Date: Wed, 7 Mar 2007 20:34:51 -0500 From: "Yuri Lukin" <lists@swaggi.com> To: freebsd-current@freebsd.org Subject: Re: CFT: newath hal Message-ID: <20070308011813.M125@swaggi.com> In-Reply-To: <45C2A9AC.10909@errno.com> References: <45C2A9AC.10909@errno.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, 01 Feb 2007 19:02:04 -0800, Sam Leffler wrote > You can find hal version 0.9.30.7 here: > > http://people.freebsd.org/~sam/ath_hal-20070201.tgz > I was finally able to get my point-to-point link working with Ubiquiti SR9 cards and 0.9.30.7 hal (after some guidance from Sam off-list - many thanks). My original problem turned out to be hardware related, apparently you need a device that is capable to provide enough power to the minipci slot to power the 700mW SR9. The symptoms were all sorts of hardware weirdness and status codes and I kept seeing "no carrier" on one side. After moving the card to a more powerful test device, the problem was resolved. My test setup was as follows: STA side: WRAP.2C + SR9 + 900mhz 3dBi omni AP side: Soekris Net4521 + SR9 + 900mhz 3dBi omni I tested two quick scenarios: one with both STA and AP side-by-side and the other with AP & STA on two different floors. In both cases the AP was connected to an existing live network and the STA had a laptop attached to its ethernet port. I tested throughput with a large FTP transfer from a server behind the AP to the laptop (for lack of a better tool). I was actually able to achieve a higher transfer rate while going between floors. Probably due to the RF propagation patterns of the antennae and the way they were positioned in the side-by-side scenario. The throughput test yielded sustained approximate rate of 9.6Mbit/sec and 12.8Mbit/sec when side-by-side and between floors respectively. One interesting thing to note is that the STA (WRAP) side always reported an RSSI higher then the AP by about 10 points. I also grabbed output from athstats if anyone is interested. Overall, everything worked well once the hardware issue was resolved and I look forward to deploying some point-to-point 900mhz links over longer distances with some more powerful antennae. Many thanks to Sam for his work and continued support. Yuri
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070308011813.M125>