C are mults.

SP PGA Contest.  Exchange: RS(T) Serial Nr. and Gmina as exchange. 80M only. Mode - CW,SSB, MIX.    Read More

SP PGA Contest. Exchange: RS(T) Serial Nr. (and Gmina) as exchange. 80M only. Mode - CW,SSB, MIX.    Read More

PARLA-CW. Exchange: RST+Prov&Dist.  Both are mults. With bonus points.  Tnx ea5fq

Danish Internal Series.

Sample UDC

OZCHR-VHF. VHF bands only, 6 char. GriqSquare as exchange, dupes are not allowed on same band different modes.

Original QRP. Serial # and Category (VLP, QRP or MP) as exchange. CW & SSB now allowed.

Old New Year Contest. Exchange: RS(T) and NR (Age of OP. plus Years of Experience) as exchange.  NR is score for QSO.   Read More

OKOM DX SSB Contest. Exchange: RS + Serial Number, OK & OM Stations send RS + County code(Mults+CQWW). Scoring is not the same as OKOM CW.   Read More

OK1WC Memorial. Exchange: RS(T) + Serial Number, Mult-last letter of callsign.

OHIO STATE PARKS On The Air. Exchange: Park/State/Dx.  Parks ID are Mults.