n21roadie

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About n21roadie

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  1. I asked another antenna supplier about beam efficency and they responded with results for 3 frequencies 5.1ghz 54%, 5.5ghz 63% , 5.9ghz 72% My questions are (1) Is for UltraDishTM TP 550 with a "Beam Efficiency** 60%" is this the highest percentage beam efficency the antenna can achieve? (2) Is there any plans to have a deep dish design to reduce co-location interference or a dish shroud
  2. Update - The -60dBm noise floor is appearing on all RF Elements Antenna's 60° + 30° + SEC-CC-5-17, at this stage I am thinking that the issue maybe a Mikrotik ROS software glitch because the -60dBm is appearing on live production devices and they are working flawlessly since put up in the spring this year, I did some frequency tests (1) 20Mhz scan : No -60dBm, (2) 40Mhz scan: just 1 result -60dBm (3) 80Mhz scan : 2 results -60dBm, Back to Mikrotik support to comment on this issue?
  3. I have done another Frequency usage from another site and once again Noise Floor of -60 (attached screenshot !) , i had to conduct a quick test as it was a live production site! Something is seriously wrong with HG3-TP-A60 60° as this is occurring on 4 horns (3 at one site, 1 at another site) We also use Mikrotik RMB11G + M11G combination onto RF elements SEC-CC-5-17 sectors but once again they are in live production, so i will have to wait for off peak time to test!
  4. Hi, when there is 3 horns that are pointing in 3 different directions and have similar issues this is most confusing? (1) Why all at noise floor numbers at -60dBm, why not some at any other levels ? (2) A scan from a CPE pointing in same direction does NOT have any noise floor at -60dBm ? (3) Of the 20 frequencies listed above at -60dBm only 3 are used on other AP's at the site the remaining 17 frequencies are not used? (4) We have already replaced Mikrotik RMB11G + M11G and unfortunately same issue? (5) I had posted the issue on Mikrotik forum and so far haven't got
  5. I have noticed that on 3 X RF Elements TwistPort Adaptor RBC for RouterBoard+RF Elements HG3-TP-A60 60° + Mikrotik RMB11G + M11G miniPCIe there is reduced noise floor -60 ? Also noticed if I leave the frequency usage run for say 30mins the -60 frequencies listed will increase up to 8 from 1 and vary from these numbers, I counted a total 20 X -60 listed (5200-6000 scan ) As there is 3 horns with same problem is there a design issue with the horns?
  6. 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?
  7. Can someone explain what exactly this item does on a TwistPortTM Adaptor for RouterBOARD RBC ?
  8. Hi, Is there a twist port adapter available for Mikrotik MIMO 3x3 triple chain 802.11ac card in miniPCIe, R11e-5HacT5Ghz miniPCI-e, 802.11ac/a/n tripple chain, 3x MMCX
  9. We current only use for sectors - RF Elements SEC-CC-5-17 ( which I believe is now discontinued!) we space them about 1+ meters vertically apart, we have tried first generation of horns but it appears from listening to the webinars the alignment of 30/40 degree horns are super critical? Also we are a little confused by the mounting of the second generation horns ( https://rfelements.com/products/wireless-broadband/asymmetrical-horn-tp-antennas/overview#60-asymmetrical-beam-antenna-hg3-tp-a60) with asymmetric beam pattern should the longest part of the horn opening be horizontal (in
  10. Does the back shield provide any noise reduction above and below the sector?