The Multi-Operator Single-Transmitter category covers a wide span of interests.  At the lower levels, it is a few friends enjoying radio together for the weekend.  At the top levels, it combines all of the strategy, competitive drive, and expense of Formula 1 car racing! With such a broad range, we wanted to understand how the participants feel about the current rules.

Q.  Have you ever operated in the Multi-Operator Single-Transmitter category in the WPX Contest?

Answer Count Percent
Yes 1275 32.8%
No 2614 67.2%

It was bit suprising to see such a large difference.  This could be a result of only sending surveys to the email address of the log submitter and not to each operator in the team.

Q.  Should the rules for the Multi-Operator Single-Transmitter category be changed?

For this question, we looked only at those who answered Yes to operating in the multi-single category.

  Count Percent
10-minute rule with multiplier station (no change) 496 38.9%
10-minute rule 151 11.8%
Band changes per hour 433 34.0%
Don’t care 132 10.3%
Other 63 4.9%

An interesting result!  One that shows a lot of momentum in keeping the current rules, but also shows there is interest in a simpler alternative.


  • The rule should be only one transmitter. Not transmitted signal. Enforcement is tricky but that is true on a lot of things.
  • Having a multiplier station available to operate makes it much more interesting for the team as a whole. Going to a pure single Tx model would be a backward step.
  • Only one transmitter connected and operational at any time — additional transmitters allowed on the premises but must be disconnected from power and/or antenna.
  • The operation per hour brings more security against cheats, with outcomes that can be more real.
  • Dump the second xmtr – ‘single transmitter’ should be single transmitter. Then you can dispense with any band-change rules.
  • I lean toward keeping rules as simple as possible.
  • 10 band changes/hr = 6minute rule
  • This can be confusing in the heat of the moment
  • I range between “10-minute-rule w/ mult station” and “10-minute-rule”. Reason: if “w/mult station” then the M/S category needs a setup like a M/2-station, and real Multi-OP-Single-TRANSMITTER (only one trx at all) are handicaped. I’d prefer a clear possibility for single TRANSMITTERS and then the M/2-Class. But on the other hand, the M/S-Class as is right now is very interesting also, and it would be pity to lose this class. This is a difficult decision and I hope you will find a good solution.
  • 10-minute rule with multiplier station is the best improvement since previous rules change. Very good thing for strategy and active band scanning for second operator.
  • Band changes / hour provide much flexible operation.
  • When we say Multi-Operator Single-Transmitter, you mean many persons & 1 TR. By saying multiplier station you give the right to every body to have 5 stations looking all together for multiplier. When you say Single-Transmitter, I mean ONLY 1 TR and not 2nd-3rd-4th-5th stations for multipliers.
  • Abolir regla de los 10 minutos, libertad de cambios en bandas para la multiplica-dora
  • Time to get rid of the 10 min rule period! SINGLE TRANMITTER is just what it says.
  • MultiSingle with Mult station is a 2 TX Multi
  • This is all to complicated to keep up with so would never try to operate this category
  • I love the logistic for all our operators to fullfill this rule 
  • Why limit band changes at all??? I never understood the reasons for this rule.
  • SINGLE TRANSMITER means just that — NOT TWO RADIOS. If the entrant wants to use two radios great— just put them in a different category.
  • I can live with any of them, though band changes per hour is probably easier to keep track of than the current rule.
  • My wish: After M/2 was introduced, M/S should be changed to *one* radio only. Small stations with only one operating position can´t compete in the M/S category right now. Stations with two operating positions should change to M/2, which is more fun anyway…

As you can see, there are very strong opinions on all sides!

The WPX Committee is carefully considering a change to the Multi-Single category rules for 2010. We believe that the addition of the Multi-Two category several years ago has created an imbalance.  There are essentially three multi-transmitter categories! There is currently no place for a station with only one radio to compete.  Almost any top level Multi-Single station can easily step up to the Multi-Two category. This gives us the opportunity to make an adjustment in the rules to create more opportunity for more stations.

The choice is:

1. Keep the multi-single rules as they are.  [A run station and a multiplier station each on its own 10-minute timer.]

2. Change the multi-single rule to allow 8 or 10 band changes per hour. [Only one transmitter which could change bands xx times during each hour. This would also match the rules for the WPX RTTY Contest.]

Please add your comments below or write to me ( before November 1. I want to hear your opinion!  Rule changes for 2010 will be announced before the end of November 2009.



7 thoughts on “Survey Results #3 – Multi-Single

  1. There is not enough difference between the current MS and M2 to warrant two separate categories, especially at the expense of not having a true MS category. Eliminate the mult transmitter in MS and change the 10-minute rule to 8 or 10 band changes/hour.

  2. Multi-Single must mean just what it has been created for – SINGLE transmitter ! Allow 8 – 10 band changes per 1 hour and make things right. If someone wants to use more transmitters there is M/2 or M/M categories. Bring back chance for those with limited resources, who like to get together as a group, to be competitive in their category and finally have real fun.

  3. I’ve been working in MS category plenty of time since early 70’s and think it’s best to leave it as it is with one exception, allow more band changes per our than 10 minutes rule allows. Going back to “pure” one transmitter category will open door to cheating. What will be the difference between SO assisted and MS? What the other operator will do while first is transmitting? Listening on second TRX? And than when it’s time to band change not transmit on it? Think about it before you’ll do any changes.
    73, es Waldemar Kuna, SM0TQX

  4. We need as least 10 band changes per hour in the M/S and M/2 class. I have a small station with 2 TXR’s it get boring when a band dies and you stuck on band.
    73, Wayne N2WK

  5. M/S implies two or more people sharing one station .. one at a time. Change the 10 minute rule to say only one OPERATOR can transmit in any 10 minute window. Allow SO2R.

    No mult station. Only ONE operating chair.

    Sometimes you need to rely on the honor system. Not all rules are strictly enforceable by computer screening of the log. CQP allows this now and it has worked well.

  6. Better for M/S will be change in multiplier system calculation. It means mults for each band separately like CQ WW. It brings more contest activity on each band, not only in actualy opened main bands like 20 or 40 in dependence on current HF propagation conditions.

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