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The ARRL Contest Update

May 3, 2017
Editor: Brian Moran, N9ADG


IN THIS ISSUE
 *  New HF Operators: A Single Log QSO Party Triple-Play
 *  Bulletins
 *  Contest Summary
 *  News: ContestUniversity.com's Facelift, Yasme PR, Thailand Advanced
    Amateurs Get 1KW, and more
 *  Word to the Wise: Control Operator
 *  Sights and Sounds: Pictures from the IDXC, GigaParts Las Vegas Store
    Opens, RSGB YOTA video logs, and more
 *  Results: WRTC Sponsored Team Selection Complete, ARRL 160 Contest
    Results Article on Website, and more
 *  Operating Tip: Use Public Logs to Your Advantage
 *  Technical Topics and Information: Conference Proceedings from N.E.W.S.
    Group, New Type of Aurora, Toroids, and more
 *  Quote of the Week
 *  Conversation: Bits and Pieces - The Advancing Age of Radio People
 *  Contests
 *  Log Due Dates


NEW HF OPERATORS - THINGS TO DO

May 6-7 is a big QSO Party weekend. With the New England QSO Party, 7th Call
Area QSO Party, Indiana QSO Party, and Delaware QSO Party on the same weekend,
even with poor conditions there will be stations to work. Some logging programs
 will help you use one log to enter more than one contest - N1MM+ logger, for
example, has a special "IN7QPNE" state QSO party type, for simultaneous logging
 of Indiana, 7QP, and New England QSO Parties. The same Cabrillo log can be
entered for all three QSO parties. Don't forget to visit the web pages for the
contests to make sure you're aware of any rule changes, and to have up-to-date
abbreviations for county names.


BULLETINS


BUSTED QSOS


CONTEST SUMMARY

Complete information for all contests follows the Conversation section

4 May - 17 May 2017

May 4

 *  CWops Mini-CWT Test
 *  NRAU 10m Activity Contest

May 5

 *  NCCC RTTY Sprint
 *  NCCC Sprint

May 6

 *  Araucaria VHF Contest
 *  10-10 Int. Spring Contest, CW
 *  SBMS 2.3 GHz and Up Contest and Club Challenge
 *  Microwave Spring Sprint
 *  F9AA Cup, PSK
 *  ARI International DX Contest
 *  7th Call Area QSO Party
 *  Indiana QSO Party
 *  FISTS Spring Slow Speed Sprint
 *  Delaware QSO Party
 *  New England QSO Party

May 7

 *  New England QSO Party

May 10

 *  Phone Fray
 *  CWops Mini-CWT Test
 *  RSGB 80m Club Championship, Data

May 11

 *  CWops Mini-CWT Test

May 12

 *  NCCC RTTY Sprint
 *  NCCC Sprint

May 13

 *  Jakarta DX Contest 40m
 *  Portuguese Navy Day Contest
 *  HPC World Wide DX Contest
 *  SKCC Weekend Sprintathon
 *  VOLTA WW RTTY Contest
 *  CQ-M International DX Contest
 *  Arkansas QSO Party
 *  MARAC County Hunters Contest
 *  FISTS Spring Unlimited Sprint
 *  50 MHz Spring Sprint

May 14

 *  MARAC County Hunters Contest
 *  WAB 7 MHz Phone
 *  UA2 QSO Party

May 15

 *  4 States QRP Group Second Sunday Sprint

May 17

 *  Phone Fray
 *  CWops Mini-CWT Test


NEWS, PRESS RELEASES, AND GENERAL INTEREST

ContestUniversity.com has a new look and updated content. This year's event is
only days away but you can whet your appetite by viewing some of the
presentations from 2016 that have been posted to the website. Don't forget the
rich assortment of other contesting related activities that will take place at
the Crowne Plaza Hotel, Dayton, Ohio May 17 - May 20. The ContestSuperSuite.com
 website has a page devoted to contest related activities related to the
Hamvention.


According to a May 1 Yasme Foundation press release (PDF): "Yasme has been a
frequent supporter of Contest University (CTU). Earlier this year the Board
made a grant to CTU to facilitate the attendance of Dr. Tamitha Skov at this
year's Dayton Hamvention CTU session. Dr. Skov is a Research Scientist at The
Aerospace Corporation in Los Angeles, California and is a frequent lecturer in
the fields of solar and space physics. She makes regular "Spaceweather TV"
presentations on her YouTube channel. Dr. Skov is one of the Professors at the
2017 CTU in Ohio and her talk is entitled "The Wonderful World of Space
Weather." The same Yasme Press release also announced support of the 2017
Youngsters On The Air event in London, as well as other support for youth
involvement in Amateur Radio in the United Kingdom.


Thailand recently created a new class of licensee, the "Advanced" class,
equivalent to the US Extra. According to an email message by Charles Harpole,
HS0ZCW, and as shown on the Radio Amateur Society of Thailand website, Advanced
 Class licensees are now able to use up to 1 KW, after obtaining a 1KW station
license.


The DFW Contest Group and the Lone Star DX Association announce the 2017 DFW DX
 & Contest Forum to be held on Friday, June 9 and Saturday, June 10 in
conjunction with Ham-Com at the Irving Convention Center in Irving, Texas. The
2017 DFW DX & Contest Forum includes 16 presentations on Friday and Saturday
and is highlighted with a luncheon on Saturday featuring our special guest Tim
Duffy, K3LR. Tim will present on "The Evolution and Future of Contesting" at
the luncheon. Tim will also be presenting at 1:00 PM on Friday on "Station
Design for HF". All presentations from all speakers are included in your
standard admission to Ham-Com, however, the luncheon admission will be $25 and
includes a light boxed lunch and raffle entry for door prizes. (Eric, NM5M)


The North Hills Amateur Radio Club (NHARC) will be commemorating the Martian
New Year with a special event station in Mars, PA, on May 6, 2017, as part of
the event. The Martian New Year only happens every couple of years, Earth-time.
 Though the town features a 'mid century modern' looking gen-you-wine flying
saucer, the activities on May 4 - May 6 are focused around STEAM (Science,
Technology, Engineering, Arts and Mathematics) activities, and will include
NASA participation. Look for their call, K3M, on 20 and 40 meter phone. QSLs go
 to K2MA. (Tim, K3HX)


The FCC is changing some of the rules of the Part 95 Personal Radio Service.
Among the changes in the GMRS, FRS, and CBRS services is a relaxation of the
restriction of CBRS contacts greater than 155.3 miles and allowance of wireless
 (hands free) microphones with CBRS equipment.


VOACAP.com has a new feature to predict paths to upcoming DXpedition locations.

The HF propagation prediction software VOACAP, Voice of America Coverage
Analysis Program is the focus of the independent website VOACAP.com. The
website has a section where you can plug in your grid locator, and you'll get a
 series of charts predicting propagation for current and upcoming DXpeditions.


WORD TO THE WISE

Control Operator

"An amateur operator designated by the licensee of a station to be responsible
for the transmissions from that station to assure compliance with the FCC
Rules." The Control Operator ensures the "immediate proper operation of the
station, regardless of the type of control." One practical yet sometimes
overlooked implication for contesters is that the person operating the station
must stay within the privileges of their own license, unless a control operator
 with higher privileges is present and in active supervision of their
operation. An example: If the operator at a multi-op is a General Class
licensee in the Extra portion of the band, they must be operating under the
immediate supervision of an Extra class control operator. The control operator
cannot nap, leave the position to eat, go to the bathroom, or in any way not be
 present and in immediate control while the General class operator is exceeding
 the privileges of their license. See this ARRL web page for more guidance.


SIGHTS AND SOUNDS

Bob, N6TV, has shared his album of pictures from the 2017 International DX
Convention in Visalia, California. You'll see some well known DXers and
Contesters in the pictures. Bob's requirements as a contester translated into a
 product that he's sharing with the Amateur community - the Y-Box. It's a
four-way splitter and breakout box for the K3/K3S's ACC connector, to enable
easier connection of multiple accessories that need access to the band data or
other signals on the K3. With the ability to break out any particular signal on
 the ACC connector to an RCA jack, it can also handle special situations like
lockout configurations.


GigaParts just opened their retail store in Las Vegas, and ICOM tweeted some
pictures of the event.


See what the RSGB Youngsters on the Air (YOTA) are planning for their 2017
gathering in Gillwell Park, UK, August 5-12, 2017 in their Video Logs (VLOGS).
According to the website, over 80 people under the age of 26 from IARU Region 1
 (plus Japan) will be representing their national amateur radio societies. This
 will be the seventh year of the "summer camp" for Amateur Radio.


ARRL Field Day is coming soon. This "operating event" is not really deemed a
contest, but Field Day is what you make of it. How about getting some newbies
involved? Here's an ARRL Field Day promotional video that may help you "sell"
it to some non-Amateurs.


The first Harvard Amateur Radio Symposium occurred Saturday, April 29. The Yale
 University club, W1YU, published a report on the event including a link to the
 presentation materials on YouTube. Of particular interest may be the Youth
Involvement in Amateur Radio Roundtable event.


Quote of the Week

From Craig, K9CT, from his presentation at the International DX Conference:
"Lightning protection only minimizes damage."


RESULTS AND RECORDS

With the selection of team 4 and 5, all of the sponsored teams for WRTC 2018
have now been selected. Andrei Ruse, YO3JR and Ivo Pezer, E73A are the leaders
of sponsored teams 4 and team 5, respectively. According to the WRTC 2018 post
on Facebook "Numerous excellent applications reached the committee. We are sure
 the selected teams will play an important role in the 2018 championship and
will fight for top places." Here's a list of the sponsored teams:

Team 1: Rick, N6XI and Andy, AE6Y/P49Y

Team 2: Bud, AA3B and John, W2GD

Team 3: Tim, K3LR and Sandy, DL1QQ

Team 4: Andrei, YO3JR, team leader

Team 5: Ivo, E73A, team leader

The results article for the 2016 ARRL 160 meter contest has been published to
the ARRL website. In addition to the results, you can read about VY1AAA's
operation which provided that sometimes-elusive "NT" multiplier.

The CQWW Contest Facebook page is buzzing with comments on their post of the
list of stations disqualified for rules violations. You've likely also seen the
 lively discussion on the CQ-Contest email reflector.

Kelly, N0VD, tweeted the URL of the CQWW Rates Statistics Page. The best
60-minute rates are shown by entry category, as calculated from the public logs
 submitted to the CQWW Contest.

The 2017 running of the Florida QSO Party was last weekend - their 20th
anniversary. If you participated, make sure to get your logs submitted. The
2016 and earlier Florida QSO Party (FQP) results and write-ups are available on
 the website.


OPERATING TIP

Use Public Logs to Your Advantage

Some contests, like the CQWW, make all submitted logs "public" as a condition
of entry to their contest. That's an opportunity to learn from the stations
that bested you in the last contest. You can just read the logs to understand
when band changes occurred, when the other guys got that multiplier that eluded
 you, or even find unusual band openings or paths. You can also take advantage
of log analysis tools to help you compare your log versus logs of your peer
group to get additional insights.


TECHNICAL TOPICS AND INFORMATION

Proceedings from the recently concluded forty-third annual Eastern
VHF/UHF/Microwave conference are available via order from the North East Weak
Signal Group website. CDs from other years are also available. In 2018, the
conference will be held April 20-22 in Manchester, Connecticut. (Paul, W1GHZ)

A new form of aurora may have been 'discovered.' Amateur scientists took
pictures of ribbon like phenomena occurring well away from any polar regions,
and posted them on social media. Professional researchers initially thought the
 occurrences to be proton arcs, but something didn't look quite right.
Realizing that one picture coincided with a fly-through of a European Space
Agency Swarm Satellite, E-field data were examined by researchers, and they
noted at 300 km above the Earth's surface an elevated temperature level of 3000
 degrees C, in a flow of gas moving at about 6 kilometers per second. This new
type of aurora has been nick-named 'Steve' in honor of the children's movie
Over the Hedge.

Frank, W3LPL, offered up a link to IN3OTD's reviews of various transformers
used for 160 meter receive antennas: "...a nice complement to the other RF
design websites familiar to top band station builders." IN3OTD also has a
performance comparison of different common mode choke configurations. (Frank,
W3LPL, via TopBand reflector)

Jim, K9YC, found that Fair-Rite is making a new, larger sized #31 material
toroid core. Each four-inch part 2631814002 weighs nearly 15 ounces, and
according to Jim, "This relatively new Fair-Rite part ...offers the potential
for many more turns and/or larger cables. The mechanical properties are
obvious. I would expect one of these cores to be approximately equivalent to
two of the 2.4-in O.D. toroids that we've been using and that I've measured. My
 basis for that is that their thickness dimension (the length of cable going
through the core) is twice that of the smaller core. Inductance is proportional
 to the length of that path. Thus, three of these cores should be equivalent to
 six of the smaller ones." Current lead times for these parts are approximately
 14 weeks. (Jim, K9YC)

Maybe it could be named "Highlander?" Gallium arsenide semi-conductors may be
better than quantum dots for constructing Single Photon Emitters. The ability
to control photons is important for all types of quantum information
processing, and advances in quantum computing are thought to have general
applicability in signal processing.



CONVERSATION

Bits and Pieces: The Advancing Age of Radio Persons

At the International DX Convention in Visalia, California last weekend, many
well known DXers and Contesters were in attendance. Many social encounters
eventually came around to the discussion of the graying of our members. During
the Saturday banquet, a sit-down poll of the room yielded 37 years as the age
of the youngest Amateur in attendance.

One vendor of HF radio products at the vendor fair shared some demographic
information regarding their website traffic which suggested that fully 65% were
 aged 55 or above. Perhaps the numbers would be different for a vendor with a
different product mix.

Frank, NF8M, forwarded me an article about a gathering for Amateurs at the
National Association of Broadcasters meeting in Last Vegas. The caption for the
 picture associated with the article was sure to mention that the room
consisted of males over 50 years of age. The article went on to suggest that
those in attendance were the industry drivers, the seasoned professionals, with
 titles like 'Chief Technology Officer,' 'Sound Engineer,' or the
simultaneously laudatory and inadvertently ageist 'Senior Engineer'.

We all nod and agree that it's important to get more and younger people into
Amateur Radio, but the diversity of interests in all that is Amateur Radio
doesn't encourage a single solution to the problem. To achieve the goal of
having younger people in contesting, we're going to at least have to start with
 younger people.

One 'funnel point' by age is school. It's probably not realistic to expect
Amateur Radio to become part of any official curriculum, but there are
teachers, faculty, parents, grand parents, and radio clubs that actively
encourage school radio clubs. You can look at the results of the ARRL School
Club Roundup to see some of the schools with active radio clubs, such as the
Schofield Middle School in Aiken, South Carolina. The North Augusta Belvedere
Radio Club sponsors that club, and seems to be doing a good job of it. What's
the special sauce that the club provides? According to Ken, KQ4KK (excerpted
from the October 5, 2016 Contest Update) "We have four Elmers from the sponsor
club, North Augusta-Belvedere Radio Club, K4NAB, that help all year long. When
not doing SCR, we spend time soldering, desoldering, making satellite contacts,
 operating PSK-31, foxhunting, working with electronic training kits called
'Snap Circuits' for theory and practical circuits, spend a little time on
license prep, and even do some CW training." That seems like a good outline of
activities, and indicates the dedication required to achieve success.

The Amateur Collegiate Radio Initiative aims to foster increased activity at
the post-high school level. Some of the known challenges facing some existing
college / university radio clubs include outmoded or neglected equipment,
antennas, or cabling, lack of continuity from year to year, lack of
recognition. Can your radio club spare some cycles to help a radio club? If
your alma mater has a club, what are they up to and how can you help?

Next time you have a conversation where you're lamenting how old our hobby is
getting, make an effort to encourage concrete ideas about what you can do
personally to foster the interests of a younger crowd.

That's all for this time. Remember to send contesting related stories, book
reviews, tips, techniques, press releases, errata, schematics, club
information, pictures, stories, blog links, and predictions to
contest-update@arrl.org

73, Brian N9ADG



CONTESTS

4 May - 17 May 2017

An expanded, downloadable version of QST's Contest Corral in PDF format is
available. Check the sponsor's Web site for information on operating time
restrictions and other instructions.


HF CONTESTS

CWops Mini-CWT Test, May 3, 1300z to May 3, 1400z, May 3, 1900z to May 3,
2000z, May 4, 0300z to May 4, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10m;
Member: Name + Member No., non-Member: Name + (state/province/country); Logs
due: May 6.

NRAU 10m Activity Contest, May 4, 1700z to May 4, 1800z (CW), May 4, 1800z to
May 4, 1900z (SSB), May 4, 1900z to May 4, 2000z (FM), May 4, 2000z to May 4,
2100z (Dig); CW, SSB, FM, Digital; Bands: 10m Only; RS(T) + 6-character grid
square; Logs due: May 18.

NCCC RTTY Sprint, May 5, 0145z to May 5, 0215z; RTTY; Bands: (see rules);
Serial No. + Name + QTH; Logs due: April 30.

NCCC Sprint, May 5, 0230z to May 5, 0300z; CW; Bands: (see rules); Serial No. +
 Name + QTH; Logs due: April 30.

10-10 Int. Spring Contest, CW, May 6, 0001z to May 7, 2359z; CW; Bands: 10m
Only; 10-10 Member: Name + 10-10 number + (state/province/country), Non-Member:
 Name + 0 + (state/province/country); Logs due: May 22.


F9AA Cup, PSK, May 6, 1200z to May 7, 1200z; PSK; Bands: 80, 40, 20, 15, 10,
2m; RST + Serial No.; Logs due: June 6.

ARI International DX Contest, May 6, 1200z to May 7, 1159z; Phone, CW, RTTY;
Bands: 160 (no RTTY), 80, 40, 20, 15, 10m; I: RS(T) + 2-letter province, non-I:
 RS(T) + Serial No.; Logs due: May 12.

7th Call Area QSO Party, May 6, 1300z to May 7, 0700z; CW, Phone, Digital;
Bands: 160, 80, 40, 20, 15, 10, 6, 2m; 7th Area: RS(T) + 5-letter state/county
code, non-7th Area: RS(T) + (state/province/DX); Logs due: May 17.

Indiana QSO Party, May 6, 1500z to May 7, 0300z; Phone, CW; Bands: 160, 80, 40,
 20, 15, 10m; IN: RS(T) + county, non-IN: W/VE: RS(T) + (state/province), DX:
RS(T) + "DX"; Logs due: June 1.

FISTS Spring Slow Speed Sprint, May 6, 1700z to May 6, 2100z; CW; Bands: 80,
40, 20, 15, 10m; FISTS: RST + (state/province/country) + first name + FISTS
No., non-FISTS: RST + (state/province/country) + first name + power; Logs due:
June 5.

Delaware QSO Party, May 6, 1700z to May 7, 2359z; CW, Phone, Digital/RTTY;
Bands: 160, 80, 40, 20, 15, 10, VHF; DE: RS(T) + County, non-DE: RS(T) +
(state/province/country); Logs due: June 6.

New England QSO Party, May 6, 2000z to May 7, 0500z, May 7, 1300z to May 8,
0000z; Phone, CW/Digital; Bands: 80, 40, 20, 15, 10m; CT, ME, MA, NH, RI, VT:
RS(T) + county + state, non-NE: RS(T) + (state/province/"DX"; Logs due: June
6.

Phone Fray, May 10, 0230z to May 10, 0300z; SSB; Bands: 160, 80, 40, 20, 15m;
NA: Name + (state/province/country), non-NA: Name; Logs due: May 12.

CWops Mini-CWT Test, May 10, 1300z to May 10, 1400z, May 10, 1900z to May 10,
2000z, May 11, 0300z to May 11, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10m;
Member: Name + Member No., non-Member: Name + (state/province/country); Logs
due: May 13.

RSGB 80m Club Championship, Data, May 10, 1900z to May 10, 2030z; RTTY, PSK;
Bands: 80m Only; RST + Serial No.; Logs due: May 11.

NCCC RTTY Sprint, May 12, 0145z to May 12, 0215z; RTTY; Bands: (see rules);
Serial No. + Name + QTH; Logs due: April 30.

NCCC Sprint, May 12, 0230z to May 12, 0300z; CW; Bands: (see rules); Serial No.
 + Name + QTH; Logs due: April 30.

Jakarta DX Contest 40m, May 13, 1000z to May 13, 2200z; SSB; Bands: 40m Only;
RS + Serial No.; Logs due: May 20.

Portuguese Navy Day Contest, May 13, 1100z to May 20, 2300z; CW, SSB, Digital;
Bands: 80, 40, 20, 15, 10m; NRA Club: RS(T) + Member No., non-member: RS(T) +
QSO No.; Logs due: June 4.

HPC World Wide DX Contest, May 13, 1200z to May 14, 1159z; BPSK63; Bands: 80,
40, 20, 15, 10m; HPC Members: RST + 3-digit HPC member number, non-HPC: RST +
3-digit QSO No.; Logs due: June 15.

SKCC Weekend Sprintathon, May 13, 1200z to May 15, 0000z; CW; Bands: 160, 80,
40, 20, 15, 10, 6m; RST + (state/province/country) + Name + (SKCC No./"NONE";
Logs due: May 21.

VOLTA WW RTTY Contest, May 13, 1200z to May 14, 1200z; RTTY; Bands: 80, 40, 20,
 15, 10m; RST + QSO No. + CQ Zone; Logs due: May 31.

CQ-M International DX Contest, May 13, 1200z to May 14, 1159z; CW, SSB; Bands:
160, 80, 40, 20, 15, 10m; RS(T) + Serial No.; Logs due: June 13.

Arkansas QSO Party, May 13, 1400z to May 14, 0200z; CW, Phone, Digital; Bands:
80, 40, 20, 15, 10, 2m; AR: RS(T) + County, non-AR: RS(T) +
(state/province/"DX"; Logs due: May 27.

MARAC County Hunters Contest, May 13, 1400z to May 14, 0000z, May 14, 1400z to
May 15, 0000z; CW; Bands: 80, 40, 20, 15, 10m; RST + (state+county/"DX"; Logs
due: June 30.

FISTS Spring Unlimited Sprint, May 13, 1700z to May 13, 2100z; CW; Bands: 80,
40, 20, 15, 10m; FISTS: RST + (state/province/country) + first name + FISTS
No., non-FISTS: RST + (state/province/country) + first name + power; Logs due:
June 12.

WAB 7 MHz Phone, May 14, 1000z to May 14, 1400z; SSB; Bands: 40m Only; British
Isles: RS + serial no. + WAB square, Other: RS + serial no. + country; Logs
due: June 4.

UA2 QSO Party, May 14, 1300z to May 14, 1659z; CW, SSB; Bands: 80, 40, 20m;
UA2: RS(T) + RDA ID, non-UA2: RS(T) + Serial No.; Logs due: June 14.

4 States QRP Group Second Sunday Sprint, May 15, 0000z to May 15, 0200z; CW,
SSB; Bands: 160, 80, 40, 20, 15, 10m; Member: RS(T) + (State/Province/Country)
+ Member No., Non-member: RS(T) + (State/Province/Country) + Power; Logs due:
May 31.

Phone Fray, May 17, 0230z to May 17, 0300z; SSB; Bands: 160, 80, 40, 20, 15m;
NA: Name + (state/province/country), non-NA: Name; Logs due: May 19.

CWops Mini-CWT Test, May 17, 1300z to May 17, 1400z, May 17, 1900z to May 17,
2000z, May 18, 0300z to May 18, 0400z; CW; Bands: 160, 80, 40, 20, 15, 10m;
Member: Name + Member No., non-Member: Name + (state/province/country); Logs
due: May 20.


VHF+ CONTESTS

Araucaria VHF Contest, May 6, 0000z to May 7, 1600z; CW, SSB, FM; Bands: 6, 2m;
 RS(T) + 6-character grid square; Logs due: May 17.

SBMS 2.3 GHz and Up Contest and Club Challenge, May 6, 0600 (local) to May 7,
2359 (local); Any; Bands: 2.3 GHz and up; 6-character Maidenhead locator; Logs
due: June 1.

Microwave Spring Sprint, May 6, 0800 (local) to May 6, 1400 (local); not
specified; Bands: All above 902 MHz; 6-character grid square; Logs due: May 20.

50 MHz Spring Sprint, May 13, 2300z to May 14, 0300z; not specified; Bands: 6m
Only; 4-character grid square; Logs due: May 27.

Also see F9AA Cup, PSK, 7th Call Area QSO Party, SKCC Weekend Sprintathon,
Arkansas QSO Party above.


LOG DUE DATES

4 May - 17 May 2017

May 4, 2017

 *  ARS Spartan Sprint

May 5, 2017

 *  Phone Fray

May 6, 2017

 *  CWops Mini-CWT Test

May 7, 2017

 *  SP DX RTTY Contest
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 * Origin:  (1:3634/12.73)