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Clint Hurd, kk7uq, is available for ham club presentations in Western Washington.  A presentation titled, "Sound Card Interfacing" has been given at SEAPAC and to many ham clubs in the area.  It is a slide presentation, runs about an hour, and covers:

bulletEvolution of the interface from simple cables to the dual transformer fully isolated design popular today.
bulletSources of Interfaces and Software, comparing features between the various suppliers
bulletCommon problems and their cures for PSK31 interfaces
bulletOptimizing PSK operations
bulletIMD Reporting
bulletA ham club project for building interfaces.  (The manual for this project is included in this web site)

A copy of the slides of this presentation can be found by clicking here.  It is 806 kb so be patient.

There is no charge for this presentation.  All you need is a darkened room and a screen or white wall. Contact Clint at

    Clint Hurd kk7uq

    (360) 379-4042

    Email contact

 

to schedule a talk.  Some photos from the Port Ludlow talk are shown below (thanks Dick K7RNZ for the photos)

 

 

Clint Hurd kk7uq                                                                                                A dual transformer isolating interface with the cover removed

                                                                                                                              

 

 

Evolution of Interface Design

Comparison of available interfaces