Elecraft W2 Watt-meter Manual - Manual (Page 2)

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Contents
Introduction ............................................................................................................................................... 3
Customer Service and Support ................................................................................................................. 3
Technical Assistance ....................................................................................................................................... 3
Repair / Alignment Service ............................................................................................................................. 3
Specifications ............................................................................................................................................ 4
Display Unit ........................................................................................................................................................ 4
Directional Couplers (Sensors) ........................................................................................................................... 4
Operation .................................................................................................................................................. 5
Front Panel .......................................................................................................................................................... 5
Rear Panel ........................................................................................................................................................... 6
Directional Coupler (Sensor) .............................................................................................................................. 7
Computer Interface .............................................................................................................................................. 7
Firmware Updates ........................................................................................................................................... 7
SWR Alarm Function ...................................................................................................................................... 8
Kit Assembly ............................................................................................................................................ 8
Preventing Electrostatic Discharge Damage ....................................................................................................... 8
Tools Required .................................................................................................................................................... 9
Assembly Procedure ............................................................................................................................................ 9
Display Unit Assembly ................................................................................................................................... 9
Directional Coupler ....................................................................................................................................... 16
Appendix A Parts List ............................................................................................................................ 17
W2 Circuit Boards ............................................................................................................................................. 17
Enclosure ........................................................................................................................................................... 17
W2 Hardware (E850356) .................................................................................................................................. 18
Cables ................................................................................................................................................................ 19
Sensors .............................................................................................................................................................. 19
Appendix B – Schematic Diagrams ........................................................................................................ 20
Appendix C – Power On Modification ................................................................................................... 26
Important Operating Notes for Modified Units ................................................................................................. 26
Installing the Jumper ......................................................................................................................................... 26
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