It employs a DIP-switch-controlled frequency synthesizer and 4 plug-in bandpass filters to cover the 6 HF contest bands (fig.1).Ģ I have been using a single-band SoftRock with CW Skimmer since March, and I can testify to its adequacy. The least expensive is the SoftRock Lite Version 8.3+Xtall, at less than $50 in kit form (see for details). There are a variety of SDRs available that will fill the bill as stand-alone receivers. You can go with a stand-alone receiver, or you can use a single-frequency SDR as a downconverter, connected to your receiver s IF before the roofing filter. To me, they are: Choice of SDR (software-defined radio) and overall configuration Antenna(s) Computer and sound card Integration with contest logging software Receivers There are two potentially workable general solutions (more about that potentially in a moment). Let s start by identifying the main questions you ll have to deal with. My assignment for this article was to outline the major considerations that will affect practical deployment of the software and related hardware, based on my experience and that of a few pioneers. In fact, the sum of real-world experience with CW Skimmer is at most a few operators, in only a few major contests. From the strength of opinions being expressed, pro and con, you d think it had already turned the contesting world upside down. 1 So You Want to Skim Practical Issues in Deploying CW Skimmer in a Contesting Environment As you read this, it s only been a little over 6 months since VE3NEA s CW Skimmer software first appeared on the market.
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