http:\/\/www.answers.com\/Q\/Difference_between_ofdm_dsss_fhss<\/a><\/p>\nSecondly, is the amount of spectrum available.\u00a0 More spectrum means more channels to use, which translates into a high chance of mitigating interference. This interference can be self-induced or from external sources. To use an analogy, the more rooms a building has, the more simultaneous conversations can happen without noise in 2.4GHZ we only have 3 non-overlapping channels at 20mhz. Remember the part about more and more customers wanting more bandwidth? In the wireless world, one of the ways to increase capacity on your APs is to increase the channel width. Once you increase 2.4 to 30 or 40 MHz, you do not have much room to deal with noise because your available channels have shrunk.<\/p>\n
One of the biggest arguments in support of using 2.4GHZ for a WISP environment is the physics.\u00a0 Lower frequencies penetrate trees and foliage better. As with anything, there is a tradeoff.\u00a0 As the signal is absorbed, so is the available “air time” for transmission of data.\u00a0 As the signal travels through stuff, the radios on both sides have to reduce their modulation rates to deal with the loss of signal.\u00a0 Lower modulation rates mean lower throughput for customers.\u00a0 This might be fine for customers who have no other choice.\u00a0 This thinking is not a long term play.<\/p>\n
With LTE especially, the traditional thinking is being uprooted.\u00a0 Multiple streams to the customer as well as various paths for the signal due to antenna stacking are allowing radios to penetrate this same foliage just as well as a 2.4 signal, but delivering more bandwidth. These systems are becoming more and more carrier class.\u00a0 As the internet evolves and becomes more and more critical, ISPs are having to step up their services.\u00a0 The FCC\u00a0 says the definition of broadband is at least 25 meg download. A 2.4 radio just can’t keep up in a WISP environment.\u00a0 I am seeing 10 meg becoming the minimum customers want. Can you get by with smaller packages? Yes, but how long can you maintain that as the customer demand grows?<\/p>\n
So what is the answer? Cell sizes are shrinking.\u00a0 This is helping 2.4 hold on.\u00a0 The less expensive radios can be deployed to less dense areas and still provide decent speeds to customers.\u00a0 This same trend allows 5GHZ cells to be deployed as well. With less things to go through, 5GHZ can perform in modern networks at higher modulation rates.\u00a0 Antenna manufacturers are also spending R&D to get the most out of their 5GHZ antennas. More money in the pipeline means stronger products. My clients are typically deploying 3.65 and 5GHZ on their towers.\u00a0 LTE is changing RF WISP design and taking the place of 2.4 and 900.<\/p>\n","protected":false},"excerpt":{"rendered":"
Recently, there have been some discussions on Facebook about waining support for 2.4GHZ .\u00a0 KP Performance\u00a0recently published a Future of 5GHZ and beyond blog post. So why all this focus on 5GHZ and why are people forgetting about 2.4? To answer this question, we need to update our thinking on the trends in networks, not […]<\/p>\n","protected":false},"author":1,"featured_media":2174,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[156,2],"tags":[721,722,56,723,652],"jetpack_publicize_connections":[],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/03\/bandwidth-600x400.jpg?fit=600%2C400&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6VLMf-J9","jetpack-related-posts":[{"id":2697,"url":"https:\/\/www.mtin.net\/blog\/the-addition-of-rf-elements-horns-to-a-ptp550-link\/","url_meta":{"origin":2799,"position":0},"title":"The addition of RF elements horns to a PTP550 link","author":"j2sw","date":"December 21, 2018","format":false,"excerpt":"In a previous series of articles we talked about a new Cambium 550 link and the noise challenges we had.\u00a0 You can start your reading in Part one and Part two. 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Due to some weirdness with a server move this article has been updated at http:\/\/blog.j2sw.com\/2019\/04\/25\/small-cells-and-hybrid-networks-for-wisps-part-1\/ The never-ending goal of any Wireless Internet Service Provider (WISP) is how to get ever-increasing levels of bandwidth to clients. The always increasing demands, by customers,\u00a0 on WISPs, and ISPs, in general, are becoming\u2026","rel":"","context":"In "5G"","block_context":{"text":"5G","link":"https:\/\/www.mtin.net\/blog\/category\/wireless\/5g\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2019\/04\/Screen-Shot-2019-04-07-at-12.43.46-AM.png?fit=639%2C989&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":2105,"url":"https:\/\/www.mtin.net\/blog\/my-home-lab-testing-ground\/","url_meta":{"origin":2799,"position":3},"title":"My Home Lab\/Testing ground","author":"j2sw","date":"February 18, 2018","format":false,"excerpt":"A few days ago, my buddy, Greg Sowell posted his Mobile Home Lab. I figured I would show off the rack in my home office. This is a mixture of gear that powers the basic network for the network in my home and for testing, blog posts, support, and videos\\.\u2026","rel":"","context":"In "cisco"","block_context":{"text":"cisco","link":"https:\/\/www.mtin.net\/blog\/category\/cisco\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/02\/IMG_3522.jpg?fit=900%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/02\/IMG_3522.jpg?fit=900%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/02\/IMG_3522.jpg?fit=900%2C1200&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1458,"url":"https:\/\/www.mtin.net\/blog\/libre-and-cambium\/","url_meta":{"origin":2799,"position":4},"title":"Libre and Cambium","author":"j2sw","date":"December 12, 2016","format":false,"excerpt":"What Can Libre do for the Cambium operator? \u00a0 Libre can be setup for thresholds. \u00a0Any of the above graphs can be set up to alert based upon a threshold. \u00a0You could setup an alert that says if SMs\u00a0on an AP drop by 10% kick out an alert. \u00a0This could\u2026","rel":"","context":"In "Cambium"","block_context":{"text":"Cambium","link":"https:\/\/www.mtin.net\/blog\/category\/cambium\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2908,"url":"https:\/\/www.mtin.net\/blog\/cambium-wisp-survey\/","url_meta":{"origin":2799,"position":5},"title":"Cambium WISP Survey","author":"j2sw","date":"March 5, 2019","format":false,"excerpt":"For the second year in a row, Wireless Internet Service Providers (WISPs) around the world have shared their perspective in the WISP Survey sponsored by Cambium Networks. 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