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Contests and Awards Committee
(RAC-CAC)
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Frequently Asked Questions (FAQs)

Mapping Contest Categories to Cabrillo Input Fields

 Description Official Category CATEGORY-OPERATOR  CATEGORY-MODE CATEGORY-BAND CATEGORY-POWER CATEGORY-TRANSMITTER  NOTES / Comments
Single Op All Band High Power SOABHP SINGLE-OP MIXED ALL HIGH ONE Mixed mode only
Single Op All Band Low Power SOABLP SINGLE-OP MIXED ALL LOW ONE Mixed mode only
Single Op QRP All SOABQRP SINGLE-OP MIXED ALL QRP ONE Power defines the category so any QRP entrant is assigned here for all band or single band.  Single mode (CW or SSB) falls into this category as well.
SINGLE-OP MIXED 2M QRP ONE SOABQRP SINGLE-OP MIXED 2M QRP ONE Power defines the category so any QRP entrant is assigned here for all band or single band.  Single mode (CW or SSB) falls into this category as well.
SINGLE-OP MIXED 6M QRP ONE SOABQRP SINGLE-OP MIXED 6M QRP ONE Power defines the category so any QRP entrant is assigned here for all band or single band.  Single mode (CW or SSB) falls into this category as well.
SINGLE-OP MIXED 10M QRP ONE SOABQRP SINGLE-OP MIXED 10M QRP ONE Power defines the category so any QRP entrant is assigned here for all band or single band.  Single mode (CW or SSB) falls into this category as well.
SINGLE-OP MIXED 15M QRP ONE SOABQRP SINGLE-OP MIXED 15M QRP ONE Power defines the category so any QRP entrant is assigned here for all band or single band.  Single mode (CW or SSB) falls into this category as well.
SINGLE-OP MIXED 20M QRP ONE SOABQRP SINGLE-OP MIXED 20M QRP ONE Power defines the category so any QRP entrant is assigned here for all band or single band.  Single mode (CW or SSB) falls into this category as well.
SINGLE-OP MIXED 40M QRP ONE SOABQRP SINGLE-OP MIXED 40M QRP ONE Power defines the category so any QRP entrant is assigned here for all band or single band.  Single mode (CW or SSB) falls into this category as well.
SINGLE-OP MIXED 80M QRP ONE SOABQRP SINGLE-OP MIXED 80M QRP ONE Power defines the category so any QRP entrant is assigned here for all band or single band.  Single mode (CW or SSB) falls into this category as well.
SINGLE-OP MIXED 160M QRP ONE SOABQRP SINGLE-OP MIXED 160M QRP ONE Power defines the category so any QRP entrant is assigned here for all band or single band.  Single mode (CW or SSB) falls into this category as well.
Single Operator All Bands CW only SOABCW SINGLE-OP CW ALL ANY ONE CW only. Mix of high or low power, no spearate classes based on power
Single Operator All Bands SSB only  SOABPH SINGLE-OP SSB ALL ANY ONE SSB only. Mix of high or low power, no spearate classes based on power 
Single Op Single Band 2M SOSB-2M SINGLE-OP MIXED 2M ANY ONE Mix of high or low power, no spearate classes based on power 
Single Op Single Band 6M SOSB-6M SINGLE-OP MIXED 6M ANY ONE Mix of high or low power, no spearate classes based on power 
Single Op Single Band 10M SOSB-10M SINGLE-OP MIXED 10M ANY ONE Mix of high or low power, no spearate classes based on power 
Single Op Single Band 15M SOSB-15M SINGLE-OP MIXED 15M ANY ONE Mix of high or low power, no spearate classes based on power
Single Op Single Band 20M SOSB-20M SINGLE-OP MIXED 20M ANY ONE Mix of high or low power, no spearate classes based on power
Single Op Single Band 40M SOSB-40M SINGLE-OP MIXED 40M ANY ONE Mix of high or low power, no spearate classes based on power
Single Op Single Band 80M SOSB-80M SINGLE-OP MIXED 80M ANY ONE Mix of high or low power, no spearate classes based on power
Single Op Single Band 160M SOSB-160M SINGLE-OP MIXED 160M ANY ONE Mix of high or low power, no spearate classes based on power
Multi-Operator Single Transmitter High Power MOSTABHP MULTI-OP MIXED ALL HIGH ONE Second transmistter allowed for multiplier station as per the rules
Multi-Operator Single Transmitter High Power MOSTABHP MULTI-OP MIXED ALL HIGH TWO Second transmistter allowed for multiplier station as per the rules
Multi-Operator Single Transmitter Low Power MOSTABLP MULTI-OP MIXED ALL LOW One Second transmistter allowed for multiplier station as per the rules.  Any QRP entrant that enters as a Multi-Op Single Transmitter will be classified as MOSTLP.
Multi-Operator Single Transmitter Low Power MOSTABLP MULTI-OP MIXED ALL LOW TWO Second transmistter allowed for multiplier station as per the rules.   Any QRP entrant that enters as a Multi-Op Single Transmitter will be classified as MOSTLP.
Multi-Operator Multiple-Transmitter Any Power MOMT MULTI-OP MIXED ALL ANY MULTI All MOMT of any power level will be placed in this category. Limit of one transmitted signal per band  at any one time.  

Category Notes

1.) Category of entry and Log contents
The contents of a log that is submitted for a specific category must reflect that category. In the event of a conflict between the actual content of the log and the stated category in the Cabrillo header or contained in other elements of the entry material, the actual contents of the log will be used to determine the category of entry where possible. In the event this cannot be determined or in the event where a log does not identify the entry category, the entry will be classified into the Multi-Operator, Multi-Transmitter, any authorized power category. Any entrant who wants to enter a specific category (i.e. Single band entry) but who also worked additional contacts outside that category may submit those additional contacts in a separate check log file. Do not include them in the main entered category log file.
2.) Power class assigned if not specified
Where the categories have a power class and the submitted log does not clearly identify the power class entered, then the log will be treated as if the  highest power class for that category was entered.
3.) No single op assisted category, entrants will be classified in A Multi-Single category
Single operators who receive assistance from a DX spotting system, including Skimmer and similar technologies or any type of Packet Cluster network during the contest must classify themselves as Multi-Single ops as there is no assisted category in the RAC contests.
4.) 10 minute rule for Multi-Single category
In the Multi-Single category only one transmitter and one band are permitted during the same time period (defined as 10 minutes). Exception: One, and only one, other band may be used during any 10-minute period, if and only if the station worked is a new multiplier. In other words, the Multi-Single Transmitter class allows a second station to “hunt” and work multipliers only on a single separate band during any 10-minute period.
5.) Multi-Multi - all band operation
Multi-Multi category stations may operate on all allowed bands simultaneously.
6.) Multi-Multi physical location requirement
For all multi transmitter categories, all transceivers, transmitters and receivers operated by the multi station participants/entrants must be within a single 500-metre diameter circle and the antennas must be physically connected by RF transmission lines to the transceivers, transmitters and/or receivers.
7.) Limitations of Distributed Multi-Multi or Multi-Single
Operators in either the Multi-Multi or Multi-Single categories should note that a distributed contest station is permitted in the RAC contests, however such operations are not eligible for plaques or awards. A distributed station is defined as a station which does not have all transceivers, transmitters and/or receivers operated by station operators/participants/entrants located within a single 500-metre diameter circle of each other. Distributed Multi  operations must identify such operations as part of their Cabrillo form log submission., usually in a SOAPBOX comment as the category descriptoin does not exist in the RAC Cabrillo specfications.  This classification is an accommodation during the COVID-19 pandemic and is not expected to be supported once the situation ends.
9.) SOSB Power Level notes in results
Although there is only one Single Operator Single Band category that qualifies for a certificate or award, it is intended that the published results would show High Power or Low Power. To facilitate this break out of the listings, your entry should indicate the power class you used.
10.) Operating limits for operators who participate in a Multi operation
Operators who have participated in any multi-operator category entries may not contact the station they have participated in if they were to operate as part of another entry in the same contest. In addition, guest operators at any station regardless of entry category may not claim contacts with the station host owner or host station mobile call for points or multipliers.
11.) Digital modes are not supported in RAC contests
The RAC contest do not include digital modes like RTTY, PSK, FT8, FT4 or other modes.  Traditionally such modes are supported in separate and dedicated contests and are outside the typical mixed mode contest that only supports SSB/CW modes.




Page last updated: May 08-2021