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The Art of Doubles $16.99 Take Your Doubles Game to the Next Level! Whether you're trying to improve your doubles game or are just getting started playing tennis with a partner, The Art of Doubles is the book for you. Author Pat Blaskower is your personal coach, guiding and encouraging you and your partner to play winning tennis by showing you how to: choose a compatible partner determine your jobs on the court learn poaching skills communicate with each other and opposing teams maintain mental toughness use various formations and strategies pick your shots intelligently decide where to play: tournaments or leagues and much, much more! The book also includes detailed court diagrams that show you how to execute offense, defense, and tactical plays; checklists that summarize the most important points of each chapter; and on-court drills to help you improve and refine your skills. The Art of Doubles is loaded with practical, proven tennis strategies that you can put to work immediately to see improvements in your own doubles game!

Doubles $15.95 Slow Smith is in a slump. He's a professional tennis player stuck in his hometown, serving to an empty court. His wife is in a coma and he's afraid he's to blame. Left behind are her Polaroids, obsessive daily records of their life together. Meanwhile Kaz, Slow's lifelong doubles partner, is traveling the world while playing with someone new. Then one afternoon his old coach Manny appears in a dumpy Fiat convertible and persuades Slow to get in. When they return to Forest Hills -- the site of a six-year winning streak -- they reunite with old friends who call up long-buried desires and reveal a secret that threatens to destroy Slow's marriage as well as his friendship with Kaz. Slow just can't win -- and especially not back on the court. Turns out Kaz can't either. Theirs is a bond driven as much by odd habits as by shared life experiences -- a marriage not unlike the one rendered comatose -- and the only way to get their lives back on track is by playing together again. At once hilarious and heartbreaking, Doubles serves up a tale of melancholy and redemption -- both on the court and off.

Tennis Doubles Beyond Big Shots with Companion Video $28.5 Tennis Doubles Beyond Big Shots with Companion Video

Doubles Troubles $14.43 DOUBLE THE TROUBLE, DOUBLE THE FUN. Is it a game, set, match for Henry?Henry wants to win the doubles tennis trophy more than anything...

Competitive Club Doubles Video (Copyright 2001) (VHS) $24.95 Now you can learn from the most famous and successful coach in tennis! Nick Bollettieri has developed and coached many of the world's top players, including Andre Agassi, Monica Seles, Boris Becker, Mary Pierce, Tommy Haas, and Anna Kournikova. His teaching techniques and effective coaching methods have formed the foundation for these videos, letting you share in his world-renowned knowledge. Designed for tournament-style competitive doubles play, this video addresses every component of successful doubles, from choosing the right partner to warm-up, communication, and match strategy. Competitive Club Doubles explains all the court positions and advanced formations, and where, when, why, and how you and your partner should use them. About the Author Nick Bollettieri is the most well-known and successful tennis coach in the world today, and his training program is recognized as one of the best systems for developing top players. He has trained and coached some of world's top players including Andre Agassi, Monica Seles, Anna Kournikova, Jim Courier, Tommy Haas, Mary Pierce, and Boris Becker. Bollettieri has built one of the best training facilities in the world, the Nick Bollettieri Tennis Academy, which he founded in 1977. Now known as the Bollettieri Sports Academy, the facility covers 158 acres and has become the most successful and diversified multi-sport training complex in the world. The success of his academy can be seen in the success of his students. His training system is recognized worldwide as one of the best. Bollettieri started out as a club tennis coach in the 1950s and once worked as a private coach for the Rockefeller family while serving as the director of tennis for all Rockefeller-owned hotels and resorts. He founded his first tennis academy, the Port Washington Tennis Academy on Long Island, New York, in 1969. In 1999, The United States Tennis Association (USTA) named Nick Bollettieri the United States Olympic Committee (USOC) National Coach of the Year. He is a regular contributor to Tennis magazine. Bollettieri resides in Bradenton, Florida.

Doubles Tennis Tactics Video-NTSC $19.76 Improve your doubles play with the same patterns used by pros...

Doubles Tennis Tactics $14.96 This book is in New - Excellent condition

Doubles Tennis Tactics DVD $28.03 No Synopsis Available

Doubles Tennis Tactics Video - NTSC (VHS) $26.95 Improve your doubles play with the same patterns used by pros. Developed in conjunction with the International Tennis Federation (ITF) and one of the world's top doubles coaches, the Doubles Tennis Tactics Video is the perfect learning vehicle for any dedicated doubles player with a strong desire to improve. On-camera expert Louis Cayer has presented his workshop on tennis doubles at ITF conferences on five continents in front of tennis federation leaders from more than 100 countries. In the Doubles Tennis Tactics Video he presents complete coverage of the most effective patterns and strategies for every critical aspect of the game: Team strategy Serving Receiving Poaching Movement Positioning Top international pros demonstrate the patterns in Davis and Federation Cup play. Cayer describes the responsibilities of each player by position, followed by sample drills to help viewers practice and reinforce the correct patterns. Cayer teaches how to implement advanced doubles skills, including movement and shot selection patterns. The drills progress in difficulty right up to specific game situations. If you're serious about improving your doubles play, use the Doubles Tennis Tactics Video to learn the patterns used by the pros. Once you learn these patterns, you'll have everything you need to perfect your game and enjoy it more. About the Author Louis Cayer is known within the tennis community as one of the best doubles coaches in the world. He is the head national coach of Tennis Canada, the former Canadian Davis Cup captain, a member of the International Tennis Federation (ITF) coaching committee, and was the Canadian Olympic coach for the 2000 gold medal-winning men's doubles team. Cayer has presented his workshop on tennis doubles at ITF conferences on five continents in front of tennis federation leaders from more than 100 countries. He is responsible for the Tennis Canada Coaching Certification System, and he has worked with some of the world's highest-ranked men's doubles players, including the 1993 number one player, Grant Connell, and 2000 Olympic gold medallists Sebastien Lareau and Daniel Nestor. In 1996, players coached by Cayer were on three of the world's top five teams. Cayer and his wife, Pauline Lafreniere, live in Quebec, where Cayer, in addition to serving as head national coach, serves as general manager of the Nuns' Island Tennis Club. In his leisure time he enjoys walking in nature, reading on personal growth and spiritual literature

Formations $10.44 Formations

Mixed Doubles $4.16 When Natalie Crawford is offered the job as manager of a tennis club in a wealthy English suburb, she jumps at the chance. There's an extra perk, too: Paul, the club's coach, is handsome and charming, and she wastes no time in making him her lover. Then she hires Chris, a coach from a rival club, whose confidence and sexual prowess swiftly puts Paul in the shade. Natalie cannot believe the tactics Chris uses to get female club members to improve their game. And when he embroils Natalie into his kinky sex capers, will she be able to keep control of her business aims, or will her lust for the arrogant sportsman get out of control?

Doubles Tennis Tactics NTSC Video $28.03 No Synopsis Available

Stan Smith''s Winning Doubles $16.68 Let one of the all-time great tennis doubles players improve your game! Stan Smith, a highly respected pro player and the coach of the men''s U.S...

Doubles By Brown, Nic $22.63 Tennis player Slow Smith is either wallowing in selfpity or mourning the virtual loss of his wife, who is in a coma after a car accident. Slow?so named for his excruciatingly deliberate service routine?was half of a successful professional doubles team that won the U.S. Open at Forest Hills six times. Old coach Manny arrives at Slow?s house uninvited, and the pair head to Forest Hills where they will meet up with Slow?s longtime doubles partner, Kaz. Life has continued for Kaz since the accident; he?s playing with a new partner. But the former partners are still connected, if not as tightly as before. Back in the familiar tennis world, Slow and Kaz attempt to reconnect, both professionally and personally, but things have changed. Slow is different. Of course he is: his wife?s in a coma, and he blames himself for the accident. The past is his milieu; Kaz is moving forward. Author: Brown, Nic Publication Date: 2010/06/15 Number of Pages: 227 Binding Type: Paperback Language: English Depth: 0.50 Width: 5.50 Height: 8.25

CABLE CONSIDERATIONS FOR 1080P/50

Have you heard about 1080p/50?  This is the ‘next step' in video.  It is double the resolution, and double the bandwidth, of 1080i or 720p HD-SDI.  Surprisingly, it is sowing up on the consumer side more than it is on the professional side.  You can easily buy an LCD or other display, or a projector, that will show 1080p/50.  You can also buy a BluRay player that will produce a 1080p/50 signal – assuming you inserted a 1080p/50 disc.  There are a few dozen of those available.

 

One thing that doesn't exist is a  way to broadcast such a signal.  Oh, the standards groups are working on it.  And, hopefully, what they finally produce will be backward-compatible with SD-SDI and HD-SDI.  1080p/50 is sometimes called "3g" because is uses a 3 GHz clock producing a 3 Gbps data stream. (This is sometimes confused with 3rd generation "3g" cell phones.)

 

If you're interested in going to 1080p make sure it is 50 frame.  There are cameras that will also shoot 1080p/25.  While this is a standard theatrical frame rate, it is half the bandwidth of 1080p/50, back to the same bandwidth as HD-SDI.  But, you might well ask, why would anyone want to shoot in 1080p/50?  Well, there are a number of very good reasons.

 

REASON #1.  When 1080p/50 becomes a standard, everything you already shot in that format will be more saleable.  You can sell it again!  You can extend the life of the content you are producing.

 

REASON #2.  Murphy's Law says that, if you shoot today in 1080i, your first customer will want that content in 720p.  And, if you shoot in 720p, you will have a customer who wants 1080i.  You can convert between these formats, but not very well.  Especially with high-motion content (sports, racing etc.) it is extremely difficult to convert from one format to the other.  You end up with a tennis ball that is a yellow streak across the net!  But if you shoot in 1080p/50, you can down-convert to 720p or 1080i without losing anything, without software trying to figure out where that fast-moving content is going. So you can sell your 1080p/50 content as 720p or 1080i, and when 1080p/50 becomes commercially viable, you can sell it again.

 

The downside to 1080p/50 is, first of all, more expensive equipment.  This may change after a few years, but right now it's expensive.  And while there are inexpensive cameras (such as RED) that can produce 1080p/50, or even higher resolution, you have to add on equipment and software to record the signal, edit the signal, add graphics and so on. No doubt about it, 1080p/50 is an expensive alternate.

 

 

 

There are a number of camera manufacturers who offer their 1080p/50 cameras with dual-link cables.  That is, you simply use two standard HD cables to deliver the signal.  However, there are digital cables (such as Belden's entire line) which are tested and verified to carry an entire 1080p/50 signal.

 

When you analyze the 1080p/50 signal, however, you will see why many manufacturers of equipment and cable, cannot measure up.  The clock is 3 GHz, the data rate is 3 Gbps, but the occupied bandwidth (the Nyquist Limit) is half the clock (1.5 GHz).  To assure that this data will pass through equipment, cable or connectors, these have to be tested to the third harmonic of 1.5 GHz or 4.5 GHz. 

 

If you want to find out what the problem is, just talk to your local test equipment vendor and ask him for something to test 75Ω cable up to 4.5 GHz.  They will tell you there is no such thing…at least not at 75Ω.  Network analyzers and other test gear often go up to 10 GHz or 20 GHz or even higher.  But that's at 50Ω.  Testing a 75Ω cable as 50Ω is something less than accurate.

 

In order to get these analyzers to work at 75Ω means you have to purchase a balun, a matching network, to match the 50Ω analyzer to the 75Ω cable (or whatever you are testing).  And those are simply not available above 3 GHz.  So most manufacturers test their 1080p/50 products to 3 GHz, the second harmonic.  Again, not as accurate as you might wish.

 

Data Rate:

3.0Gb/s

Spec:

SMPTE 424M

Cable Part Number

1080p/50

 

Ft.

m

179DT

76

23

1855A*

154

47

1855P

127

39

1505A*

215

66

1505F

150

46

1506A*

91

28

1694A*

250

76

1694F

192

59

1695A

217

66

7731A

364

111

7732A

289

88

7732LL

354

108

 

Table 1

 

 

Manufacturers who wish to enter the real world of 1080p/50 must buy custom-built matching networks, which can cost many thousands of dollars.  And, if they only buy one or two, then obviously, they are not using these to test the cable except in the lab.  The best cables out there have every metre tested, not just an occasional test in the lab.

 

The one serious consideration with 1080p/50 system designs and installation, is cable distance. Table 1 shows the ‘safe' distance for 1080p/50 (SMPTE 424M standard).  Note that with smaller cables, these distances can be significantly short, requiring the use of larger cables.  However, these distance are calculated from the SMPTE formula that states, when the signal is down -20 dB at half the clock (1.5 GHz), that's as far as the cable can go.

 

Many chip and equipment manufacturers complain about this limit and state, or show at tradeshows, cables going much farther, up to double the distance shown. This clearly shows that these distances are chip-dependent.  As chip designs improve, the distance achievable on any cable will also improve.  At the same time, manufacturing process for cable are also improving, so these distances shown are even more "conservative".

 

If you use this table, you will be very safe.  If you use the recommendations of chip or equipment manufacturers, be sure that you maximize the performance potential of every piece to maximize the performance of you system.

About the Author

Steve Lampen has been with Belden for 19 years and currently is Multimedia Technology Manager and Product Line Manager for Entertainment Products.  He has an FCC Lifetime General License (formerly an FCC First Phone License) and is a BICSI Registered Communications Distribution Designer. His latest book "The Audio-Video Cable Installer's Pocket Guide" is published by McGraw-Hill.

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