Everything You Need to Know about 2.4 GHz Wireless ...

09 Sep.,2024

 

Everything You Need to Know about 2.4 GHz Wireless ...

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New 2.4 GHz wireless microphones dropped at this year's NAMM, including the AKG DMSTetrad, and Sennheiser EW-D1. While we are not prepared to offer critical reviews of these new models, we want to revisit the pros and cons of wireless microphones that operate on the 2.4 GHz ISM band.

2.4 GHz microphones operate in 83 MHz of spectrum between 2.400 GHz and 2.483 GHz. By comparison, most wireless microphones today operate at lower "UHF" frequencies between 470 MHz and 698 MHz.

 

PROS

Simple to operate (under ideal conditions). The selling points for most of these models are &#;easy,&#; &#;easy,&#; and &#;easy.&#; The predictable locations of WiFi channels allow 2.4 GHz mics to sniff out where occupied frequencies are and are not, and they are also great at communicating with other mics and self coordinating (this is probably because 2.4 GHz microchips ship with more advanced radio protocols than off the shelf UHF chips). 2.4 GHz chips do not use FM modulation, and they are (at least the ones we&#;ve seen) all digital, so they are less susceptible to the intermodulation artifacts that plague multi-channel UHF FM systems. Mics from professional grade manufacturers like Shure, Sennheiser, AKG, Line6, and AT have tuned their modulation and circuitry to bring latency down to acceptable levels, as opposed to simply sending audio over WiFi.

International compliance. Properly manufactured 2.4 GHz microphones can be used in nearly every country without a license, in the same frequency range. UHF frequency bands are not synchronized across international borders, and the rules for wireless microphones vary from country to country. In some countries like the U.K. operating professional UHF equipment requires a permanent or temporary license, and half of the equipment sold in the UK in the 700 MHz band is illegal to use in the United States. 2.4 GHz mics give users a free pass from all the regulatory confusion.

Price. Smaller wavelengths means smaller antennas and electronic components, which means manufacturers can pack more features into a 2.4 than a UHF at the same price point.

 

CONS

Channel count. Manufacturers are careful to state their 2.4 GHz offerings are channel limited. The EW-D1 footnotes up to eight channels &#;in an ideal RF environment&#; (some press releases state 15 channels. I don&#;t know which spec is correct). The DMSTetrad specifies &#;up to four channels&#; per receiver. 2.4 GHz mics aren&#;t able to offer as many channels because 2.4 GHz chips operate on less spectrum, ~83 MHz, compared with available manufacturer specific blocks/bands adding up to ~230 MHz in UHF. And because 2.4 GHz is so dang crowded with bluetooth and WiFi thingamabobs, you rarely get all of that spectrum to yourself.

Range and in-line attenuation. Given the same transmission power, under the same conditions, a UHF microphone will provide greater range than a 2.4 GHz microphone. In our experience, many overestimate just how much range they actually need (if the stage is within 100&#; of the performer, you shoul be OK), and 2.4 GHz microphones sometimes have more powerful transmitters to compensate for the loss (The EW-D1 and DMSTetrad both have a maximum output of 100 mW, 2X the max for unlicensed UHF). You can also use a directional antenna to significantly improve range, but remember that transmission line (cable) loss is much greater at 2.4 GHz than UHF, so long cable runs are difficult.

Latency. Since all professional grade 2.4 GHz mics are digital, latency is a bit higher than UHF analog. But the delays aren&#;t all that bad on digital microphones, and don&#;t really stand too far behind UHF digital microphones. In fact, Line6 has latency that beats some UHF digital mics. Latency on 2.4 is only an issue when shows are being recorded for broadcast, or a picky artist starts complaining about monitor delay.

IT Department Wrath: 2.4 GHz is the same band that most WiFi devices use. You can&#;t always expect to waltz into a facility - especially a secure one - and power up a 2.4 GHz device without someone from the IT department hunting you down and telling you to put it away. WiFi in corporate and stadium settings is carefully calibrated and, more often than not, completely full. IT professionals have tools that let them know if something is interfering with their network.

 

BOTTOM LINE

2.4 GHz microphones are a great choice for those who only need a few channels and want hassle free setup. For those who need lots of channels and ultra low latency, top-tier UHF mics are still the best choice.

2.4 GHz audio fidelity from reputable manufacturers should be more than acceptable for the vast majority of applications.

While they may provide additional long term security over 600 MHz microphones - which will soon be illegal - they do not guarantee complete immunity from interference. A vast sea of other devices uses the 2.4 GHz band, and their numbers will only increase as the Internet of Things explodes.

 

VoIP Advantages and Disadvantages: Comparison ...

VoIP, or Voice over Internet Protocol, is a feature-packed, budget-friendly alternative to traditional systems. But is it the right communication solution for your business?

We wrote the full guide weighing the advantages and disadvantages of VoIP systems to help you decide.

VoIP Advantages and Disadvantages: Overview

Want a quick overview? Watch our three-minute video on the pros and cons of VoIP below:

VoIP Advantages

Being VoIP providers ourselves at Nextiva, it would be fair to say we know a thing or two about VoIP. Here&#;s a detailed guide to its pros and cons:

1) Lower costs

The bottom line is vital for every business, large or small. So, you have to consider every cost-saving opportunity. One way companies can realize significant cost savings is by adopting a VoIP system.

Consider this:

On average, a landline system (POTS) costs businesses $50 per line each month. This rate comprises local (and sometimes domestic) calls only. VoIP plans, in contrast, are available for less than $20 per line.

Wait, what?

That&#;s right. Going by these figures means VoIP can lower your bill by more than half of what it is right now.

It&#;s important to note that a shift to VoIP is not a guarantee that your expenses will plummet. Businesses differ, and so do their needs.

But what you can be sure about is that switching to VoIP will bring about considerable cost savings. Cost savings in VoIP come in two ways: direct and indirect.

Direct cost savings

When it comes to traditional service, a business incurs massive initial costs. Especially in the name of business phones and PBX hardware.

a) PBX costs

A PBX (private branch exchange) is an on-premise physical piece of hardware. It connects many landline phones in an office and can cost a huge sum of money. We are talking tens of thousands of dollars &#; an amount you can amortize over several years.

You may argue that analog phones cost about the same as IP phones. The exact price will differ based on the desired features.

But onsite PBX installations are a costly capital undertaking. It can go for anywhere between $500 and $2,000 per user. So even a small business with a handful of employees needs to invest in physical hardware.

VoIP networks do away with this need for extra hardware since a broadband connection powers the service.

To ease the transition in their system upgrades, such organizations could use a Session Initiated Protocol, known as SIP Trunking. A SIP Trunk acts as a digital pathway for your voice services while maintaining existing hardware in your office.

The key benefits of SIP Trunking include lower costs, easier to manage, and you can activate service instantly. Technology leaders use a SIP trunking provider for adding new voice capabilities to an existing system.

b) Copper wiring charges

Broadband connections also do away with the extra wiring because VoIP networks allow both voice and data on the same channel. In IT and telecom circles, the correct word for this is full-duplex. It&#;s the ability to send and receive voice and data concurrently. Most VoIP desk phones need only one Ethernet to be connected to it.

Power over Ethernet (PoE) enables offices to be more modular with their office staff. Additionally, those offices won&#;t need to make changes to the building&#;s electrical wiring.

Going completely wireless? Professional VoIP service is also available as an app on your computer or smartphone. VoIP&#;s flexibility is a big win for entrepreneurs and enterprises alike.

c) Calling expenses

Direct costs also come in the form of the cost of calling. VoIP calls are cheaper compared to the Public Switched Network (PSTN) or the traditional circuit-switched network by a stretch.

A large part of this has to do with the drastic fall in data carriage costs. Initially, data was priced out of the reach of most small businesses.

Even for large organizations, users had to contend with capping on enterprise internet bandwidth and broadband. Today, however, internet speeds have improved while data costs have correspondingly taken a nosedive.
Statistics reveal that small businesses using VoIP can reduce their company&#;s bill by up to 60%. They can also save up to 90% on international calls.

One easy way is to choose the right business service and VoIP provider.

That&#;s a substantial number we are talking about in any given year.

These savings go back to the abandonment of expensive ISDN (short for Integrated Service Digital Network) primary rate interfaces. Or even the dedicated lines associated with a POTS system in favor of

VoIP service. Companies that make long-distance calls outside of the United States enjoy VoIP&#;s lower costs.

Traditional service costs approximately twice as much as compared to VoIP. VoIP offers a significant benefit for businesses that operate globally.

d) Recurring expenses

A VoIP service also enables businesses to cut other ongoing expenses such as taxes, repair, and maintenance fees. VoIP providers usually roll these costs into subscription plans which, like in the case of Nextiva, can cost as little as $5 per user per month.

All these costs, combined, make VoIP service an appealing proposition for growing startups and SMBs.

Indirect cost savings

Indirect savings are more difficult to quantify, but that doesn&#;t make them any less critical for your business. Below are some of the most common areas where organizations save money long-term.

a) Savings with remote work

Switching to VoIP lets employees stay connected to the corporate system while working remotely. This is thanks to the long list of VoIP features like call waiting, auto-attendant, instant video calling, conference calling, and others not provided by traditional phones.

Studies show that this not only can increase employee productivity, but it can also cut down on utilities and office space.

A typical business can save $11,000 per person per year by merely letting them work from home 50% of the time, according to a recent analysis by Global Workplace Analytics.

b) Add-on features at no extra cost

You probably might be quick to point out that even traditional PBX supports remote working through functionalities like call transfer, group ringing, call queuing, and so on.

In essence, these features are not inherent in a standard PBX system. Rather, they are add-on features that you have to pay for separately.

By comparison, VoIP services include many of these features at no additional cost. No need to pay extra for whatever feature you think could be useful for your business.

c) Repurposed manpower

If your business relies on a secretary to handle calls and take messages, the auto attendant feature lets you repurpose that role at no additional cost. (An in-house secretary hired on a full-time basis pockets about $45K a year, which is not cheap.)

Of course, a secretary does make sense for companies taking a large number of walk-ins or large corporations with sizeable budgets.

However, smaller businesses may find it difficult to justify this kind of salary. But with the auto attendant feature a click away, you&#;ve just waived this cost.

2) Increased accessibility

Cost efficiency aside, accessibility is one of the biggest benefits of VoIP for business. One distinct advantage cloud-based VoIP service offers is the ability to make calls from anywhere.

If you have a decent data connection, you can make and receive calls for your business. And when you&#;re unable to answer the call, you can direct calls to another person or get voicemails emailed to you. A noted benefit of VoIP is the ability to take your business with you with nothing more than a softphone app.

In an increasingly mobile workforce, remote accessibility allows your business to be flexible. Mobile employees can stay productive regardless of their location.

VoIP adapts based on how your employees work. Employees don&#;t need to be physically present at the office.

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They can work on their smartphones and tablets from anywhere.

Employees can access the VoIP system from their home network.

3) Complete portability

Your number, also known as a virtual number, is completely portable. This means you can use the same number wherever you go.

For people who travel a lot, this should be more than welcome news. Better yet, in the event your business changes address, you can retain the same VoIP number.

4) Higher scalability

Scalability is another of the many VoIP advantages that make it an attractive proposition for growing businesses. While this is an often-talked-about aspect of VoIP, what does it mean exactly?

Given the option, every business owner would prefer a system that grows in step with their business.

A VoIP solution does away with having to purchase expensive hardware or a dedicated line as you grow. Think of all the possible scenarios here like you&#;re:

No matter what the scenario, toggle your preferences instantly without having to purchase additional lines or dedicated hardware.

5) Advanced features for small and large teams

With advanced features like auto attendant and call transferring, VoIP allows even a one-person operation to project the image of a larger company.

On the other hand, it can make a large enterprise feel more approachable. It&#;s all about making the best use of all the available features.

Let&#;s say you have a Charlotte-based business, but you also serve clients in a far-away state like Oregon.

By signing up with a provider like Nextiva, you get a VoIP number with the Oregon area code, although you&#;re based in North Carolina. This makes customers perceive you as a local, even though you are not.

Similarly, the auto attendant feature can make you look larger than you are. For example, you could be a sole proprietor but still set up your auto attendant to sound like you are a company with multiple departments.

VoIP offers advantages over traditional systems with its multi-party calling capabilities. Organizations large and small often need a separate conference call provider that enables many people to join the same call.

Business VoIP providers include robust conference calling features built right into their service.

6) Clearer voice quality

When VoIP service first rolled around, one of its most significant disadvantages was its weak call quality. Calls would drop for no reason, the voice quality itself was bogus, and latency was the order of the day.

Today, as long as you have a fast and stable Internet connection, voice quality should not be an issue. VoIP calls tend to be crisp and clear, with no latency issues, lag, or call dropouts. We&#;ve all been on a miserable voice and video conference before.

The key to VoIP call quality is a robust connection with good bandwidth. Without this, it can be a nightmare, especially if you often find your office making concurrent calls. There&#;s always someone who calls in with a cell , and everyone else suffers through echoes, delays, and background noise.

VoIP phones end those interruptions so you can focus on the meeting&#;s agenda. Innovations such as noise-canceling microphones and advanced audio compression enable VoIP phones to achieve superior sound quality.

7) Supports multitasking

Along with traditional calls, VoIP allows you to send documents, images, and videos all while simultaneously engaging in a conversation. So you can seamlessly hold more integrated meetings with clients or staff from other corners of the globe.

8) More flexibility with softphones

Despite the name, softphones are not hardware devices. Instead, they are programs installed on a computer or other smart devices like a tablet or smartphone.

A good example is Skype, although enterprise VoIP providers like Nextiva have their applications tailored particularly for business.

The upside to having a softphone for your business communications is manifold:

More than that, softphones allow you to be flexible. They give you access to features that support your remote work style.

9) Increased security

Most people don&#;t care to spend more time than it&#;s worth to think about the security of their system. system security is a big deal, especially for businesses. Demand for personally identifiable information (PII) has never been higher.

A typical entry point is to trick staff through fraudulent calls, typically known as social engineering.

VoIP can mitigate such security threats by leveraging the advancements made in IP technology including encryption and improved identity management. Hosted VoIP providers work around the clock to protect their networks, so you don&#;t have to.

Securing your VoIP system means you should work with a trustworthy VoIP provider that undergoes independent security audits, ensures staff practices healthy password habits, and configures automated alerts for questionable calling behavior.

Additionally, it is always advised to complete operating system updates consistently to ensure your business isn&#;t at risk through newer vulnerabilities.

VoIP Disadvantages

Everything that has an advantage has its disadvantages. VoIP telephony is not exempt from this rule.

Here are the downsides associated with the VoIP service you need to be aware of:

1) Reliance on a stable internet connection

VoIP calls travel over your internet connection, so a reliable connection is crucial for smooth operation. If your internet drops frequently, expect choppy calls or even complete outages.

A minimum upload speed of 100 kbps per device is recommended. While VoIP is efficient, low speeds can lead to dropped calls and lag.

Low latency (signal delay) and jitter (variation in latency) can also impact call quality. Think of it like a bumpy road for your voice data &#; the smoother the ride, the clearer the call.

The good news is that VoIP uses less bandwidth than you might expect, so you won&#;t need expensive internet service. A reliable plan should suffice for most users who work from home.

Types of connections best for VoIP:

For larger businesses, the bandwidth will depend on the number of concurrent calls you plan on making. The best way to determine this is to run a bandwidth test on your current network to make sure you don&#;t face VoIP issues.

2) Susceptible to latency and network jitter

Along with internet speed, two other issues can affect your communication experience: latency and jitter.

When communicating online, information travels in tiny packets and each message (whether , video, or audio) is broken into bits of data called &#;data packets.&#; Ideally, these packets travel smoothly and arrive in the right order.

Latency and network jitter happen when data packets experience delays during transmission, increasing the time it takes for information to arrive, and when packets take wrong turns or get stuck, causing delays and requiring retransmission.

These issues can arise from various factors, like a crowded internet connection, outdated equipment, or worn cables.

You can easily minimize latency and jitter for a better online experience with a few best practices:

3) Limited location tracking for emergency calls

One important difference between traditional lines and VoIP is emergency calling. With a cell , emergency services can use cell tower data to locate you in an emergency. However, VoIP calls rely on IP addresses, which aren&#;t as precise for location tracking.

While this isn&#;t a concern for most calls, it&#;s crucial for emergencies. To have help arrive quickly, keep your E-911 information updated with your current address, so emergency services can identify your location even when using VoIP.

4) Compatibility issues with some traditional equipment

Some older types of alarm systems and fax machines don&#;t work with VoIP.

There are two ways to address this:

But why do compatibility issues occur?

Traditional lines transmit analog signals, while VoIP uses digital data. This conversion process (modulation) can slightly alter the signal, causing problems with incompatible equipment.

5) Security risks

As with any internet-based technology, VoIP is susceptible to security risks such as hacking and phishing attacks. Hackers could potentially eavesdrop on calls, steal data, or disrupt service. What can you do to keep your business secure?

VoIP Advantages and Disadvantages Summarized

FeatureAdvantageDisadvantageCostLower bills, eliminates expensive hardwareRequires reliable internet connectionAccessibilityMake and receive calls from anywhereLimited location tracking for emergency callsPortabilityTake your number with you if you moveMay not be compatible with older equipmentScalabilityEasily add or remove linesVulnerable to security risksFeaturesAuto attendant, call forwarding, voicemail transcription, etc.Reliant on good internet quality for clear callsVoice qualitySuperior voice qualityJitter can cause choppy or broken audioMultitaskingSend documents and images while on callsRequires security awareness to avoid hacking and phishingFlexibilityUse softphones on computers or mobile devices

Best Practices for Maintaining VoIP Quality

When challenges creep in, you don&#;t have to look the other way. Follow these best practices to ensure smooth and reliable VoIP calls:

Making the Switch To VoIP: Set Up and Benefits

How do you switch to VoIP?

One of the key benefits of VoIP is its relative ease of use. There are three main ways to connect to a VoIP service provider:

Businesses are particularly drawn to VoIP due to its cost-effectiveness and scalability. VoIP eliminates the need for separate private branch exchanges (PBXs) and data lines, leading to significant savings on monthly bills. VoIP plans often offer features like call forwarding and voicemail at no extra charge.

Unifying voice and data on a single network ( calls, SMS, , faxes, web conferences, and more), VoIP streamlines communication for businesses. You get features like video conferencing and collaboration tools, all accessible through the internet.

VoIP can spur growth in both enterprises and SMBs, without much of a budget to work with.

Choosing the Right VoIP System

Looking at the pros and cons above, it&#;s clear that the benefits far outweigh any VoIP&#;s disadvantages. Now how do you choose the right VoIP system?

Here are some key questions to ask:

At Nextiva, we understand the importance of seamless communication for businesses of all sizes. We offer a wide range of VoIP solutions packed with features that boost your team&#;s productivity and efficiency.

Our team of experts guide you through every step of the process, from initial setup to ongoing support. We ensure a smooth transition with minimal disruption to your daily operations, allowing you to focus on what matters most &#; running your business.

To learn more about our products and what we can do to help your company, check out our business service.

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