Thursday, September 27, 2018

iPhone XR trades 4x4 MIMO for greater antenna gain and higher EIRP

iPhone XR (model A1984, FCC ID BCG-E3220A) made a somewhat surprising early appearance in the FCC OET database this morning, since the phone will not be available yet for another month.  Typically, iOS devices have their authorization filings posted right before the devices go up for sale to the public.

Upon examining the certified lab tested RF data and crunching some numbers, what is immediately apparent is that the iPhone XR has -- as expected -- dropped the 4x4 MIMO antenna design from the iPhone XS and XS Max in favor of a standard 2x2 MIMO antenna.  This tradeoff of fewer antennas and MIMO channels, though, ostensibly has allowed for greater antenna gain and, concomitantly, higher radiated output power compared to those same metrics on the iPhone XS and XS Max.

Further analysis may be forthcoming, but for now, the graphs of the iPhone XR EIRP and antenna gain largely can speak for themselves.



For graphs and analysis of iPhone XS and XS Max lab tested figures, see my previous articles (1, 2, 3).

Source: FCC OET

51 comments:

  1. I am thinking may be it is not only 4x4.

    The iPhone X also has problems as compared to iPhone 8. I am think if these has to do with its Stainless Steel casing, which ALL X / Xs series are using.

    ReplyDelete
  2. So, I'm struggling to intrepret the data. It appears to me that the XR would have substantially better functionality than XS in low signal areas using 600 and 700 mhz ( bands 12, 17, 71)?

    Any thoughts on how the XR might compare to the iphone 8+ or Samsung S9 in regards to functionality? I am primarily referring to the ability to make and recieve calls in very low signal areas with some rudimentary web browsing.

    ReplyDelete
    Replies
    1. This is not an answer to anyone’s question just simply trying ask ask a question to this subject. I’ve been looking into this iPhone XR for a couple weeks. I’ve heard different things about the reception (lte). How is it now on 11/20/2018?

      Delete
  3. Could you please explain how to read the graphs?
    Is closer or above to 200mW better?

    ReplyDelete
    Replies
    1. My articles really are not intended for the general public and typical cellphone users, but rather for those who already have reasonable understanding of cellular RF communications. So, I may not always provide basic explanations of my analyses and graphs. That said, yes, uplink maximum EIRP closer to or greater than 200 mW generally is better.

      AJ

      Delete
  4. I purchased the iPhone XR and have been very pleased with the performance in a very rural area. I was able to make calls and maintain an lte connection when several other phones could not even make a call.

    Thanks for making the information more accessible.

    ReplyDelete
  5. I realize this is off-topic, but would you be able to assemble graphs for the Note 9 Snapdragon model?

    ReplyDelete
  6. So if I'm reading this XR graph correctly in 2020, compared to the ones you've done on the XS and XSMax, does this mean that the 2020 class action lawsuit against Apple by XR owners over "poor antenna and reception issues vs XS and XSMax" is doomed to fail, given that the XR with 2x2 MIMO looks better on paper than the "higher end" phones with 4x4 MIMO? Or do I totally not understand what you're showing here? Looking to buy a XR for use mostly in a rural area and news of the lawsuit is giving me pause - don't want to buy a phone if it won't work where I need it to.

    ReplyDelete
  7. technology helps in different ways nitrile examination gloves manufacturer uses latest tech to make their products

    ReplyDelete
  8. I think I have never observed such web journals ever that has finish things with all points of interest which I need. So sympathetically refresh this ever for us. This is very interesting, Feel free to visit my website; 바카라

    ReplyDelete
  9. i am a content creator, and created lost of video on free version of filmora x. i was scrolled your website and get coupon for Filmora 11 i used it and it work you can also grab a huge discount on this software.

    ReplyDelete
  10. It is an app that is used for the purpose of screen recording as well as webcam recording.screen-o-matic alternatives by these tools explaination video making to easy with its free version no need to signin with all.

    ReplyDelete
  11. lots of people want to resister domain in budget. GoDaddy 99Cent Domain provide me the to connect domain in budget.in starting i was confuse now i take a step to go with godady service.

    ReplyDelete
  12. last night I damaged my phone now I was looking for a tool that helps me to recover data from my damaged device I used a free version of the Recoverit Alternative. But it didn't work in full fletch.and l0oking for more similer too in urgent

    ReplyDelete
  13. I praise your view as an expert on the subject you wrote. How can it be so easy to understand? In addition, how good the quality of information is. I know your efforts to write this article better than anyone else. Thank you for sharing a good message. 메이저토토

    ReplyDelete
  14. I’m just commenting to let you know what a excellent discovery my cousin’s girl encountered going through your web site. She noticed several details, which include how it is like to possess an ideal coaching spirit to let others smoothly learn a number of grueling subject areas. You actually did more than visitors’ desires. Thank you for distributing these great, dependable, informative and unique tips on that topic to Tanya. iPhone 7s cover

    ReplyDelete
  15. I really enjoyed reading this blog. It was explained and structured with perfection. 바카라사이트인포

    ReplyDelete
  16. Awesome post, the information you shared was resourceful and I enjoyed reading it, thanks for sharing. 바카라사이트윈

    ReplyDelete
  17. I will really appreciate the writer's choice for choosing this excellent article appropriate to my matter. We recommended to you our safest Online games. go here: 바카라사이트

    ReplyDelete
  18. This is such a great resource that you are providing and you give it away for free. I love seeing blog that understand the value of providing a quality content.

    ReplyDelete
  19. Would like to see some other posts on the same subject! Feel free to visit my website; 카지노사이트

    ReplyDelete
  20. I like what you guys are up also. Such smart work and reporting! Carry on the superb works guys I have incorporated you guys to my blogroll. Feel free to visit my website; 카지노사이트

    ReplyDelete

  21. Excellent goods from you, man. I have understand your stuff previous to and you are just extremely excellent. 카지노사이트

    ReplyDelete
  22. By the way 파친코, there should be recommendations or advice for sharing new blog owners 경마. I understand the subject, but I only asked questions about it 토토. Cheers!

    ReplyDelete
  23. I’m sorry if you didn’t like my straightforward answers.토토사이트

    ReplyDelete
  24. We are a projected organization offering a full range of Best Construction Company in Pakistan services and investment management while maintaining a solid foundation of trust and mutual respect generated through a positive relationship with clients, architects, engineers, subcontractors, and suppliers.

    ReplyDelete
  25. I’d like to thank you for the efforts you’ve put in writing this blog..Visit my website>>

    ReplyDelete
  26. The information provided was very helpful and articulate. Keep recording.

    ReplyDelete
  27. READING THIS ARTICLE IS SO AMZING, THERE IS SUCH A GREAT INFORMATION THAT I WAS LOOKING FOR.

    ReplyDelete
  28. Apple phones has less EIRP. Its good to hear the news. Thanks for sharing this beautiful tech post. Good informative post. Keep sharing more interesting and informative blogs like this. Suffolk DUI Lawyer Virginia

    ReplyDelete
  29. Thank you so much for sharing. Nice to reading blog post, Keep up good work
    abogado de accidentes de camiones cerca de mí

    ReplyDelete

  30. Very rapidly this web site will be famous among all blogging

    ReplyDelete
  31. wiwavelength" or what it might refer to. If you could provide more context or information about what you'd like a review for, I'd be happy to help with a review or answer any questions you may have. what is the penalty for reckless driving in virginia

    ReplyDelete
  32. Abogado de Accidentes de Motocicleta Virginia
    The statement about the iPhone XR's trade-off between 4x4 MIMO, greater antenna gain, and higher EIRP (Effective Isotropic Radiated Power) is clear and concise, but it requires a certain level of technical knowledge to be accessible. The trade-off explanation should include a brief explanation of antenna gain and EIRP, as well as the benefits for users in terms of improved connectivity and signal strength. Comparative analysis should be conducted to provide context. The real-world impact of these changes could translate into better user experiences, such as faster data speeds or more reliable connections. Network compatibility should be discussed, and the statement should address how this technical change might influence consumer decision-making when choosing a smartphone. Future developments in wireless technologies and standards should be discussed, and sources and references should be provided. Visual aids should be used to visualize the concepts of antenna gain and EIRP. Potential downsides or trade-offs should be mentioned, and practical examples should be used to illustrate how users might experience the benefits of these changes. Reader engagement should be encouraged, and the statement should be kept updated about technical developments in smartphones and wireless technology. Proofreading should be done to maintain professionalism. By addressing these points, the statement about the iPhone XR's trade-off can become more informative and accessible to a wider audience.

    ReplyDelete
  33. The text provides a technical explanation of MIMO, antenna gain, and EIRP, as well as a detailed explanation of the trade-offs between the iPhone XR and 4x4 MIMO. It discusses the impact on performance, such as signal reception, data speeds, and overall connectivity, and the user experience, such as improved call quality, faster downloads, and better coverage in specific scenarios. It also compares the iPhone XR's antenna configuration to other iPhone models to provide context and ensure readers understand the terms used in the statement.New York Divorce No Fault

    ReplyDelete
  34. The iPhone XR's strategic trade-off, substituting 4x4 MIMO for increased antenna gain and higher Effective Isotropic Radiated Power (EIRP), marks a calculated move toward optimizing signal strength and coverage. By focusing on amplifying antenna gain and EIRP, Apple aims to enhance network performance and reliability, ensuring a more robust and consistent connection for users. This deliberate shift underscores Apple's commitment to refining wireless capabilities, promising users improved connectivity and better overall network experiences, despite the adjustment in MIMO configuration.

    ReplyDelete
  35. Excellent blog got many updates iPhone, I'm very exciting to read this blog waiting for more interesting. I wanted to drop you a line to let you know that I find your blog informative and engaging.How much does a reckless driving ticket cost in virginia

    ReplyDelete
  36. Also check my website Your article is very helpful and very Good

    ReplyDelete
  37. I have some extraordinary substance. Keep doing stunning Thank you!!

    ReplyDelete
  38. whoah this weblog is excellent i really like reading your articles.

    ReplyDelete
  39. Stay up the good work! You know, many people are looking round for this info.

    ReplyDelete
  40. back every day. It’s great to have a place like this. I’ll come often. Great work!

    ReplyDelete
  41. Thanks on your marveous posting! dependably manufacture astonishing entities.

    ReplyDelete
  42. The iPhone XR has shifted its focus from 4x4 MIMO to greater antenna gain and higher EIRP, enhancing its wireless performance. This strategic move optimizes signal strength and coverage, particularly in challenging environments. This ensures reliable connectivity for streaming media, making calls, and browsing the internet. The iPhone XR's robust wireless experience caters to modern smartphone users' demands, making it a compelling choice for those prioritizing connectivity and performance.
    How to File for Divorce in New York State

    ReplyDelete