Tom

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Posts posted by Tom

  1. Wireless radios use MCS rates to express a few pieces of information: the QAM modulation depth, number of spatial channels, coding rate. What do these mean? Check out our IW episode for details!

    But, the real throughput you are likely to see in a radio online interface is most likely just approaching this maximum limit. Multipath propagation, changing weather conditions, interference, physical obstructions, and antenna alignment mismatch are other factors influencing the actual throughput. In the end, you have to understand that the throughput you see depends on many factors and it should be taken as such.

  2. I understand your situation - it is very strange to see a behavior like that and I am sorry you have to deal with this. From the antenna physics standpoint - there is no way the issue you're experiencing is caused by the antennas. A simple test would be replacing the antenna in question with anything you have - non RF elements antenna - and see if you're getting the similar result. If so, then you can be sure it is the radio.

    The 5 MHz channel seeing -60 dBm noise while the neighboring channels see -95 dBm noise floor strongly point at the radio. Please do try the simple test and let us know about the progress / if MikroTik forum helps.

  3. On 11/10/2020 at 1:25 AM, JP Moller said:

    Would be cool to get the Ubiquiti CPE range in there. 

    • Rocket Prism Gen2
    • Powerbeam 5AC Gen2
    • Powerbeam M5

     

    Also, when I use the Multi CPE option, MCS rates on graph don't show any higher than 9, I would think that most modern day CPEs are up to MCS rate 15 with 2x2 streams. When I do the single CPE option and try and see what the CPE would be like at different MCS rates on the slider, it won't allow me to go any higher than 11. Seems a bit off.

    Thank you for the comments! If you read the text at the top of this thread, you'd know UBNT is not interested to provide us the data necessary to add those radios/CPEs into the calculator.

    Regarding the MCS - our calc shows them for ONE spatial channel. It is a survey tool we provide for free so you get an idea what you might expect, not a comprehensive planner with all gritty details. For more detailed settings/planning, I recommend to go with a paid tool.

    Each CPE in the dropdown menu has max MCS based on the data from the manufacturers for ONE spatial channel, so I believe it is all good. After all, if you multiply the resulting throughput by the number of channels you'll get what you're looking for.

  4. 13 hours ago, n21roadie said:

    OK Thanks for Clarifying - Can I ask is there any tool available for unseating RJ45 plugs in TwistPortTM Adaptor for RouterBOARD RB, inserting the RJ45 plug is not easy on a mast but trying to remove the RJ45 plug is extremely difficult? 

    You can do that using a thin long screwdriver that fits into the opening to press down the RJ45 clip, or anything similar to that. We do not have any special tool for this purpose.

  5. On 10/30/2020 at 7:24 PM, UintaDave said:

    Would it be possible to have multiple AP's on a site to plan what type of horns at what directions would be needed for good coverage? Like a multi AP map. The reason why is we are trying to do 60 degree frequency reuse and we may be able to do that at a certain distance with lowered TX power. Just need to see what ap's the client would see at what power from a certain point.

    Hi Dave, what you're asking about is completely sane and understandable. Our online tool however has not grown to be a 'planner' yet, it's a mere calculator, and it's a free tool. Thank you for your feedback, sometime in the future it is possible we will implement multi AP version, until then, if you have any further feedback, please share it!

  6. For PtP applications we have UltraHorn, if you are in a very noisy area, or then UltraDish 400 or 550, depending on the link budget you're running. We only manufacture antennas, so we can't recommend which radio you should use. But do ask on WISP Talk group on facebook, there are many knowledgeable people..

    We are currently working on starting a distributor in Pakistan so we don't deliver there yet. The closest distributor of our stuff is probably this one.

  7. Hi Kumail, our antennas work in 5 GHz spectrum, even if you brought optical fiber all the way to the antenna, it would not improve anything. The TwistPort adaptors are connected directly to the antennas and they introduce virtually zero loss to the signal. You're better off using a radio with a SFP port.