Elecraft XV Transverter Owner's Manual User Manual

Page 4

Local Oscillator Power Control ................................................................................................................................................................................... 16

I.F. Overload Condition ............................................................................................................................................................................................... 17

Transmit-Receive Switching Delay ............................................................................................................................................................................. 17

Front Panel Display Control ........................................................................................................................................................................................ 17

OPTIONS AND MODIFICATIONS ....................................................................................................................................... 18

Tools Required ............................................................................................................................................................................................................ 18

Optional Crystal Oven ................................................................................................................................................................................................. 19

Changing Between Split and Common Antennas ...................................................................................................................................................... 20

Reducing Receive Gain to Preserve System Dynamic Range ................................................................................................................................... 21

Optional Feet and Bail Attachment ............................................................................................................................................................................. 21

CIRCUIT DESCRIPTION ..................................................................................................................................................... 22

Signal Flow ................................................................................................................................................................................................................. 22

Circuit Details .............................................................................................................................................................................................................. 24

ALIGNMENT AND TEST ..................................................................................................................................................... 27

Part I - Initial Setup ..................................................................................................................................................................................................... 27

Part II – Power Control ................................................................................................................................................................................................ 28

Part III - Local Oscillator Level .................................................................................................................................................................................... 28

Part IV – Receiver RF Amplifier Bias Adjustment ....................................................................................................................................................... 29

Part V – RF Power Amplifier Quiescent Current Adjustment. .................................................................................................................................... 29

Part VI – Filter Alignment. ........................................................................................................................................................................................... 29

Part VII – Power Display LED Calibration. .................................................................................................................................................................. 30

Part VIII – Receiver Input Alignment. .......................................................................................................................................................................... 30

Part IX - Overload Protection Circuit Test ................................................................................................................................................................... 31

Local Oscillator Frequency Calibration (Optional) ...................................................................................................................................................... 32

SCHEMATICS AND PARTS PLACEMENT DIAGRAMS.....................................................................................Appendix A

TROUBLESHOOTING..........................................................................................................................................Appendix B

JUMPER AND DIP SWITCH SETTINGS..............................................................................................................Appendix C