So, what the heck is a spectrum analyzer?
A spectrum analyzer displays sound in terms of it’s frequency content. It shows you what frequencies are present in whatever sound you are analyzing. HAM radios work within a 3000 Hertz (abbreviated 3 kHz) ‘bandwidth’. This means that only frequencies between 0 Hz and 3kHz are present. For comparison, humans can typically hear frequencies up to about 12 kHz (infants up to 16kHz). Because HAMs have such a limited bandwidth to work in, it is important to utilize the entire band to achieve the highest quality signal possible. To that end, the use of a spectrum analyzer (like HamAlyzer) in conjunction with an equalizer (which adjusts the levels of particular frequency regions) can dramatically improve the quality of your signal.
