User's Guide

1 6  3 . I n sta lla t ion
© 2 0 0 7 M ose ley, I nc. All Rights Re ser ve d. 6 0 2 - 1 4 8 8 6 - 0 1 , Rev. A
For link budget , EI RP( Avg) dBm = 37 dBi + Tx Power Sett ing (dBm ) .
Table 3 - 3 . Ma xim um Pow e r Se tt ings for 5 .3 GH z
U- N I I Ba nd Ope r at ion ( US) .
Antenna Diameter Antenna
Gain, dBi*
(example)
Maximum
Tx Power
Setting,
dBm
1 Channel
Mode
(30MHz
BW)
Maximum
Tx Power
Setting,
dBm
2 Channel
Mode
(20MHz
BW)
Maximum
Tx Power
Setting,
dBm
3 Channel
Mode
(13.3MHz
BW)
6 foot dish 37.6 -10 -11 -12
4 foot dish 34.6 -7 -8 -9
3 foot dish 31.2 -3 -4 -5
2 foot dish 28.0 0 -1 -2
1.5 foot dish 25.3 +3 +2 +1
Internal 23.0 +5 +4 +3
* Note: Many ant enna m anufact urers rat e antenna gain in dBd (dB referred t o a dipole
ant enna) in their literat ure. To convert t o dBi, add 2.15 dB.
Power sett ings for other m odes of operat ion can be budget calculat ions,
EI RP( Avg) dBm = Ant enna Gain (dBi) + Tx Power
Though transm itt er radiat ed power is lim ited in the receiver benefit s from gain of larger
ant ennas.