With 900, the reason, we can substitue High gain Yagis, is their is no rule
to prevent the higher gain antennas as long as power is reduced.
My point is their are two set of rules.
One for conforming to proper power levels.
One for conforming to Certified antennas.
Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband
----- Original Message -----
From: "Anthony Will" <[EMAIL PROTECTED]>
To: "WISPA General List" <[email protected]>
Sent: Monday, January 02, 2006 10:40 PM
Subject: Re: [WISPA] FCC regs question
This only applies to the 2.4ghz ISM band there are different rules for the
900mhz and 5.8 ISM band plus different rules for the UNII rules.
The ISM rules state, 900mhz is a total of 36dbm EIRP no mater if it is
multi point or PtP. 5.8ghz is 1 watt power and as large a antenna you can
put on it for PtP and 36dbm total EIRP for multi point.
This is how I understand the rules. You are not technically allowed to
swap out other manufacture antenna's only allowed to use lower gain
antenna from the same manufacture this is of the same basic type that has
the type acceptance registered with the FCC for any given radio
transmitter. For example if a pacwireless 18dbi flat panel is registered
you can use any flat panel from pacwireless that is 18dbi or less in gain.
Now there has been a lot of "unofficial" statements by members of the FCC
that have stated twists or bends in the antenna selection part of the
rulings but I have yet to see anything that states otherwise on a official
document.
Anthony
Tom DeReggi wrote:
Its spelled out towards the end of the document.
30 db max radio power + 6 db antenna. PTP 3 to 1 rule applies, to use use
much larger antennas at CPE side, and every 3 db antenna gain, minus 1 db
radio gain at CPE side.
Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband
----- Original Message ----- From: "Jason" <[EMAIL PROTECTED]>
To: "WISPA General List" <[email protected]>
Sent: Monday, January 02, 2006 1:59 PM
Subject: [WISPA] FCC regs question
List,
Can anyone tell me what the current FCC regs are regarding EIRP? When
choosing an antenna radio combo are we limited to the maximum antenna
gain that has been approved for use with that particular radio? If so,
it eliminates the Super Range 2 radio for me since it's approved for use
with only a 2 dBi antenna. Or are we limited to the calculated EIRP
(the -1 dB for each 3dBi above 6dBi algorithm), which, would allow the
use of a 16 dBi antenna with this radio? I have read and read and it
seems that this is very open to personal interpretation. Also it's
difficult to determine what the latest ruling is.
Jason Wallace
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