On Mon, 26 Apr 2010 16:18:01 +0000, Lance Collister wrote: > It very effectively cuts out the background blower noise
Some of the major causes of audible background noise are 1) working too far from the mic; 2) running the mic gain too high; 3) using too much compression/processing; and 4) not rolling off the low frequencies. In a noisy environment, it always helps to work close to the mic. It is ALWAYS good practice to use the minimum mic gain needed to get good modulation, use no more than about 10dB of compression/processing, and roll off the low frequency content. It's good engineering practice for the highest quality broadcast stations, and it's good practice for ham radio. Indeed, the only difference between what's right for broadcasting and for ham radio is WHERE to cut the low end and HOW MUCH money to spend on compression/processing. Many years ago, I sold processing systems for broadcast stations that cost upwards of $10K in today's dollars, and I helped the chief engineers of those stations adjust them. I suspect that W8JI and K4TAX have similar experience. Before I spent ANY money on an outboard box for a ham rig, I would first follow all of those elements of good engineering practice. 73, Jim Brown K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
