Long-Wifi Problems
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Long-Wifi Problems
Model : WA7210N
Hardware Version : latest
Firmware Version : Latest
ISP : haztech
I have two long range wifi that connected at 2.35km MPtMP (multipoint-to-multipoint) N-LOS as following below:
1. TP-Link WA7210N + TL-2424B 24dbi antenna as receiver @ HazTech (look at figure)
Run over 27 dbm transmit power
[*]Avg Signal strength PtP at: 23-32dbi (maintained signal at 25dbi)
[*]No LOS, thats why 2.4GHz is preferred over 5Ghz (above the WA7210N is CPE510).
[*]Channel: 9
[*]Mode: 802.11bgn 150Mbps
[*]Installed at 20meters from earth-ground ontop the roof
2. Altai A2-Ei 14dbi antenna dual-band as Transmitter @ MKHTower (look at figure below)
Run over 31 dbm transmit power
[*]SSID: Mukah-Marhazli
[*]MAC Address(es): **-19-BE-30-96-84
[*]Avg Signal strength PtP at: 20-27dbi
[*]Channel: 9
[*]Mode: 802.11gn - 130Mbps (20MHz)
[*]Installed about 100m (2nd phase) from earth-ground @ 150m height 4-legged telecommunication tower.
So, the distance (via Google Earth is around 2.35km)
At first (after restarted the receiver), I had this reading while survey:
But after few times of "Refresh", I had this:
(During peakhours/daytime)
(during night-time)
Plus, the packets keep lossing everytime I (from receiver) ping'ing the Transmitter IP Address
So, I have no ideas why the ping's keep lossing AND the ping is high (normally 0-5ms, but I had 50-2000ms) however both Receiver & Transmitter are linked all the time (will not disconnected forever, links are stable). I'm not sure if the interference might cause the problem or anything else. It's been almost 3 months to find out the issues/causes but still. These are the alternatives that we had done during the issues.
Mode: bgn to n/bg (not works, keep losing packets)
[*]Channel 1-13 (not works, keep lossing packets)
[*]Re-Alignments (25dbi the highest so far where 25dbi is the exact PtP degrees)
[*]20/40Mhz to 20Mhz (not works, keep losing packets, but 20MHz is preferable due 3-times over-lapping (20Mhz) instead of 1-time over-lapping (40Mhz).
[*]Changed 2.4Ghz to 5Ghz (totally no reading due NLOS because of the obstacles; jungle)
Hardware Version : latest
Firmware Version : Latest
ISP : haztech
I have two long range wifi that connected at 2.35km MPtMP (multipoint-to-multipoint) N-LOS as following below:
1. TP-Link WA7210N + TL-2424B 24dbi antenna as receiver @ HazTech (look at figure)
Run over 27 dbm transmit power
[*]Avg Signal strength PtP at: 23-32dbi (maintained signal at 25dbi)
[*]No LOS, thats why 2.4GHz is preferred over 5Ghz (above the WA7210N is CPE510).
[*]Channel: 9
[*]Mode: 802.11bgn 150Mbps
[*]Installed at 20meters from earth-ground ontop the roof
2. Altai A2-Ei 14dbi antenna dual-band as Transmitter @ MKHTower (look at figure below)
Run over 31 dbm transmit power
[*]SSID: Mukah-Marhazli
[*]MAC Address(es): **-19-BE-30-96-84
[*]Avg Signal strength PtP at: 20-27dbi
[*]Channel: 9
[*]Mode: 802.11gn - 130Mbps (20MHz)
[*]Installed about 100m (2nd phase) from earth-ground @ 150m height 4-legged telecommunication tower.
So, the distance (via Google Earth is around 2.35km)
At first (after restarted the receiver), I had this reading while survey:
But after few times of "Refresh", I had this:
(During peakhours/daytime)
(during night-time)
Plus, the packets keep lossing everytime I (from receiver) ping'ing the Transmitter IP Address
So, I have no ideas why the ping's keep lossing AND the ping is high (normally 0-5ms, but I had 50-2000ms) however both Receiver & Transmitter are linked all the time (will not disconnected forever, links are stable). I'm not sure if the interference might cause the problem or anything else. It's been almost 3 months to find out the issues/causes but still. These are the alternatives that we had done during the issues.
Mode: bgn to n/bg (not works, keep losing packets)
[*]Channel 1-13 (not works, keep lossing packets)
[*]Re-Alignments (25dbi the highest so far where 25dbi is the exact PtP degrees)
[*]20/40Mhz to 20Mhz (not works, keep losing packets, but 20MHz is preferable due 3-times over-lapping (20Mhz) instead of 1-time over-lapping (40Mhz).
[*]Changed 2.4Ghz to 5Ghz (totally no reading due NLOS because of the obstacles; jungle)
Re:Long-Wifi Problems
As said @danymarc, it is impossible with the equipment that has, can get a good link and stable ... is the N-LoS effect the devices detect the AP equipment, they can connect, sometimes with good signal, but the conexion or comunicacion is Terrible Returning to the suggested, at the point of reception should raise more antennas to convert the N-LoS to LoS ... in the image below shows for the chosen frequency the radius of free zone fresnel that should exist, this is 8.6 m According to calculations, but should rise a little more on average 10 meters over the obstacle in the middle of the jungle, above the maximum height of the forest, raise 10 meters plus height to place the receiving antenna ... Regards... PD.. in other case, should try cut some trees in the jungle..... (sorry it's a joke...)
File:
Re:Long-Wifi Problems
So basically in my situation where PTP is linked & connected together but still the NLOS cause the instability during the transmissions eventhough the links are stable through the jungles where the spectrums were interfered by them, but why @
Johnsontp suggests the WBS210 + ANT2424MD (ISP-grade)? What he meant is, its "a bit" or "huge" improved while transmissions if apply in this situation instead of WA7210N + ANT2424B (consumer-grade)? (this interesting me, I was wondering its "a bit" improved or "huge" improved...)
Anyway, below is the result (where I used airlink & radio mobile online too) where its seems almost accurate (in case the height of the jungles is shorter than the real-world, lol).
Anyway, below is the result (where I used airlink & radio mobile online too) where its seems almost accurate (in case the height of the jungles is shorter than the real-world, lol).
File: