Psion Inc 9160RA2050 User Manual
TECHNICAL ACQUAINT # 124a
Page 3 of 8
9160 with 2x SS RAD - TOP VIEW
Radio 1: Optional 2060 Div Ant
3
4
1
2
Radio 1: 2060 Main Ant (g)
Radio 2: 2050 Main Ant (a/g)
Radio 2: Optional 2050 Div Ant
NOTE: Tighten SMA connector to 8 lb/in (0.9 N/m).
Figure 2: 9160 Top View
The RA2050 and RA2060 radios support transmit and receive antenna diversity. With transmit diversity
the radio decides if it wants to transmit on the main or diversity antenna port. Transmit diversity switching
is much slower than diversity switching, typical dwell time is in the order of seconds. Diversity switching
is done on each packet received.
the radio decides if it wants to transmit on the main or diversity antenna port. Transmit diversity switching
is much slower than diversity switching, typical dwell time is in the order of seconds. Diversity switching
is done on each packet received.
Normally the same antenna is used for both the main and diversity port. There is a special case where
different antennas are used, such as setting up a WDS link in Europe where the EIRP puts a limit on the
gain of the main antenna. Please refer to TA# 065 for more information.
different antennas are used, such as setting up a WDS link in Europe where the EIRP puts a limit on the
gain of the main antenna. Please refer to TA# 065 for more information.
A dual band ‘screw-on’ articulated blade antenna is available for small areas. A maximum of two screw-
on antennas is allowed, and they can be used with either Radio 1 or Radio 2. In other words, you can
install the screw-on antennas on SMA jacks 1 and 3 (for Radio 1), or 2 and 4 (for Radio 2) ONLY. Never
install them in any other combination, doing so will cause interference between the radios (even if one
operates in the 2.4 GHz and the other in the 5 GHz band.)
on antennas is allowed, and they can be used with either Radio 1 or Radio 2. In other words, you can
install the screw-on antennas on SMA jacks 1 and 3 (for Radio 1), or 2 and 4 (for Radio 2) ONLY. Never
install them in any other combination, doing so will cause interference between the radios (even if one
operates in the 2.4 GHz and the other in the 5 GHz band.)
WARNING: Never operate the 9160 without a suitable antenna or a dummy load.
IMPORTANT!
1. FCC Requirement
To meet FCC regulatory approval, the max RF power in the 9160 must be set according to the
type of antenna used. As professional installers, Psion Teklogix personnel must abide by this rule
or risk legal action brought against the company.
type of antenna used. As professional installers, Psion Teklogix personnel must abide by this rule
or risk legal action brought against the company.
To set the maximum RF output from the radio follow these steps:
• telnet to the 9160.
• Enter “max_tx wlan0 xx” to set maximum transmit power to xx% of Radio 1’s default
• Enter “max_tx wlan0 xx” to set maximum transmit power to xx% of Radio 1’s default
value. Similarly, “max_tx wlan1 xx” sets the maximum transmit power for Radio 2 (a/g).
Example: if max_tx is set to 60% and "Transmit power" on the web UI is set to 50%, the
total power transmitted is 30%, (0.6 x 0.5 = 0.3). See Table 1 for values.
Tip: determine the radio type (RA2050 or RA2060), then determine if operating in a
country that follows FC or ET regulations, and finally, read the % value for the antenna
in use.
Example: if max_tx is set to 60% and "Transmit power" on the web UI is set to 50%, the
total power transmitted is 30%, (0.6 x 0.5 = 0.3). See Table 1 for values.
Tip: determine the radio type (RA2050 or RA2060), then determine if operating in a
country that follows FC or ET regulations, and finally, read the % value for the antenna
in use.