ARRL 10-Meter Contest

Photo  PJ2T

Objective: For Amateurs worldwide to exchange QSO information with as many stations as possible on the 10 meter band.

Online Log Submission: Participants can now submit their Cabrillo-formatted contest logs via the web.  A new online log submission web page can be used to upload your log as a file or by copy-and-pasting the log text into a text window.  The log will then be checked for proper formatting and completeness before uploading to the log-checking database. You will then receive a confirmation number and a confirming email.  If any errors or discrepancies are discovered, they will be clearly labeled so that you can fix the log and try again.  The email log submission process is still available if you prefer to use that method and all accepted logs will be listed on the ARRL Logs Received page.

Contest Details

1. Object: For Amateurs worldwide to exchange QSO information with as many stations as possible on the 10 meter band.

2. Date and Contest Period: Second full weekend of December. Starts 0000 UTC Saturday; ends 2359 UTC Sunday (December 14-15, 2019)

2.1. All stations operate no more than 36 hours out of the 48-hour period.

2.2. All off-times must be a minimum of 30 consecutive minutes (see General Rule 3.15)

2.3. Listening time counts as operating time.

3. Entry Categories:

Note: Mixed-mode entries – read rule 6.5

3.1. Single Operator (use of spotting networks is NOT PERMITTED):

3.1.1. QRP (5 watts or less) Mixed Mode (Phone and CW) Phone only CW only

3.1.2. Low Power (150 watts or less) Mixed Mode (Phone and CW) Phone only CW only

3.1.3. High Power (1500 watts or less or your country’s maximum power limit, whichever is less) Mixed Mode (Phone and CW). Phone only. CW only.

3.2. Single Operator Unlimited: The use of spotting assistance or automated, multi-channel decoders is permitted.

3.2.1. QRP (5 watts or less) Mixed Mode (Phone and CW) Phone only CW only

3.2.2. Low Power (150 watts or less) Mixed Mode (Phone and CW) Phone only CW only

3.2.3. High Power (1500 watts or less or your country’s maximum power limit, whichever is less) Mixed Mode (Phone and CW). Phone only. CW only.

3.3. Multioperator, Single Transmitter (use of spotting networks is permitted):

3.3.1. Low Power (150 watts or less)

3.3.2. High Power (1500 watts or less or your country’s maximum power limit, whichever is less)

3.3.3. This category is mixed-mode only.

4. Contest Exchange:

4.1. W/VE stations (including Hawaii and Alaska) send RS(T) and state or province (District of Columbia stations send signal report and DC).

4.2. DX stations (including KH2, KP4, etc) send RS(T) & sequential serial number starting with 001.

4.3. Mexican stations transmit RS(T) and their state.

4.4. Maritime mobile stations send RS(T) and ITU Region (R1, R2 or R3).

5. Scoring:

5.1. QSO points:

5.1.1. Two points for each complete two-way phone QSO.

5.1.2. Four points for each two-way CW QSO.

5.2. Multipliers: (counted once on phone and once on CW).

5.2.1. Each US state and the District of Columbia.

5.2.2. Canada: 14 provinces – See Appendix A at bottom for complete list.                  

5.2.3. Mexico: 32 states – see Appendix B at bottom for complete list.

5.2.4. DXCC countries (except US, Canada and Mexico). KH6 and KL7 participate and count as US states, not DXCC Entities.

5.2.5. ITU regions (maritime mobiles only).

5.3. Final Score: Multiply QSO points by total multipliers (the sum of states/VE provinces/Mexican states/DXCC countries/ITU regions per mode).

Example: KA1RWY works 2235 stations including 1305 phone QSOs, and 930 CW QSOs, for a total of 6330 QSO points. She works 49 states, 10 Canadian call areas, 23 DXCC entities and a maritime mobile station in Region 2 on phone for a total of 49+10+23+1 = 83 phone multipliers. On CW she works 30 states, 8 Canadian call areas, and 19 DXCC countries for a total of 30+8+19 = 57 CW multipliers.  Her final score = 6330 QSO points x (83+57) multipliers = 6330 x 140 = 886,200 points.

6. Miscellaneous:

6.1. Single Operator Mixed-Mode and Multioperator stations may work stations once per mode.

6.2. Your call sign must indicate your DXCC country if competing as DX. (N6TR in Oregon does not send N6TR/7, but K1NO in Puerto Rico must send K1NO/KP4 or KP4/K1NO)

6.3. All entrants may only transmit one signal at any given time; alternating CQs on two or more frequencies using the same band and mode is prohibited.

6.4. All CW contacts must take place below 28.3 MHz.

6.5. Stations that enter a mixed-mode category may change modes at any time.

6.6. Each claimed contact must include contemporaneous direct initiation by the operator on both sides of the contact. Initiation of a contact may be either locally or by remote.

7. Awards: Certificates will be awarded to:

7.1. The highest-scoring Single Operator station (in each category) from each ARRL/RAC Section, Mexican state and DXCC country.

7.2. Top Multioperator entries (in each category) in each ARRL Division, Canada, Mexican state and each continent.

7.3. Additional certificates will be awarded as participation warrants.

8. Miscellaneous:

8.1. All logs generated by computer must be in Cabrillo format – an  online log data entry form is available to create Cabrillo files.

8.2. Hand-written paper logs are acceptable submissions.

8.3. All entries must be  uploaded, or postmarked by 2359 UTC December 22, 2019.

8.4. Cabrillo log files require exchange sent, category entered, power, and ARRL/RAC section, as defined in the General Rules for All ARRL Contests.

8.5. Computer-generated logs not in Cabrillo file format may be designated as check logs.

8.6. Paper entries must be mailed to 10 Meter Contest, ARRL, 225 Main St, Newington, CT 06111.

8.7. Paper entries must be submitted on current ARRL entry forms or an acceptable facsimile.

8.7.1. Forms are available by downloading the 10 Meter Contest Summary Sheet and the 10 Meter Contest Log Sheet.

8.7.2. Forms are available for an SASE sent to the Contest Branch.

8.8. See “General Rules for All ARRL Contests” and “General Rules for ARRL Contests on bands below 30 MHz (HF).”

APPENDIX A: List of the 14 Canadian multipliers:

NB – New Brunswick (VE1, 9)
NS  – Nova Scotia (VE1)
QC  – Quebec (VE2)
ON – Ontario (VE3)
MB  – Manitoba (VE4)
SK  – Saskatchewan (VE5)
AB – Alberta (VE6)
BC – British Columbia (VE7)
NWT  – Northwest Territories (VE8)
NF – Newfoundland (VO1)
LB  – Labrador (VO2)
YT  – Yukon Territory (VY1)
PEI  – Prince Edward Island (VY2)
NU  – Nunavut (VYØ)

Appendix B:  List of the 32 Mexican States (View Map)

Aguascalientes (AGS)
Baja California (BAC)
Baja California Sur (BCS)
Campeche (CAM)
Chiapas (CHI)
Chihuahua (CHH)
* Ciudad de México (CMX)* — DF became CMX in January 2016
Coahuila (COA)
Colima (COL)
* Distrito Federal (DF or DFE) — is now CMX per above…
Durango (DGO)
Estado de México (EMX)
Guanajuato (GTO)
Guerrero (GRO)
Hidalgo (HGO)
Jalisco (JAL)
Michoacán (MIC)
Morelos (MOR)
Nayarit (NAY)
Nuevo León (NLE)
Oaxaca (OAX)
Puebla (PUE)
Querétaro (QRO)
Quintana Roo (QUI)
San Luis Potosí (SLP)
Sinaloa (SIN)
Sonora (SON)
Tabasco (TAB)
Tamaulipas (TAM)
Tlaxcala (TLX)
Veracruz (VER)
Yucatán (YUC)
Zacatecas (ZAC)



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