Very interesting topic - In the UK similar bands (28, 32, 40) just got allocated on a regional/national basis, and some of the prices paid were very modest. Google OFCOM and have a look if interested. One of the national spectrum winners informally offered us access to their spectrum on a "per link basis" i.e. reselling use of it to integrators or end users. Interesting model.
It is P2P LOS-only in those bands generally. P2MP is technically possible but I don't know of any equipment out there - like the old LMDS gear. You can get complete P2P links for well under US$10k, quite a bit less than that actually, and in high volume expect a good reduction from that. I will probably get into trouble here for saying that, as our own products cover those bands. </advertising> Distance-wise it's all down to rain fade, availability requirements (four or five nines required?) antenna sizes, EIRP, modulation/sensitivity and smart features like adaptive modulation and ATPC to keep the links "up" in fade conditions - and of course any restrictions the regulator puts on you. "A few miles" is realistic - depends on location. I can run a link calc if anyone's interested. For example I ran one at 26GHz, 155Mbps throughput, 60cm antennas, Rain Zone H (32mmhr) and at 8km (about 5 miles) it looks like 99.993%. Allow for adaptive modulation (drops the throughput during rain storms) and that comes quite a bit higher. I recall the CLECs (Winstar, etc) were the ones that ran into trouble building out large microwave networks in similar bands, but IMHO a lot of that was faulty business plan and network design - unable to deliver what was promised, either at all or profitably. Licensed equipment has improved hugely in throughput, spectral efficiency, uptime and of course in price since then - a sea-change in the microwave market. There are also a new breed of "all-outdoor" radios coming up which further reduce costs (equipment + installation costs) which are ideal for WISPs in particular. Am sure plenty of other readers will have some very interesting comments or experiences - and possibly corrections too - Regards Stephen Patrick ====================================== Cablefree Solutions Ltd www.cablefreesolutions.com ====================================== -----Original Message----- From: Jack Unger [mailto:[EMAIL PROTECTED] Sent: 24 April 2008 17:22 To: WISPA General List Subject: Re: [WISPA] Future -SPECTRUM MARKET PLACE Thanks for the link; here are some quick thoughts... 1. Buying (or leasing) licensed spectrum sounds good... if the spectrum and equipment costs are affordable. 2. Wouldn't it be nice to have "quick and easy", affordable access to spectrum that could be used for point-to-multipoint in a rural environment - like at 400 or 700 MHz? 3. This 28-31 GHz spectrum will probably only be useful for short-range work where there are absolutely no obstructions end-to-end (like in big city centers, etc.) jack CHUCK PROFITO wrote: > http://money.cnn.com/news/newsfeeds/articles/marketwire/0388456.htm > OR http://tinyurl.com/66rnd5 > > The nation's largest online marketplace for licensed broadband > wireless spectrum went live today, enabling businesses, government > agencies and communications service providers to quickly and easily > obtain licensed high-capacity wireless spectrum in the United States. > 28-31 GHz > > Chuck Profito > 209-988-7388 > CV-ACCESS, INC > [EMAIL PROTECTED] > Providing High Speed Broadband > to Rural Central California > > > > > ---------------------------------------------------------------------------- ---- > WISPA Wants You! Join today! > http://signup.wispa.org/ > ---------------------------------------------------------------------------- ---- > > WISPA Wireless List: [email protected] > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > -- Jack Unger - President, Ask-Wi.Com, Inc. Serving the Broadband Wireless Industry Since 1993 Author of the Cisco Press Book - "Deploying License-Free Wireless WANs" Vendor-Neutral Wireless Training-Design-Troubleshooting-Consulting FCC License # PG-12-25133 Phone 818-227-4220 Email <[EMAIL PROTECTED]> ---------------------------------------------------------------------------- ---- WISPA Wants You! Join today! http://signup.wispa.org/ ---------------------------------------------------------------------------- ---- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.4/1394 - Release Date: 23/04/2008 19:16 -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
