NAL Research Corporation (TN2014-001-V1.4.5)
23
7.0 IRIDIUM ANTENNA CONNECTOR
The 9602-LP uses a single SMA female 50-ohm antenna connector for both transmission and reception of
the Iridium signals. The mating SMA male connectors are readily available from many RF hardware
vendors/suppliers. Cable and connector losses between the 9602-LP and the antenna are critical and must be
kept to less than 2dB at the operating frequency of 1616 to 1626.5 MHz.
NAL Research offers several types of antennas for use with the 9602-LP. These antennas include the fixed
mast, mobile magnetic/permanent mount and portable auxiliary. For low-cost and applications where small
form-factor and light-weight are required, NAL Research highly recommends model SYN7391-C as shown in
Figure 15.
If custom-designed antenna is required, it must meet the specifications shown in Table 2 below.
Table 2.
Recommended Iridium Antenna’s Design Specifications.
8.0 GPS ANTENNA CONNECTOR
The 9602-LP tracker uses an SMA female connector for the GPS antenna. Any active antenna accepting a
bias voltage of 3VDC is appropriate. However, the low-noise amplifier (LNA) gain should not exceed 30dB.
NAL Research offers a magnetic mount GPS antenna as well as dual Iridium/GPS antennas for use with the
9602-LP. For low-cost and applications where small form-factor and light-weight are required, NAL Research
highly recommends model SAF7352-IG as shown in Figure 16.
PARAMETER
VALUE
Measurement Frequency Range
1616 to 1626.5 MHz
Return Loss (Minimum)
9.5 dB
Gain
0.0 dBic (weighted average minimum)
VSWR
1.5 : 1
Minimum ‘Horizon’ Gain
–2.0 dBic (82
o
conic average)
Nominal Impedance
50 Ohms
Polarization
Right Hand Circular (RHCP)
Basic Pattern
Omni directional and hemispherical
Figure 15.
NAL Research’s Antenna SYN7391-C.
