podxsov1yel PODXS Ø7Ø CLUB
 psk31_dog

31 Flavors

2010 31 FLAVORS CONTEST

Phase Shifting where no contest has Phase Shifted before!

When:

Saturday, 10 April 2010 from 12:00-18:00 your local time [not Universal Time].  This is a rolling start across the globe that should give opportunity to all who play.

Who:

All licensed radio amateurs.  Look for Ø7Ø Club members in the event.  Learn about this esteemed association on its web page: www.podxs070.com

Why:

To have a contest where participants get to play with PSK variants.  The PSK 31 Flavors Contest is an exciting warm-up for the TARA Skirmish multi-mode contest.

Categories:

The Contest will have three separate entry categories:

QRP: Maximum power not exceeding 5 watts
Low: Maximum power not exceeding 20 watts
Medium: Maximum power not exceeding 100 watts

Modes:

Use the following 5 PSK mode variants -

  • BPSK 31 [Narrow bandwidth]
  • QPSK 31 [Narrow bandwidth]
  • BPSK 63 [Wide bandwidth]
  • QPSK 63 [Wide bandwidth]
  • BPSK 125 [Very wide bandwidth]

Note that permitted mode definitions have been changed since last year.

These mode variants are available in popular software such as MixW and the free MultiPSK software package from F6CTE.  See the following website: http://multipsk.eqth.info/ Thanks to Patrick, F6CTE, for expanding the PSK universe!

Frequencies:

20 Meters only

- normal PSK sub-band for narrow mode variants,

- sub-band 14072.5 - 14080 kHz suggested for wide bandwidth mode variants.

Some of the contest mode variants are relatively wide.  Please allow sufficient room between your signals and those of your fellow PSK explorers.  Certainly give plenty of room to civilians in the accepted PSK and RTTY sub-bands.

Exchange:

For Ø7Ø Members – State/Province/DXCC Entity + Ø7Ø member number

For Non-Ø7Ø Members - State/Province/DXCC Entity + Name

Suggested Contest Call:

'CQ CQ PSK 31 Flavors de Your Call k'

It may be useful to call CQ in BPSK 31, indicating which mode variant will follow. I mean, I'm not sure we'll be able to recognize all those traces yet, will we...

'CQ CQ PSK 31 Flavors de Your Call - switching to <Mode Variant> k'

Score:

Calculate claimed scores as follows --

QSO Points: 1 point per station contacted

Contacts counted once per PSK mode variant

For example, K8IJ contacts N3DQU as follows:

  • - Once in BPSK 31
  • - Once in QPSK 63
  • - Once in BPSK 125

K8IJ and N3DQU can count 3 QSO points for these contacts

Multipliers: 1 multiplier for each State/Province/DXCC Entity in each mode variant

Count the number of US States, Canadian Provinces and DXCC countries (S/P/Cs) worked in each mode variant.

KH6 and KL7 count both as states and as separate DXCC entities.  Be sure to count US and Canada as DXCC entities.

For example, K8IJ makes the following contacts:

  • - 25 States/Provinces/DXCCs in BPSK 31
  • - 15 States/Provinces/DXCCs in BPSK 63
  • - 10 States/Provinces/DXCCs in QPSK 31

K8IJ can count a total of 50 multipliers for these contacts.

Total Score: QSO Points X Multipliers

The wise contester will use as many PSK mode variants as possible!

Logs:

Submit logs and claimed scores to This e-mail address is being protected from spambots. You need JavaScript enabled to view it

If you encounter any problems with this Email address, you may send your entry to This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Include in your Email the following information:

  • - Station Call
  • - Name
  • - Mailing Address
  • - Email address
  • - Ø7Ø Number (if you are a member)
  • - Entry Category
  • - Number of QSOs
  • - Number of S/P/DXCC multipliers for each mode variant
  • - Claimed Score

Please include logs as an attachment.  Logs should include, for each QSO:

  • - Date/Time (UT)
  • - Call
  • - Mode Variant
  • - Exchange

Logs may be in any of the following exchangeable formats - TXT, ADIF, DOC, XLS, CBR, WPD, CSV

Deadline for submission of Logs is: May 10, 2010.

Awards:

Certificates will be awarded to the top scorer in each category.

All Ø7Ø members participating and submitting logs will receive endorsements.

Questions:

Any questions, contact:

Harvey, K5PAX - PSK Flavormeister at: This e-mail address is being protected from spambots. You need JavaScript enabled to view it or This e-mail address is being protected from spambots. You need JavaScript enabled to view it