On Tue, 1 Jul 2003, Rob S wrote: > It claims FCC approval so I assume it isn't outside the US regulations, > though I am unsure of the UK spec? Or indeed how to calculate the
ETSI/UK permitted tx power limit is 100mW (20dBm). Typical cards are 15dBm, so you have a max of about 5dBm gain on top of that before you hit the legal limit. US power limit is something like 3 or 4*W* (36dBm) - remember dB is not a linear scale, but logarithmic - +3dB is a doubling of power, eg. 10dBm is 10mW, 13dBm is 20mW, 16dBm is 40mW, 19dBm is 80mW. > Product Spec: > 17dB transmit gain > 500mW Output power (+27 dBm) Unsure how these relate to each other - possibly it's 17dB gain, typically 27dB output based on a 10dBm card input - but either way you're buggered from a legal tx power level point of view in an ETSI country. -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
