MURSlink can provide 2300 times greater coverage area than 802.11b


Copyright © 2002 by PubCel. All rights reserved.


A MURSlink Access Point can theoretically provide 2300 times greater coverage than an equivalently configured 802.11b Access Point. Here are the supporting calculations:

Energypropto Range^2
Epropto 1/Bandwidth
R_1^2 /R_2^2 = (1/4800) / (1/11,000,000)
(R_1/R_2)^2=2300
Range Improvement = R_1/R_2=48
Areapropto Range^2
Coverage Area Improvement = 2300


NOTE1: This calculation assumes that both stations(MURS and 802.11b) are operating at the maximum allowed ERP allowed by the FCC. For MURS that is 2W ERP. For 802.11b, that is 1W transmitter output thru a 6dBi gain antenna... Given that dBd = dBi - 2.15, this yields roughly 2W ERP for 802.11b.

NOTE2: This calculation does not include the influences of signal and receiver quality, or noise and free-space losses. However, with consumer-quality systems, in average noise environments, these factors - when take together - should not yield significant differences from the results obtained in the basic calculation above.

Links

MURS(Multi-Use Radio Service) Discussion Group

MURSlink Discussion Group