Tech Support
RoHS 3 Compliance of Coaxial Antenna Cables , Connectors and Adapters
RoHS 3 Compliancy
All of Data Alliance’s antenna cables and adapters for antenna cables, are compliant with RoHS 3 and REACH.
Our antenna cable connectors and adapters' composition is mainly of
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Posted by George Hardesty on 19th Sep 2019
M2M Communication & mMTC - Massive Machine-Type Communication
M2M Communication:
Machine to Machine Communication, also abbreviated as M2M is a modality of communication between machines or devices without any human interaction or control. These devic
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Posted by George Hardesty on 14th Sep 2019
NarrowBand-Internet of Things (NB-IoT)
NB-IoT:
NB-IoT is a wireless IoT protocol using Low Power Wide Area Network (LPWAN) technology, and that uses licensed frequency bands. The range is up to three miles under normal/typical co
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Posted by George Hardesty on 13th Sep 2019
Front to Back Ratio: Directivity of Antenna to Reduce Interference
Antenna Directivity:
Front to Back Ratio Applies to Directional Antennas Only
Front to Back Ratio Defined and Explained
The measure of directivity of a directional antenna: It i
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Posted by George Hardesty on 7th Sep 2019
Alfa AWUS036H: Does not auto-renew IP address when you change networks
Very good insight into the Alfa AWUS036H card: Sent to us by customer Troy Wilson.
If you connect the first time to any signal at all, the IP address of that connection will appear in t
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Posted by Troy Wilson on 26th May 2019
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 20th May 2019
Use USB cable(s) to place WiFi adapter outside for line-of-site (negligible signal loss in cable)
USB Cables for WiFiUSB Cables for Wi-Fi Adapters are a much better choice than standard coax Antenna Cables because antenna cables (coax) lose a lot of signal-strength. USB cables lose little sign
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Posted by George Hardesty on 19th May 2019
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
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Posted by George Hardesty on 19th May 2019
50-Micro-Inch Gold Plating on RJ45 Connectors & Jacks: Up to 4X Throughput Increase
50-Micro-Inch Gold Plating
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Posted by George Hardesty on 12th May 2019
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.,
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Posted by George Hardesty on 28th Apr 2019
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-adapter to combin
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Posted by George Hardesty on 27th Apr 2019
5G, 4G & 3G Standards: LTE, GSM CDMA, ISM, WCDMA, HSPA
5G - 4G - 3G Standards:
LTE (4G), GSM (3G & 2G), CDMA (3G & 2G), 5G and ISM. The fundamental differences between these four modern technologies is the way they transmit and receive i
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Posted by George Hardesty on 12th Apr 2019
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
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Posted by George Hardesty on 12th Apr 2019
LoRa: Long Range Wireless for Internet of Things (IOT): Frequency Bands, Antennas
Long Range Wireless (LoRa):
LoRa is a French wireless networking standard currently owned and developed by the Californian company Semtech and overseen by the LoRa Alliance. The protocol outlin
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Posted by George Hardesty on 12th Apr 2019
ZigBee for Internet of Things (IOT). ZigBee Antennas
ZigBee Antennas:
ZigBee has many similarities to Bluetooth but is simpler and cheaper to operate.
Simpler and lower-cost alternative to Bluetooth for IoT (Internet of Things) applications:
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Posted by George Hardesty on 7th Apr 2019
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
1
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Posted by George Hardesty on 31st Mar 2019
ISM Band of Frequencies and Allocation
Industrial, Scientific and Medical Frequency Band
ISM means Industrial, Scientific and Medical frequency band. This is a band of radio and microwave frequencies clustered around 2.4GHz, reserved a
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Posted by George Hardesty on 31st Mar 2019
Legal & Illegal Frequencies & Channels In the United States
LEGAL & ILLEGAL Frequencies 4.9GHz to 5.825
(United States only)
Channel
Frequency
United States
(MHz)
40/20 MHz
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Posted by George Hardesty on 30th Mar 2019
Definitions: Wireless & WiFi Terms
Wireless and WiFi Definitions:
Access Point (Wireless Access Point): Often referred to as a "wireless router:" Stationary radio station that has a connection to the Internet. Other names for th
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Posted by George Hardesty on 30th Mar 2019
LMR-400 Coax Specifications / Characteristics: Lowest Signal Loss in Its Class
LMR-400 Coax Cable:
Structure: LMR-400 is a 50-ohm coaxial cable that was originally made to replace lower quality coax cables such as the RG-8. The 400 represents the cable diameter. The LMR-4
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Posted by George Hardesty on 22nd Mar 2019
CLF-100 Coax Specifications / Characteristics. Comparison to LMR-100
CLF-100 Coax Cable:
CLF-100 and LMR-100 have the same structure and shielding
CLF-100 "Low loss cable" differs from RG174 and other coax standards by
double shielding and the resulting l
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Posted by George Hardesty on 21st Mar 2019
Signal Loss (Attenuation) in LMR-100 & LMR-200 Cables Five to Ten Feet in Length
Six feet is not too long for the LMR-100 and LMR-100-equivalent cable that we use for shorter
antenna cables.
However, it is right at the threshold at which we would recommend that yo
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Posted by George Hardesty on 18th Mar 2019
IoT (Internet of Things) Wireless Protocols and Their Frequency Bands
Internet of Things (IoT):
IoT (Internet of Things) is a growing network of objects, devices and machines each able to communicate with the other using a wireless network to access the Internet
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Posted by George Hardesty on 18th Mar 2019
MIMO: Multiple In / Multiple Out Technology in 802.11ac and 802.11n
Multiple In / Multiple Out (MIMO):
MIMO technology: By overlaying the signals of multiple radios, Wireless-N's "Multiple In, Multiple Out" (MIMO) technology multiplies the effective data rate. Un
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Posted by George Hardesty on 17th Mar 2019
802.11B for Long-Distance Links on Older Gear
802.11B for Long Distance Links:
If you are trying to reach a distant or weak network signal for internet access, 802.11b will provide better range/distance than 802.11g, and 802.11b provide
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Posted by George Hardesty on 16th Mar 2019
WiFi Network Standards Compared: 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a
WiFi Network Standards:
802.11ac is the latest WiFi standard and uses the 5.8GHz frequency band. Older standards 802.11n and earlier used 2.4GHz as its
frequency band.Advantages of 802
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Posted by George Hardesty on 16th Mar 2019
WiFi Frequency Bands: Uses, advantages & disadvantages of 2.4GHz, 5GHz, 900MHz Ranges
WiFi Frequency Bands:
2.4GHz:
Older Consumer WiFi products (before 802.11ac) are 2.4GHz
Far better at traveling through walls than 5GHz
Disadvantage is that it is typically more clutter
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Posted by George Hardesty on 16th Mar 2019
U.FL & MHF4 Antenna Cables: Thickness of Cable & other Key Considerations
U.FL and MHF4 Antenna Cables:
Data Alliance offers three options of thickness of the coaxial cable for U.FL cables: 1.13mm, 1.32mm and RG174:
All three have a black jacket. All three are RoHS a
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Posted by George Hardesty on 10th Mar 2019
