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clanon
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Everything posted by clanon
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PS: the cPE210 with a better antenna could have worked better than the 5ghz one...imho 15 dbi at least and Free LineOfSight...
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what are the Huawei specs...model (that's HALF the network...) walls take at least 3db (depending in lots of factor Thickness materials metal is worse) the cpe has a lot of gain and needs a perfect alignment...but the router you are accesing needs to be free of metal obstacles on the LineOfSight...if possible otherwise you end up pointing to reflections and quality degrades a lot (passing vehicles cut MY connection sometimes Line of sight obstructed)
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Transformed from dwg , 9mm to reflector , 1.5mm FR4. ant24-1800.cst
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MikroTik QRT 5 is a dual-polarization 5 GHz microstrip panel antenna with a gain specified up to 24 dBi and integrated radio at just 31×32×5 cm size The plastic case looks quite robust and UV resistant. The microstrip antenna array inside consists of 64 elements (8×8), which result in 10.5° beamwidth (-3 dB). There is also a MikroTik RB911G-5HPnD-QRT board, which features a 2×2 MIMO 802.11an radio (AR9342 SoC) with 30 dBm tx power. The antenna is connected with two short MMCX pigtails.
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i'll say all Dielectric Boom tube...Polycarbonate (ABS) for sure...
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Integrated LNA amp for Interference finding...All PET PC Boom tube...? Catalogo-Antenne-di-Misura-e-Monitoraggio-Monitoring-Protel-023.pdf
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couldn't find it (was on a catalog) this is similar https://www.protel-antennas.com/files/22-Amplified-portable-antenna-ARK103XZ-PROTEL-HANDHELD-INTERFERENCE-FINDER-GSM-LTE-DCS-UMTS-data-sheet.pdf https://www.protel-antennas.com/protel-ark103xz-amplified-directional-measurement-antenna-band-lte-dcs-umts-1350-2200-mhz.html
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Trying to make a "GOOD" Lpda , SCIFI VIVALDIs from RFSPACE have NO GAIN (under 1GHZ) , Chinese LPDAs have LOTS of LOSSES and mismatch...50 ohms FLAT ALL band , just a peak close to 1ghz unavoidable on this antennas...
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@eco32 you NEED to try CST...is very intuitive and fast...and better results... backfiring CIRCULAR PATCH should have better shape...LOBE
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add a rim and ring...
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PES (Styrofoam) low density...1.075-1.1 Dielectric Constant (almost NO LOSSES)
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http://www.radioamatoripeligni.it/i6ibe/turnhard/turnhard.htm
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i wasn't blaming anyone , just asking for YOUR opinion...
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without 90 degrees phase shift (at half wave center Feed)...two crossed dipoles are NOT Circular Polarized...
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https://www.wifi-antennas.com/topic/2548-catherine-antenna/
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without the delay is only two dipoles one Vertical the other Horizontal (Crossfeeding High Isolation BAD) @Harry36
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Circular pol means : there is 90 degrees delay between feeding points...to force a rotating 1/4 rotation on Each quarter wave (half dipole)...imho built in the reflector (strips)
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Looks like each one receives a different pol- at different timing... Anti-phase it seems LHCP and RHCP...
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Each one has a 90 degrees orthogonal difference . Polarization is the same but Phase is 90 degrees off ...
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probably for high band...(only directors) lower band MUST BE Tubes both crossed and combined on one output is 33 cm by 1,34 meters
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