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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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July 1st, 2021 - Vista, California - Axiom Test Equipment, an electronic test equipment rental and sales company, has published a new blog post entitled "Spectrum Analyzers Check 5G Occupied Bandwidth" that informs people on how the right spectrum analyzers can help locate the interference of additional signal energy that can interfere with 5G service. With a suitable spectrum analyzer, occupied bandwidth measurements reveal the total integrated all signal energy within the bandwidths that concern 5G system designers, service providers, and users and when any interfering signals are at high enough power levels to be a concern.

Selecting a spectrum analyzer for occupied bandwidth testing is a matter of matching the equipment’s capabilities to the limits of the OBW measurements. An analyzer’s frequency range and amplitude range are good starting points for 5G OBW measurements, especially due to the needs for such wide measurement bandwidth for 5G testing, basically from almost DC through 60 GHz and higher. A suitable analyzer should offer an amplitude measurement range that can survive the higher-power (more than 1 W or +30 dBm) signals close to a 5G base station along with the sensitivity to detect the low-power signals at the edge of a 5G base station’s coverage area.

Learn more about how to pick the appropriate Spectrum Analyzer by reading the full blog post on Axiom's website.

Spectrum Analyzers Check 5G Occupied Bandwidth

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Mobile wireless communications were once considered a luxury but is now more than likely a necessity for many users requiring voice and data service. Cellular wireless technology has quickly evolved from analog Advanced Mobile Phone Service (AMPS) networks to digitally modulated Fifth Generation (5G) cellular wireless with signals extending from the RF/microwave spectrum well into the millimeter-wave (mmWave) frequency range from 24 GHz to above 60 GHz. Around the world, frequency channels are reserved for 5G use, with the assumption that 5G signals will have those frequency channels for exclusive use. When the channels are not exclusive, the additional signal energy can cause interference that degrades or obstructs 5G service, resulting in dropped calls and slow data rates. Fortunately, a spectrum analyzer can help locate the interference, even at mmWave frequencies, by performing occupied bandwidth (OBW) measurements.

Cellular telephone antenna towers attempt to provide uniform signal distribution to a growing number of global users, with 5G networks faced with the challenge compared to older generations of two different spectral regions: below 6 GHz and at mmWave frequencies. Signal energy from the towers is directed towards the horizon with some downward scatter and signal absorption making uniform signal distribution around the cell site difficult. The higher-frequency mmWave signals, with their short wavelengths, have much shorter propagation distances than the longer-wavelength, lower-frequency signals, requiring many additional smaller 5G base stations for effective mmWave frequency coverage.

Advanced antenna technologies, such as the use of active phased-array antennas like those used in military radar systems, generate directional signal beams that can be actively steered to users but 5G networks, with their ever-increasing numbers of users, require dense signal environments across wide signal spectrums. And interference can prevent reliable signal reception from a 5G base station. With a suitable spectrum analyzer, OBW measurements reveal the total integrated all signal energy within the bandwidths that concern 5G system designers, service providers, and users and when any interfering signals are at high enough power levels to be a concern.

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Whatever your project requires testing of, rent or buy quality test equipment from Axiom Test Equipment. For over 15 years Axiom Test Equipment has rented, sold, repaired and accepted trade-in of test equipment to support your test & measurement needs. If you would like help selecting any type of test equipment for your next project, contact Axiom Test Equipment's sales department at sales@axiomtest.com, call 760-806-6600, or browse Axiom Test Equipment's inventory online at www.axiomtest.com.

 

About Axiom Test Equipment

Josh Shilts Axiom Test Equipment July 2020 - RF CafeGet Exactly What You Need. Rent - Buy - Repair - Trade-In

Established in 2005, Axiom Test Equipment strives to continually improve itself and offer the best value for its customers. We offer our customers several practical, efficient and cost effective solutions for their business or projects' test equipment needs. Whether you need to rent & buy test equipment, repair test equipment, sell or trade equipment, we are committed to providing superior customer service and high quality electronic test equipment.

At Axiom Test Equipment we provide several services. We rent electronic test and measurement equipment. We also sell test equipment. If you have a piece of malfunctioning or broken test equipment we also have an in-house repair lab. For anyone seeking a way to offload their surplus or obsolete equipment, we offer a trade-in program or we can buy the equipment from you.

We stock a comprehensive inventory of equipment and can use our extensive network to find you those hard to get items. We believe in getting equipment to you quickly and at a competitive price.

 

Contacts

Axiom Test Equipment

2610 Commerce Way 

Vista, CA  92081

Phone: (760) 806-6600

Web: www.axiomtest.com

 

 

Posted July 5, 2021

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