Thank you for your selection ofthe Interphase Twinscope Forward Scanning Sonar. The Twinscope's ruggedly built, compact desig¡1 makes it ideal for installation on nearly any boat. Itwill display water depth, bottom conditions and submerged objects such as fish, or objects in your path, on its high resolution display. The Twinscope is available with either two transom or a single thru-hull scanning sonar depth transducer. In addition, an optional speed/temperature transducer (either transom or thru-hull) is available which will enable your Twinscope to displayboat speed, elapsed distance and surface water temperature. Refer to the accessories part numbers printed in the Transducer Installation section (Page 19) ofthis manual, then see your dealer or call Interphase to order.

The Twinscope has an unprecedented number of advanced features, in addition to the forward scanning capability, to make your boating safer and your fishing more productive. Its high resolution SuperTwist Liquid Crystal Display (LCD) provides split screen views of 4X magnification zoom and bottom lock, large digital display, speed and temperature history graphs(with the speed/temperature transducer). You will appreciate the very useful features of fish and depth alarms, manual or automatic gain control, bottom hardness indicator and fish symbol identification.

The Twinscope allows operation in your choice of nine languages: English, French, Italian, Spanish, Gennan, Danish, Finnish, Swedish, or Greek. Power-off memory saves language, depthrange, gain and contrast settings, screen advance speed and location in screen menu. Due to its unique multi-tasking operation, the Twlnscope provides instant full screen updates when switching between modes (no data loss).

Ifyou have your Twinscope interfaced with a Loran-C or GPS unit, you can take advantage oftheincluded track plot displays. The Loran-C, DECCA, atld GPS track plot displays on the Twinscope give a whole new dimension, by enabling you to not only see the depths beneath and in front of your boat, but also to see a graphic display ofyour boat's position and progress over time. The track plot display makes it easy to fmd and return to the same fishing spot, or to troll back over the same productive areas.

To ensure that you receive the maximum benefits available from the out standing features ofthe Interphase Twinscope,

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Warranty Information

Interphase provides a limited warranty on the Twinscope Forward Scanning Sonar. We strongly urge you to read this warranty ( reprinted at the back of this manual) andclosely follow its teffi1S and conditions should your Twinscope require repair. It is highly recommended that you save all packing materials so that if you should need to send in the unit for repair, it can be fully protected. Ifyou wrap your display unit in the original plastic bag and ship it in the box with cardboard inserts, this will protect your unit from scratches and shock during shipment.

Should you experience a problem with your Twinscope, first refer to the Troubleshooting section (Page 81) ofthis manual. Most comrnon problems and their solutions are described here. If problems persist, call Interphase Technical Service at (408) 477-4944. We will be happy to try to assist you, and if required, we will give you instructions on how to quickly get your set repaired.

The enclosed wan-anty registration card must be completed and returned to Interphase within 15 days of purchase so that your unit may be protected under ~he wan-anty. Failure to retum the wan-anty card may cause unnecessary delays in processing your unit for wan-anty repair.

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