XStream™OEMRFModule–ProductManualv5.x00[2006.02.24]
Antennas
[Refer to Appendix A for a list of FCC-Approved Antennas]
Fa s link range:
e (interference)
ctors that determine wireles
• Ambient RF nois
• Line-of-sight obstructions
• Transmit power
• Receive sensitivity
• Antenna configuration
XStream Antenna Connector Options
To comply with the FCC rules and obtain a “modular” certification, it is required that XStream
to ensure the modules are used only with
. The XStream Modules have two connector options:
• RPSMA
• MMCX
ternatively, the XStream Module can be order with an attached wire antenna.
PSMA
Modules utilize a “non standard” connector. This is
approved antennas
Al
R
The
re
©2006MaxStream,Inc.ConfidentialandProprietary 56
Reverse Polarity SMA (RPSMA) connector uses the same body as a
gular SMA connector. In order to be a “non standard” connector, the
as a male center conductor.
MCX
gender of the center conductor is changed. The female RPSMA actually
h
M
The Micro-Miniature Connector (MMCX) is a good solution for
high volume, price-sensitive applications. The small size and
snap on connection make it suitable for attaching an external
An
mounted antenna to a module inside an enclosure.
tenna Cables
RF cables are typically used to connect a radio installed in a cabinet to an antenna mounte
externally. As a general rule, it is best to keep the RF cable as short as possible. All
d
cables
loss per 100 ft. MaxStream provides LMR-
95 rated cables. Common cables and dB losses are included in this table:
ableB‐04. PotentialSignalStrengthLossduetoAntennaCableLength
promote signal loss which is usually measured in dB
1
T
Cable Loss at 900 MHz per 100’ Loss at 2.4 GHz per 100’
Diameter
Type (loss per 100m) (loss per 100m)
RG-58 14.5 dB (47.4 dB) 25.3 dB (83.2 dB) 0.20” (4.95 mm)
RG-174 25.9 dB (85.0 dB) 44.4 dB (145.8 dB) 0.10” (2.54 mm)
RG-316 24.7 dB (81.0 dB) 42.4 dB (139.0 dB) 0.10” (2.59 mm)
LMR-195 11.1 dB (36.5 dB) 19.0 dB (62.4 dB) 0.20” (4.95 mm)
LMR-240 7.6 dB (24.8 dB) 12.9 dB (42.4 dB) 0.24“ (6.10 mm)
LMR-600 2.5 dB (8.2 dB) 4.4 dB (14.5 dB) 0.59” (15.0 mm)
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