User's Manual

Provisioning
46 SkyZhone 45 Installation Guide
DR
A
FT
The first three characters @ S T begin the command string for the Set
Transmit Signal Strength command.
The fourth character, 0, defines the unit number, which is always zero.
The fifth through seventh characters are 0.
The eighth and ninth characters, 0 A, set the HEX attenuation value (see
Table 14).
The last two keystrokes of the command are ! <Enter>.
Setting the receive signal attenuation
This command programs the receive attenuator in the ODU, HEX setting 00
for no attenuation and 1F for maximum attenuation. It is usually set at 00 for
maximum receive ability but can be adjusted for each link. If the link is short
the received signal may need to be reduced.
Table 14: Transmit signal strength
Attenuator setting
(HEX)
TX output at the
antenna port
EIRP using
2’ antenna
(29 dB gain)
EIRP using 4’
antenna
(33 dB gain)
EIRP using
6” antenna
(37 dB gain)
00 +7 dBm Not allowed Not allowed Not allowed
Caution: The attenuator setting “00” should only be used during ODU testing. The antennas offered
with SkyZhone 45 provide more EIRP at this power setting than allowed for operation in the United
States under Part 15.407 of the FCC rules.
06 +2 dBm +30 dBm Not allowed Not allowed
07 +1 dBm +29 dBm Not allowed Not allowed
08 0 dBm +28 dBm Not allowed Not allowed
09 -1 dBm +27 dBm Not allowed Not allowed
0A -2 dBm +26 dBm +30 dBm Not allowed
0B -3 dBm +25 dBm +29 dBm Not allowed
0C -4 dBm +23 dBm +28 dBm Not allowed
0D -5 dBm +22 dBm +27 dBm Not allowed
0F -6 dBm +21 dBm +26 dBm +30 dBm
10 -7 dBm +20 dBm +25 dBm +29 dBm
11 -8 dBm +19 dBm +24 dBm +28 dBm
12 -9 dBm +18 dBm +23 dBm +27 dBm
HEX values between 13 and 1F will set transmit power below useful levels.
1F (maximum) -24 dBm +4 dBm +8 dBm +12 dBm