At the Hands-On Musuem, we’ve been having some trouble with our signals getting into some cheap computer speakers that one of the staffers has connected to her computer. I Googled to see if I could find any information on this, and came across a reference to some computer speakers that West Mountain Radio sells that are supposedly RFI-resistant.
I e-mailed them, asking if they might be able to tell me what they’d done to improve the performance. Here’s their reply:
We are sure you can find a great deal of information in the ARRL Handbook about making equipment, that has to exist in strong RF environments, immune to that RF.
I the case of the computer speakers we designed and have available for sale in our line of quality Amateur Radio Products, we have applied some of these techniques and some of our own. However because we designed these as products in our continuing attempts to remain in business by making a profit (as slim as it may currently be) we do consider this to be Confidential Intellectual Property and as such we are unable to be anymore specific than this.
Thank you for your interest.
Sales & Support
West Mountain Radio
This response really turns me off. I could maybe see them responding this way if I was asking for some super-secret DSP algorithm or something like that, but as K3EIN points out, this information is readily available. It’s certainly not rocket science. Anyway, this makes me kinda not want to buy anything from West Mountain Radio again.