Leisure Time LX20 instruction manual

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NOTE: Instructions for the use of optional accessories are not included in this manual. For details in this regard, see the Meade General Catalog.

In the Schmidt-Cassegrain design of the Meade 8", 10", and 12" models, light enters from the right, passes through a thin lens with 2-sided aspheric correction ("correcting plate"), proceeds to a spherical primary mirror, and then to a convex aspheric secondary mirror. The convex secondary mirror multiplies the effective focal length of the primary mirror and results in a focus at the focal plane, with light passing through a central perforation in the primary mirror.

The 8", 10", and 12" models include oversize 8.25", 10.375" and 12.375" primary mirrors, respectively, yielding fully illuminated fields-of- view significantly wider than is possible with standard-size primary mirrors. Note that light ray (2) in the figure would be lost entirely, except for the oversize primary. It is this phenomenon which results in Meade 8", 10", and 12" Schmidt-Cassegrains having off-axis field illuminations 10% greater, aperture-for-aperture, than other Schmidt-Cassegrains utilizing standard-size primary mirrors. The optical design of the 4" Model 2045D is almost identical but does not include an oversize primary, since the effect in this case is small.

LX200 Schmidt-Cassegrain telescopes now feature new baffle tube designs. These computer-optimized designs incorporate a series of 7 to 11 (depending on the focal ratio and size of the LX200) internal field-stops to eliminate almost all internal reflections, yielding the best image contrast available in any Schmidt-Cassegrain available today.

The Meade 7" Maksutov-Cassegrain Optical System (Diagram not to scale)

The Meade 7" Maksutov-Cassegrain design optimizes imaging performance by utilizing a combination of two-sided spherical meniscus lens (right), a strongly aspheric f/2.5 primary mirror, and a spherical secondary mirror. The convex secondary mirror multiplies the effective focal length of the primary by a factor of six, resulting in an overall f/15 system at the Cassegrain focus.

The oversize 8.25" primary mirror results in a fully-illuminated (unvignetted) field of view significantly wider than can be obtained with Maksutov optics incorporating primary mirrors of the same aperture as their meniscus correcting lenses. Computer-optimized primary and secondary mirror baffles, as well as a sequence of field stops internal to the primary mirror baffle, yield lunar, planetary, stellar, and deep- space images of uncommonly high contrast and resolution.

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Contents Meade Instruments Corporation Page ¬ WARNING! ¬ Contents Introduction What Is the LX200? An OverviewStandard Equipment Inspecting the Optics What You Should HavePlease Look Everything Over Keypad Version NumberUse the following steps to assemble your telescope Telescope AssemblyField Tripod Attaching the Viewfinder Focusing the ViewfinderMounting the Viewfinder Collimating the ViewfinderQuick Start Using the LX200 ManuallyUsing the LX200 In Land Location of the Observing Site Using the LX200 In Altaz AltazimuthEntering Basic Information Setting Up the Telescope Local Time and DateUsing the Mode Key Which Alignment Method to Use? Library Object KeysUnknown Site Star AlignmentDirection Keys LX200 Keypad Hand ControllerLX200 Power Panel Mode Functions Page Page Backlash Object Library Menu File Enter Mode Four TIMER/FREQ a. Timer = Menu Option Mode Two COORDINATES/GO toMode Three CLOCK/CALENDAR Coordinates Menu File60.0 Hz Solar Average rate for tracking Planetary rate Mode Five Keypad OFF/BRIGHTNESS AdjustFor astrophotos Due to retrogradesMagnification Apparent Field and Actual FieldMagnification and Field of View Appendix a Equatorial Wedge Deluxe Latitude AdjusterEquatorial Wedge For 7 and 8 LX200 Azimuth ControlSuperwedge For 10 and 12LX200 Mounting the Telescope On the WedgeMagnetic Compass Setting Magnetic DeclinationCompass Installation Finding True North Lining Up with the Celestial Pole Appendix B Equatorial USECelestial Coordinates Precise Polar Alignment Appendix C LX200 Alignmentstar Library Star Charts Alignment StarsStar Charts For Northern Hemisphere Observers Page Cngc Catalog SAO CatalogUGC Catalog Object LibraryStar Catalog 1C CatalogGcvs Catalog Messier Catalog1200ly Little Dumbbell Nebula1x4.1 Double Cluster h Per 7klyTarantula Nebula Very Red Open Clus + Dneb Glob Clus D2 ST 10.7x2.5 C1 SBubble Nebula Red Beta Tau Alnath CapellaBellatrix Beta Lep aStar Catalog Rigel Kentaurus B=1.3 Zuben ElschemaliSeginus BrachiumRas Algethi AldhibahSabik A=3.0 B=3.5 Sarin B=8.8Sadalmelik Al Nair 302 Open Clus Sparse M93 Includes dark nebula Keeping Your Telescope Clean Appendix E Maintaining Your LX200Collimation of the Optical System Factory Servicing and Repairs Behind the Power PanelRight Ascension Lock Appendix F LX200 Personal Computer Control RS-232 CableLX200 Test Program General Telescope Information LX200 Command SetCommand Set Formats Library/Objects Telescope MotionHome Position Miscellaneous Finds the next object in a Find sequenceLX200 Demo Program Counter =REM Keys TelposKeyi Keys Appendix G LX200 Specifications TelescopeLX200I/10 10 LX200f/10 200 f/10 Page Field TripodFig Field Tripod collapsed Oak Canyon, Irvine, California 92618 2000AC Operation Customer ServiceIntroduction DC Operation

LX20 specifications

The Leisure Time LX20 is an outstanding aquatic vehicle designed for leisure and recreational cruising. With its innovative design and advanced technology, it truly stands out in the world of personal watercraft. Built for performance and comfort, the LX20 is perfect for families, friends, or anyone looking to enjoy a day out on the water.

One of the main features of the LX20 is its spacious deck layout. The boat boasts ample lounge seating, providing enough room for passengers to relax and socialize while enjoying the beauty of nature. The ergonomic design of the seating ensures comfort during long excursions, whether you're fishing, sunbathing, or simply cruising along the coastline.

Powering the LX20 is a state-of-the-art engine, which offers impressive fuel efficiency without compromising on performance. The boat accelerates smoothly and reaches top speeds with minimal effort, making it suitable for water sports such as wakeboarding and tubing. The advanced hull design not only enhances stability and maneuverability but also ensures a smooth ride across choppy waters.

Technology plays a significant role in the LX20's appeal. Equipped with a user-friendly helm, the boat features an advanced navigation system, providing real-time GPS tracking, sonar capabilities, and weather alerts. This ensures that the captain can navigate with confidence, no matter where the adventure leads. The LX20 also includes Bluetooth speakers, allowing passengers to enjoy their favorite music while soaking up the sun.

Safety is a top priority in the design of the LX20. The boat is outfitted with essential safety features such as life jackets, fire extinguishers, and emergency flotation devices. The non-slip surfaces throughout the vessel minimize the risk of accidents, particularly when the boat is moving at high speeds or navigating rough waters.

In summary, the Leisure Time LX20 is a remarkable boat that caters to both adventure-seekers and those looking for relaxation. Its blend of spacious design, powerful engine, innovative technology, and strong safety features makes it an ideal choice for anyone who loves spending time on the water. Whether you’re planning a fishing trip, a family outing, or a leisurely cruise, the LX20 promises to deliver an unforgettable experience.
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