www.proradiocontestclub.com   
                                                     
                                         PRO DIGI CONTEST (PDC)  2027                                              
                                                                             8nd edition                                                                                        
                                                            Organized by PRO RADIO CONTEST CLUB
      From this year's edition onwards, the contests organised by the PRCC no longer include the M(Members) category.
                                
  1. Objectives
      Making radio QSOs with as many stations as possible in three digi-modes.
      With the same station, you can make three valid QSOs in each band, one in each mode (FT4, RTTY45 and PSK63)

  2. Contest Period
      Every year, the third full weekend of January.
      2027: January 16-17 from 12:00 UTC Saturday to 11:59 UTC Sunday.

  3. Bands
     80, 40, 20, 15, 10, ( Band segments allocated for the working modes used in the contest will be used). 
     Changing bands can only be changed after a break of at least five minutes
      For non-compliance with this provision of the competition regulations, the penalty applied each time will be 1% of the total score obtained. 

   4. Modes
     PSK63, FT4 and RTTY45. (in log mode it is noted like this: PSK63 with PK, FT4 with FT4 and RTTY45 with RY) and not otherwise.                 
     With the same station, QSOs can be made on each band in the three modes but only one contest log will be sent.
      Changing modes can only be changed after a break of at least five minutes.
     For non-compliance with this provision of the competition regulations, the penalty applied each time will be 1% of the total score obtained. 
 
  5. Contest call:  CQ PDC
 
  6. Categories: (The contest log header must contain one or more of the categories specified below in the contest rules):  
      "SO-HP", "SO-LP", "SO-80", "SO-40", "SO-20", "SO-15", "SO-10", "SO-PSK63", "SO-FT4", "SO-RTTY45", "C&T", "SWL", "CL
   
     The recommended program for this contest is:
     - N1MM Logger + for BPSK63 and RTTY45, from UDC we use the PCC_NM module .
     - MSHV (PRO DIGI Contest)  for the FT4 mode with Exch seting: DX     
     
       Competitors in all "SO" categories may also opt for one or more of the "SO" subcategories below if they have made a total of at least 100
       valid QSOs, and in each category at least 50 valid QSOs, which will will be confirmed following verification of the contest logs.
        "SO-HP" = a single operator, with at least two bands and two confirmed modes using a single TX with any authorized power for this modes,       
      
        "SO-LP" = a single operator, with at least two bands and two confirmed modes using a single TX with no more than 100 watts out),
       
        "SO-PSK63" = a single operator only BPSK63, regardless of the number of bands,   
        "SO-FT4"         = a single operator only FT4, regardless of the number of bands,
        "SO-RTTY45" = a single operator only RTTY45, regardless of the number of bands).                              

       SO-SB= a single operator, a single band, regardless of the number of modes and a single TX with any authorized power.
        "SO-80"  = a single operator, 80m, regardless of the number of modes,   
        "SO-40"  = a single operator, 40m, regardless of the number of modes,
        "SO-20"  = a single operator, 20m, regardless of the number of modes,   
        "SO-15"  = a single operator, 15m, regardless of the number of modes,
        "SO-10"  = a single operator, 10m, regardless of the number of modes,
       "C&T"  = All club stations regardless of the number of operators, modes and bands, as well as teams operated from the same location
        who will use a single callsign and TX on all bands, and the power is the authorized one.       
     
       "SWL"  = Short Wave Listeners, regardless of the number of bands and modes
       The same callsign may be logged once on each band and mode..

       "CL" = Check Log
            
   7. Contest Exchange:
      Competitors must transmit RSQ report + serial number, starting with 001  E.g. 599 001    

   8. Scoring
       QSO Points:
       1 points for QSO with own DXCC country
       2 points for QSO with another DXCC country
     
       Multiplier:
       Each WPX prefix different confirmed counts only once on each band,
       with the exception of all prefixes from your own country which does not count as a multiplier.
       The total score is represented by the sum of valid points from all bands and modes worked multiplied by
       the sum of the different prefixes confirmed.
     
     9.Prizes
        Shortly after the publication of the results, the certificates in PDF format will be found on the website of the contest at the
        PDC RESULT ARCHIVE for downloading and printing.
        (For prizes, CLAIM and UBN file, please indicate in the Cabrillo log your complete MAIL and EMAIL address.) 
  
                Information about all PRO RADIO CONTEST CLUB awards for PRO-DIGI-Contest
        
 10. Logs Instructions:
       Logs can be submitted until Sunday, 24 January, 2027 at 24:00 UTC to the address:      digi@proradiocontestclub.com
       A single contest log will be sent that will contain all the QSO's made in chronological order or those in FT4 they
       can be entered in the contest log at the end of log after the QSO's in RTTY and BPSK63.    
       In the log modes will be noted as follows: FT4 with FT4, RTTY45 with RY and BPSK63 with PM .
       DO NOT Submit contest log before  reading the  lines below.
        Only electronic logs are accepted, files in ASCII format, the Cabrillo format being preferred. Time is noted in UTC.
       Do not send the log as a .ZIP, ADI,or .JPG file. The CheckLog will also comply with the above requirements for cross-linking.
       Competitors' email will contain the attachment log.
       The email Subject line must include the contest name and the category or categories, for example: PRO DIGI CONTEST (SO-HP) or (SO-LP & SO-20)
       This is the only way you will receive automatic confirmation that your log has been received by the referee.
       The filename of the attached contest log must contain only the call sign, for example: YO1AAA 

       Logs sent after the deadline will be included in the NO LOG list and will not be verified.
      Logs will be sent to: digi@proradiocontestclub.com . Please also follow the RECEIVED LOGS page.
      If after 72 hours (but not sooner) you have not received the CLAIM file and you are not listed in the Received Logs list,
      please resend the contest log to the same address.If you are sending a new corrected or completed contest log, the address for this is:
      corrected-logs@proradiocontestclub.com . After the publication of the Final Results no changes can be made to the result, except in the
      case of refereeing errors or non-compliance with the contest rules. Do not send even Check Log. 

  11. Arbitration
        Dupes are contacts made with the same station on the same band. If the first contact between stations is valid, dupes      
        have zero points value. If the first contact is not valid, second  (dupe) contact is accepted. Dupe contacts are not penalized,
        so DUPES should not be marked or deleted.  
        If a competitor opts for a category to which the rules do not allow, the referee has the right to change the category according to the regulation.
      - if the log from the correspondent is not received, the respective QSO is canceled with the exception of callsigns that exist in at least fifteen logs
        received from at least three different countries,
      - if the QSO is not confirmed in the correspondent's log or the difference between the times in the logs exceeds three minutes, the QSO is canceled,
      - if there are mistakes in the call, incorrect RSQ or serial number, the QSO will be cancelled,
      - if the Band or Mode differs from the correspondent's log, the QSO will be cancelled,     
      - the penalty for not respecting the five minutes break when changing bands or working mode will affect the final total score with 1% each time,
        and you can find the list of penalties by clicking on the penalty score specified in the ranking.
      - also competitors from any category get 0 (zero) points or are disqualifield will be included in the Check Log (CL) category.

   12. Disqualification
         For cheating, using two TXs at the same time, imaginary loging, and clear repetitive and intentional violation of the contest rules.
         If the penalty applied to a competitor represents more than 50% of the total score obtained, he will be disqualified..
       
   13. The result of the contest
          The Provisional result will be posted on the site: www.proradiocontestclub.com  by Tuesday, January 26, 2027 at 10:00 UTC.
         If the EMAIL address was entered at the beginning of the contest log, all competitors will receive the CLAIM file after the log is verified and
         UBN after the provisional results is declared.
         Appeals will only concern possible refereeing errors and will be resolved by Tuesday, January 26, 2027 at 24:00 UTC.
         If your callsing is not in the provisional ranking, please let me know before publishing the final result..
         The final ranking is final and will be posted by Thursday, Januuary 28, 2027 at 10:00 UTC
                    
        The prizes for the PDC edition, will be sent only once between Mars and April of each year.
         Prizes destined for RUSSIA or BELARUS will be sent only if the winning contestant indicates by February 15 the address of a friend
         residing in one of the European countries to whom I should send the prize, or these prizes will be sent to the addresses of the
         Radio Federations in the respective countries after postal restrictions are lifted.
         In the past editions, some of these prizes were returned, and others were lost.
         14. Contest manager, referee and personaql sponsor is YO2RR 
           Revision date: 2026, Nov 10, at 03:15 UTC