I have yet to use an Alvarion radio or for that matter one without RSSI.
However, I would think that using SNR is a perfectly reasonable way to
align a link.
-Matt
G. villarini wrote:
Patrick,
Rssi is very important to determine if a link is properly aligned and its
achieving its link budget.
Altough we don’t use alvarion(yet), we are currently researching backhaul
options and the way we comission ptp links here is that we run the calcs on
radio mobile and spreedsheet to determine the link budget in advance to
implementation. Snr won’t help much there...
Gino
-----Original Message-----
From: "Patrick Leary"<[EMAIL PROTECTED]>
Sent: 9/24/06 11:32:47 AM
To: "WISPA General List"<wireless@wispa.org>
Subject: RE: [WISPA] vendor specs
Brad,
Software controlled dual polarity might be nice. Not sure why you
consistently harp on us though since no one else has it either other
than your longtime preferred vendor.
I am not as convinced about your complaint about RSSI. Is it just used
to RSSI like being used to feet in stead of meters. But also, isn't RSSI
less sophisticated and a less useful number than SNR since it is only an
indication of receive signal without discounting noise? SNR provides a
more accurate representation of wanted signal since it discounts for
unwanted noise.
Not sure of your complaint about the RJ45. No one else remarks about it
and we don't have issues with water intrusion. In other words, it works
well. If the opening was enlarged you increase the potential for water
intrusion.
Following the color code? Yes, as an old cabling guy, I would agree. But
I am pleased to note that one is really running out of things to harp
about when one continually highlights this a major deficiency.
So now that I have responded here to your public mail, will you please
admit that even if the VL came to life and saved your kid from a flood
you complain that it was not fast enough and that it ripped the kid's
clothes. I wish some day you'd accept that your customer chose VL and
you should take the opportunity to learn about it instead of still
trying to make it fail so you can get them to switch to Trango. Even the
best radios will have room for improvement and every decent brand should
have something special that differentiates it. You work so hard to find
fault you miss opportunities to become proficient in more than one
brand. So accept our invitations to allow engineer visits and accept our
invitations to be trained. Know what I mean?
Patrick Leary
AVP WISP Markets
Alvarion, Inc.
o: 650.314.2628
c: 760.580.0080
Vonage: 650.641.1243
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