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1QTY mil spec gps L1 reference antenna # 58530A


1Qty Mil Spec GPS L1 Reference Antenna # 58530A
http://ngn.symmetricom.com/products/Subsystems_Components/58532A.asp
http://ngn.symmetricom.com/pdf/datasheets/ds-58532a.pdf
The Symmetricom 58532A GPS L1 Reference Antenna is the latest in a line of Symmetricom antennas used to deliver L1 carrier frequency signals to GPS synchronization modules and receivers. Based on a design with proven reliability in tens of thousands of installations, the 58532A, like its predecessors, is characterized by low noise and high gain to provide optimum signal quality.
Noise and interference near the L1 carrier can compromise reception of GPS signals. The 58532A features excellent filtering, with narrow bandwidth and steep rolloff to preserve the GPS signal while attenuating unwanted signals near the L1 carrier.
Electromagnetic fields caused by nearby lightning strikes can induce surge voltages in the antenna cable, damaging the antenna. The 58532A offers improved immunity to induced voltages through built-in diode protection.
The Symmetricom 58532A GPS L1 Reference
Antenna is the latest in a line of Symmetricom
antennas used to deliver L1 carrier frequency
signals to GPS synchronization modules and
receivers. Based on a design with proven reliability
in tens of thousands of installations, the 58532A,
like its predecessors, is characterized by low noise
and high gain to provide optimum signal quality.
Outstanding Immunity to RF Interference
Noise and interference near the L1 carrier can
compromise reception of GPS signals. The 58532A
features excellent filtering, with narrow bandwidth
and steep rolloff to preserve the GPS signal while
attenuating unwanted signals near the L1 carrier.
Improved Immunity to Lightning
Electromagnetic fields caused by nearby lightning
strikes can induce surge voltages in the antenna
cable, damaging the antenna. The 58532A offers
improved immunity to induced voltages through
2 58532A G P S L 1 Ref e r e n c e A n t e n n a
Designed for easy installation in outdoor locations, the 58532A features a durable, unobtrusive,
cone-shaped cover that prevents snow and debris build-up. In addition, a sturdy aluminum
mounting base allows easy attachment to the Option AUB antenna mast. With this type of
mounting, the antenna/cable connector (type N) is protected from the weather. If your system
requires the new 58529A Antenna Line Amplifier with Bandpass Filter or 58530A GPS L1
Bandpass Filter, then these cylindrical products can fit directly inside the antenna mast to be
sheltered from the weather as well.
Power is conveniently supplied to the antenna via the RF cable. The antenna requires 5 Vdc at
less than 27 mA. This is available from several different GPS engines.
Option 001 includes an N Plug to TNC Jack adapter to accommodate TNC cable users.
Figure 1. Antenna and mounting base dimensions
Figure 2. Option AUB mounting mast dimensions
Figure 3. Relative amplitude versus frequency response for 58532A GPS L1 Reference Antenna.
58532A Specifications and Operating Characteristics
Frequency Range (3 dB Bandwidth) 1575.42 MHz ±10 MHz (typical)
Polarization Right-hand circular
Output Impedance 50W (typical)
Total Gain >30 dBi (38 dBi typical @ elevation angle 90°)
Out-of-Band Signal Attenuation 60 dB (typical) at 1575.42 MHz ±50 MHz
Noise Figure <2.2 dB (1.8 dB typical)
dc Power 5 Vdc ±0.5 Vdc, <27 mA (20 mA typical)
90 mm D x 128 mm H (includes connector)
43 mm I.D. , 75 mm O.D., 65 mm H
38 mm I.D., 42 mm O.D., 355 mm L
Color, Antenna and Mounting Base
Die-cast aluminum, powder coated
Die-cast aluminum, powder coated
Anodized aluminum with teflon coating or stainless steel
Operating Temperature –40°C to +85°C
Storage Temperature –45°C to +90°C
Figure 1. Relative amplitude versus frequency response for 58532A GPS L1 Reference Antenna.
Specifications subject to change without notice.
Dependable Accessories for Your GPS Installation — Brochure
Designing Your GPS Antenna System — Configuration Guide



1QTY mil spec gps L1 reference antenna # 58530A