[MLB-WIRELESS] wifi cards for sale

Tue May 11 15:11:26 EST 2010

Hi Shaun,

Therein lies the danger – some 900MHz cards are down-converted 802.11g, so you use the 802.11g drivers and select from the normal set of channels 1 thru 13.

Inside the device, it translates those channels to some 900MHz spectrum.  The problem is that you have no guarantee that the channel 1 on the 802.11g scale is within the 915 – 928 MHz range (or any other channel selection of course)

Odds are very much ON that several of those channels would be outside the allowed range since they are separated by 5MHz, and there simply isn’t enough width in that 900MHz class license band to fit them all in! ;-)

In fact many of them will allow you to select below and/or above the legal range.  If the drivers allow you to choose by frequency, at least you have a reasonable chance of avoiding trouble from the ACMA.  Motorolla canopy 900MHz product is notorious for this – it allows the user to select as low as 908 (from memory) and well inside the Vodafone licensed band.  I know of two wireless ISPs that have been nicked for doing that, and I’m sure they are not alone! ;-)

Cost one of them $15K fine for a second offense – they could lose their carrier license for a third! :-o

Cheers!

Mike.

From: melbwireless-bounces at v2.wireless.org.au [mailto:melbwireless-bounces at v2.wireless.org.au] On Behalf Of Shaun L. Clarke
Sent: Tuesday, 11 May 2010 2:42 PM
To: Peter Long; melbwireless at melbournewireless.org.au
Subject: Re: [MLB-WIRELESS] wifi cards for sale

That looks like a narrow frequency band.

Are there several 802.11 ‘channels’ or is it the entire band that is used up?

I suppose though that with a directional point-to-point link you shouldn’t get too much interference from other sources.

Regards,

Shaun Clarke CTS
IT/AV Technician

Personal Mobile: 0405 533 641
Email: shaun.clarke at vssec.vic.edu.au

Victorian Space Science Education Centre
at Strathmore Secondary College
Address: 400 Pascoe Vale Road, Strathmore VIC 3041, Australia
Phone: (03) 9379-3456
Fax: (03) 9374-3855
Web:  <http://www.vssec.vic.edu.au> http://www.vssec.vic.edu.au

From: melbwireless-bounces at v2.wireless.org.au [mailto:melbwireless-bounces at v2.wireless.org.au] On Behalf Of Peter Long
Sent: Tuesday, 11 May 2010 1:56 PM
To: melbwireless at melbournewireless.org.au
Subject: Re: [MLB-WIRELESS] wifi cards for sale

According to the ACMA site it seems legal.

Device 
Frequency band (MHz) 
Maximum equivalent isotropically radiated power (EIRP) 

Frequency hopping transmitters and digital modulation transmitters 
915 to 928 
1 watt (frequency hopping transmitters must use a minimum of 25 hopping frequencies) 

http://www.acma.gov.au/WEB/STANDARD/pc=PC_1768

--- On Tue, 11/5/10, Shaun L. Clarke <Shaun.Clarke at vssec.vic.edu.au> wrote:

From: Shaun L. Clarke <Shaun.Clarke at vssec.vic.edu.au>
Subject: Re: [MLB-WIRELESS] wifi cards for sale
To: "masked at internode.on.net" <masked at internode.on.net>, "melbwireless at melbournewireless.org.au" <melbwireless at melbournewireless.org.au>
Received: Tuesday, 11 May, 2010, 10:46 AM
What are the legalities of using 900MHz gear in Australia?

Shaun Clarke CTS
IT/AV Technician

Personal Mobile: 0405 533 641
Email: shaun.clarke at vssec.vic.edu.au <http://au.mc331.mail.yahoo.com/mc/compose?to=shaun.clarke@vssec.vic.edu.au> 

Victorian Space Science Education Centre
at Strathmore Secondary College
Address: 400 Pascoe Vale Road, Strathmore VIC 3041, Australia
Phone: (03) 9379-3456
Fax: (03) 9374-3855
Web: http://www.vssec.vic.edu.au <http://www.vssec.vic.edu.au/> 

-----Original Message-----
From: melbwireless-bounces at v2.wireless.org.au <http://au.mc331.mail.yahoo.com/mc/compose?to=melbwireless-bounces@v2.wireless.org.au>  [mailto:melbwireless-bounces at v2.wireless.org.au <http://au.mc331.mail.yahoo.com/mc/compose?to=melbwireless-bounces@v2.wireless.org.au> ] On Behalf Of masked at internode.on.net <http://au.mc331.mail.yahoo.com/mc/compose?to=masked@internode.on.net> 
Sent: Sunday, 9 May 2010 12:20 PM
To: melbwireless at melbournewireless.org.au <http://au.mc331.mail.yahoo.com/mc/compose?to=melbwireless@melbournewireless.org.au> 
Subject: [MLB-WIRELESS] wifi cards for sale

hi,

Z-Com 900MHz 802.11g Mini-PCI WiFi

900MHz! works a treat!

http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem <http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=180503913371&ssPageName=STRK:MESELX:IT> &item=180503913371&ssPageName=STRK:MESELX:IT

Senao NL-3054MP Aries Mini-PCI's

http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem <http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=180503557598> &item=180503557598

(see 'sellers other items' for other listings of the same cards)

i'll post some more up there.  i do have other sorts of cards and routerboards etc, you can inquire
if you are interested in something in particular.

notice i'm using a new ebay account now, the old i was selling with was my mums! :P

re,

michail.

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