RE: [smartBridges] Weird RSSI???

[Michael Saathoff]

Sully, I have noticed that my newer shipment of airbridge indoors seems to be much more temperature sensitive than in the past.  I've been noticing a similar issue on about half of my last order.  As an experiment, unplug your customer's router for about an hour during the hot point of the day.  Then plug it back in.  What I noticed is that the RSSI will come up to normal for a while and then drop off when the unit warms up.   55 Celsius and 131 Degrees Fahrenheit is the operating temperature they are supposed to be rated for.  Seems that the newer ones are not standing up as well as the old shipments.   --Mike -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Mark P. Sullivan Sent: Thursday, June 19, 2003 12:49 PM To: [EMAIL PROTECTED] Subject: [smartBridges] Weird RSSI??? Sorry about the screenshot pic...I really am stumped on this...and I thought this would be the only way to get my point across.   Here is a client that shows on average 72% RSSI over time.  As you can see by the pic, everyday the unit shows a degradation in RSSI, starting at around noon and then goes back up around 9 pm.  Sounds like temperature is affecting the signal??   Then...as of midnight last night, his RSSI dropped to 52% and has stayed solid at that level ever since??  He told me that he did not move the unit.   FACTS: 1. Indoor airBridge sitting in window. 2. ~ 200 yards from 150ft transmitting tower (so his unit is about 150 ft lower than the antenna) 3. Omni antenna with 7 degree downtilt with aPPo 4. Unit is on opposite side of house (non-LOS) from the antenna (I believe he is receiving his signal reflected off neighbors home - seperated by 10 ft). 5. Average temperatures here: Daytime = 78 degree Nightime = 55 degrees   Questions: 1. Would the temp of the wood home next door affect the reflection capability of the signal??  Sounds weird I know...but the cooler it is outside, the better RSSI he gets. 2. What could have caused the unit to drop to 55% RSSI at midnight last night and not come back (I did do a power reset on it with no affect).   Thanks all!!   Sully