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Forums » Industry Forums » Wireless Service Providers » Signs of foliage causing dropouts of signal?
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« [Bus. Ops] Chillispot/Wifi Hotspot Management Software  
AuthorAll Replies


stargazer

@cloh.com

reply to stargazer
Re: Signs of foliage causing dropouts of signal?

When I see these fluctuations it is not rainy or windy. it is doing this on sunny calm days. I had some issues when there was no foliage but did not obtain the pinging software until after I had some foliage so I do not know if the foliage is a factor or not.

What type of units have the ultra-fast AGC?

I have been looking at the LigoWave 900 mhz units for $214 and those support WDS. Has anybody had any luck with the WDS on the LigoWave units (particularly the 900 mhz units)? If I could use WDS with these then I could have the cost almost the same having one of these units in place instead of two like I have now for my hops although I would not have a 2.4 ghz AP.
to forum · permalink · 2008-05-06 01:15:35 · Reply to this

cmaenginsb
Premium,MVM
join:2001-03-19
Palmdale, CA

 Shooting through or around any obstruction involves multi-path propagation. This is the reflection of signals by various objects in it's path such that the radio can possibly "see" more than one signal. It is possible that the multi-path that is giving you -72 goes away for a few signals to the point the radio loses connection.
to forum · permalink · · 2008-05-06 01:29:04 · Reply to this

EMC_guy

join:2007-10-13
Sharbot Lake, ON
·Rogers Hi-Speed

reply to stargazer
Another important factor for NLOS is the radio's "delay spread" specification. Higher number makes it more immune to multi-path effects.

said by stargazer :

What type of units have the ultra-fast AGC?
Most WiFi chipset companies (Atheros, Broadcom, Ralink, Realtek, Marvell) integrate transceiver with a basic AGC circuit. I am ordering them by my own perception of design quality - there is no way to improve their behaviour by WISP vendor. However they could use custom PCB design with with higher quality external transceiver and AGC and LNA. This will increase system cost.
to forum · permalink · · 2008-05-06 14:36:30 · Reply to this
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