User's Manual

Estimating RF Coverage
6-16 InterReach Unison Installation, Operation, and Reference Manual
CONFIDENTIAL D-620003-0-20 Rev M
Table 6-15 gives the value of the first term of Equation (3) (that is, (20log(4πf/c)) for
various frequency bands.
For reference, Tables 6-17 through 6-23 show the distance covered by an antenna for
various in-building environments. The following assumptions were made:
• Path loss Equation (3)
• 6 dBm output per carrier at the RAU output
• 3 dBi antenna gain
• RSSI = –85 dBm (typical for narrowband protocols, but not for spread-spec-
trum protocols)
Table 6-15 Frequency Bands and the Value of the first Term in Equation (3)
Band (MHz)
Mid-Band
Frequency
(MHz) 20log(4πf/c)Uplink Downlink
800 MHz Cellular 824–849 869–894 859 31.1
800 MHz iDEN 806–824 851–869 837.5 30.9
900 MHz GSM 890–915 935–960 925 31.8
900 MHz EGSM 880–915 925–960 920 31.7
1800 MHz DCS 1710–1785 1805–1880 1795 37.5
1900 MHz PCS 1850–1910 1930–1990 1920 38.1
2.1 GHz UMTS 1920–1980 2110–2170 2045 38.7
1.7/2.1 GHz AWS 1710-1755 2110-2155
2132.5
a
a. Due to the wide frequency spread between the Uplink and Downlink bands, the mid-band frequency
of the Downlink band was chosen for 1.7/2.1 GHz AWS.
39.0
700 MHz PS 793-806 763-776 784.5 30.3
700 MHz LTE 776-787 746-757 766.5 30.1
Table 6-16 Approximate Radiated Distance from Antenna
for 700 MHz LTE Applications
Facility
Distance from Antenna
Meters Feet
Open Environment 79 258
Moderately Open Environment 67 219
Mildly Dense Environment 59 193
Moderately Dense Environment 50 164
Dense Environment 42 137