Tech Support - Antennas
Operate 2 Antennas from One Radio: Use a "Power Divider" or "Antenna Combiner" - NOT a T-adapter
Power Divider / Antenna Combiner:
Do not use a "T connection" to get one AP to service two
antennas:
This causes many problems, further described below. By "T connection," we mean
T-adapte
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Posted by George Hardesty on 23rd Nov 2023
If Antenna frequency band exceeds needed range: Use Filter on system board to reduce excess band
Antenna Frequency Exceeds Range:
Example: You need only 860-960 MHz GSM band but the antenna covers 800-960MHz: One customer told us that using an antenna that includes 824-960 band allows too m
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Posted by George Hardesty on 22nd Nov 2023
dBi, dB, dBm dB(mW): Defined, Explained and Differentiated
dBi Values Explained:
dBi = dB(isotropic): The forward gain of an antenna, measured in decibels (dBi), The dBi value reflects the antenna's directional / beamwidth characteristics, i.e., direction
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Posted by George Hardesty on 22nd Nov 2023
VSWR: Impedance Matching in Antennas & Antenna Cables
VSWR Explained:
Voltage Standing Wave Ratio (VSWR) is a key Indicator of antenna performance (along with gain/dBi): The lower the VSWR, the more efficient the antenna.
VSWR is a measure of the e
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Posted by George Hardesty on 22nd Nov 2023
45-degree Slant Antenna Polarization Overcomes Interference and Issue w/ Dual-Polarization
45-degree Slant Antenna Polarization:
Signals received at base station
antennas are typically elliptically polarized in a way more like vertical polarization than horizontal polarization. T
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Posted by George Hardesty on 22nd Nov 2023
Antenna Polarization: Vertical, Linear: Key Factor in Selection of an Antenna
Antenna Polarization:
Polarity is a key electrical characteristic to be considered when selecting an antenna. Like-matched antennas in an RF set-up will have optimal power or signal transfer in poin
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Posted by George Hardesty on 22nd Nov 2023
Antenna Radiation Patterns: H-Plane, E-Plane, XY XZ YZ Planes
Antenna Radiation Patterns:
This article explains radiation patterns, detailing how
polarization (linear and vertical) relates to the E-Plane and H-Plane, and how XY, XZ and YZ planes correspo
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Posted by George Hardesty on 22nd Nov 2023
Spatial Diversity Overcomes Multi-Path Interference | Wireless Links Over Water
Spatial Diversity:
Spatial diversity is a useful feature for overcoming multi-path interference. By providing spatial diversity, the radio's internal circuitry can select between the two receive
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Posted by George Hardesty on 22nd Nov 2023
FPV (First Person View) Antennas for Drones
FPV Antennas for Drones:
FPV (First Person View), are remotely controlled vehicles from a pilot’s or drivers point of view. They include unmanned aerial vehicles such as drones and ground vehicles s
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Posted by George Hardesty on 22nd Nov 2023
5G Antennas and IoT Integration in 2023
The integration of 5G technology into the
Internet of Things (IoT) landscape
is ushering in a new era of connectivity and innovation. In this article, we
will explore how 5G technology
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Posted by George Hardesty on 22nd Nov 2023
Selecting the Right Antennas for IoT Applications
Making Informed Antenna Choices for IoT Applications
The
Internet of Things (IoT) stands as a transformative force, seamlessly
bridging the physical and digital realms. In this comprehen
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Posted by George Hardesty on 22nd Nov 2023
GPS antennas: Key Physical and Electrical Characteristics
What is a GPS antenna?
A
GPS antenna is a radio frequency antenna that provides
connectivity with the
Global Positioning System, a proprietary, satellite-based radio navigation system designe
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Posted by George Hardesty on 22nd Nov 2023
Maximum Input Power Rating of Antennas
Antenna Maximum Input Power Rating:
Maximum Input Power is defined as: The maximum amount of power (voltage given in Watts) that is able to be transmitted to a single antenna without damage to the a
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Posted by George Hardesty on 22nd Nov 2023
Dual Polarity Antennas & MIMO (carrier-grade antennas)
Characteristics of Dual Polarity Antennas
Have horizontal and vertical antennas in a same antenna.
Antennas of dual polarity are high-speed, bandwidth for VOIP and streaming
media
O
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Posted by George Hardesty on 24th Jul 2022
dBm to Watt Conversion Table
Upgrading your antenna, even just a small increment in dBm, makes a HUGE impact on the range of your device:
(dbm is logarithmic and mw is linear.)
dBm
0
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Posted by George Hardesty on 7th May 2022
