

Ten-Ten International Net, or 10-10 for short, is an organization of amateur radio operators dedicated to maintaining high levels of amateur radio communications on the 10-meter amateur band (28.0-29.7 MHz). Established in 1962, 10-10 has grown continuously since that day, with some ups and downs according to the numbers of sunspots and the openness of the band. As you read this, the number of 10-10 numbers issued to members now exceeds 75,000. 10-10 would welcome your membership in the organization if you have an amateur radio license with 10-meter privileges. The Gateway Chapter
The Gateway Chapter Membership is primarily from the greater St. Louis, MO metroplex. Our Chapter was formed in 1972 by Don Wirth, WB0ECM #3218, and we are very proud of the number of consecutive Net Sessions (Currently 1625 - every Wednesday for over 31 years!) that have been held. The Chapter meets every Wednesday evening on 28.650 MHz (+/- QRM) at 2000 Local Time (Thursday, 0100Z Summers and 0200Z Winters). We conduct informal, "open" nets and all amateur radio operators are cordially invited to attend for the purpose of exchanging ten-ten numbers and for general rag chewing. How To Join The Gateway Chapter
Membership in the Gateway Chapter is available to any ham who has a 10-10 number and who resides within ground wave range of the St. Louis area. We also offer a certificate (but not Gateway membership) to other 10-10 members who contact and exchange 10-10 data (10-10#, Call Sign, Operator's Name, Contact Date, City and State/Country) with five (5) Gateway members. How To Join 10-10 International
Any licensed amateur authorized to operate on the 10 meter band can join 10-10. It is required that you contact 10 10-10 members (on 10 meters), listing their information as noted on the Membership Application form (10-10#, Call Sign, Operator's Name, Contact Date, City and State/Country). US amateurs send their completed Membership Application and required dues payment to the Data Manager, 10-10 International Net, Inc., 643 North 98th Street, #142 Omaha, NE 68114-2332. DX amateurs should send the application to the DX Call Area Manager, Carol Hugentober, K8DHK, #29588, 4441 Andreas Avenue, Cincinnati, OH 45211-2622, U.S.A. DX amateurs: Please remember that dues must be paid in US dollars and by International Postal Money Order only. The Data Manager will assign you a 10-10 number and send it to you along with your new member package. 10-10 Contests
Each year, 10-10 sponsors 2 CW contests and 2 phone contests to encourage maximum cordial activity on the 10-meter band. In addition, there is a 10-10 Day 24-hour Sprint. A 10-10 QSO Party brochure is available from the Information Manager or the Contest Manager. A summary of pertinent information for the remaining 2003 contests is as follows:
Upcoming Contests of Local Interest
July 2003
Midwest Area Eyeballs, Swapfests and Hamfests
August 23, 2003 Missouri State Convention - Central Missouri Radio Association, Columbia, MO Information about additional upcoming events in the region will be listed in this category as it becomes available. If you know of some upcoming events of interest to midwest amateurs that should be posted here please let us know. Contact Scotty, W9VHL by E-mail (kdscott@sbcglobal.net) or by LL at 314.822.1573.
Jan Alvestad's Remarks & Forecast (http://www.dxlc.com/solar/):
Propagation Forecast
This Site Last Revised July 31 2003 at 11:34 UTC
Favorite Links
[The NEW 10-10 International Home Page]
The cost is only $1.00 for a lifetime membership! Send your contact information along with one dollar (non-recurring) to our Certificate Manager, Henry Schaper, KA0AWS, 241 Tapestry Dr., St. Louis, MO 63129 and Henry will send you a handsome non-propagating Gateway Chapter Certificate suitable for framing. A rare bargain indeed!
Summer (Phone) Contest, August 2-3, 2003
10-10 Day Sprint, October 10, 2003
Fall (CW) Contest October 25-26, 2002
Please note that during 10-10 contest periods, 10-10 members are requested to have the courtesy to observe a "quiet zone" between the frequencies of 28.490 and 28.510 MHz for non-contesters to use.All 4 regular 10-10 contests begin at 0001 UTC on the first listed date and close at 2400 UTC on the second listed date. The 10-10 Day Sprint is, of course, a 1-day contest.

Russian RTTY WW Contest, 0000Z, Jul 26 - 2400Z, Jul 27
Black Sea 2m VHF FM Contest, 1100Z, Jul 26 - 1100Z, Jul 27
IOTA Contest, 1200Z, Jul 26 - 1200Z, Jul 27
Kentucky QSO Party, 1600Z, Jul 26 - 0400Z, Jul 27
August 2003
10-10 Int. Summer Contest, SSB, 0001Z, Aug 2 - 2400Z, Aug 3
European HF Championship, 1000Z - 2159Z, Aug 2
North American QSO Party, CW, 1800Z, Aug 2 - 0600Z, Aug 3
ARRL UHF Contest, 1800Z, Aug 2 - 1800Z, Aug 3
SARL HF CW Contest, 1300Z - 1600Z, Aug 3
WAE DX Contest, CW, 0000Z, Aug 9 - 2359Z, Aug 10
Maryland-DC QSO Party, 1600Z, Aug 9 - 0400Z, Aug 10 and 1600Z - 2359Z, Aug 10
Six Club Perseids Meteor Shower Contest, 2300Z, Aug 12 - 2300Z, Aug 14
SARTG WW RTTY Contest, 0000Z - 0800Z, Aug 16 and 1600Z - 2400Z, Aug 16 and 0800Z - 1600Z, Aug 17
ARRL 10 GHz Cumulative Contest, 0600 local - 2400 local, Aug 16 and 0600 local - 2400 local, Aug 17
Keyman's Club of Japan Contest, 1200Z, Aug 16 - 1200Z, Aug 17
SEANET Contest, CW/SSB/Digital, 1200Z, Aug 16 - 1200Z, Aug 17
North American QSO Party, SSB, 1800Z, Aug 16 - 0600Z, Aug 17
New Jersey QSO Party, 2000Z, Aug 16 - 0700Z, Aug 17 and 1300Z, Aug 17 - 0200Z, Aug 18
ALARA Contest, 0600Z, Aug 23 - 1159Z, Aug 24
Hawaii QSO Party, 0700Z, Aug 23 - 2200Z, Aug 24
TOEC WW Grid Contest, CW, 1200Z, Aug 23 - 1200Z, Aug 24
SCC RTTY Championship, 1200Z, Aug 23 - 1159Z, Aug 24
NRRL 75th Anniversary Contest, 1200Z, Aug 23 - 1200Z, Aug 24
Ohio QSO Party, 1600Z, Aug 23 - 0400Z, Aug 24
SARL HF CW Contest, 1300Z - 1600Z, Aug 24
CQC Summer QSO Party, 1800Z - 2359Z, Aug 24
YO DX HF Contest, 1200Z, Aug 30 - 1200Z, Aug 31
[Scoring and other details at the ARRL or SM3CER Contest sites. (See Favorite Links below.)] 
August 24,2003 St. Charles Amateur Radio Club's Hamfest, American Legion Post 312, 2500 Raymond Drive, St. Charles, MO
October 25, 2003 Halloween Hamfest, Kirkwood Community Center, Kirkwood, MO 7:30AM-1:00PM

Recent developments:
"The geomagnetic field was active to minor storm on July 30. Solar wind speed ranged between 701 and 980 km/sec under the influence of a high speed stream from coronal hole CH49.
Solar flux measured at 20h UTC on 2.8 GHz was 98.7. The planetary A index was 29 (STAR Ap - based on the mean of three hour interval ap indices: 29.6).
Three hour interval K indices: 44554444 (planetary), 45543343 (Boulder).
The background x-ray flux is at the class B1 level.
At midnight there were 3 spotted regions on the visible disk. Solar flare activity was moderate. A total of 1 C and 1 M class events was recorded during the day.
Region 10420 was quiet and stable.
Region 10421 did not change much and was quiet.
Region 10422 decayed fairly quickly after the M flare and has only a minor chance of producing another M flare. Flares: C2.2 at 02:20 and M2.5/1B at 04:10 UTC.
Coronal mass ejections (CMEs):
July 28-30: No potentially geoeffective CMEs observed.
Coronal holes:
Coronal hole history (since late October 2002)
Compare today's report with the situation one solar rotation ago: 28 days ago 27 days ago 25 days ago
A large coronal hole (CH49) in the southern hemisphere - an extension of the southern polar coronal hole - was in a geoeffective position on July 24-29. A coronal hole (CH50) in the northern hemisphere will likely be in a geoeffective position on August 4-5.
Forecast:
The geomagnetic field is expected to be quiet to minor storm until August 1 due to a high speed stream from coronal hole CH49, quiet to unsettled is likely on August 2-6. A high speed stream from coronal hole CH50 will likely cause unsettled to active conditions on August 7-8.
Long distance low frequency (below 2 MHz) propagation along east-west paths over high and upper middle latitudes is useless and will likely remain useless to very poor until August 2. Propagation along north-south paths is fair and expected to remain fair until August 2. [Trans Atlantic propagation conditions are currently monitored every night on 1470 kHz. Dominant station tonight: Radio Cristal del Uruguay. A post local sunrise opening brought Uruguay on 610 kHz and Argentina on 590 kHz.]
(c) 1998-2003 Gateway Chapter 10-10 International.
All rights reserved.
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