Since it is Friday and I am bored Here's some interesting points
11 GHz Licensed Radio - 220 Mb (110 FD): -76 dBm PTP600 - 300 Mb (150 FD): -59.1 dBm - 200 Mb (100 FD): -68.1 dBm 12 Mile Shot - Availability for both systems using 2' dishes is 99.999% -- but we may need larger dishes for 5 GHz to account for interference and noise (while in the licensed band, interference and noise doesn't exist) Assuming no noise for PTP600 - 2' (28 dBi) Dishes on both sides - Aggregate Throughput - 200.68 Mb (~100 Mb Full Duplex) - 4' (34 dBi) Dishes on both sides - Aggregate Throughput - 287.69 Mb (~140 Mb Full Duplex) Now, since the PTP600 requires 30 MHz of spectrum and BOTH polarities, it's safe to assume that generally speaking, we should plan for a minimum thermal noise floor of -80 dBm - adding that into the equation, our calculation now shows the following - 2' (28 dBi) Dishes on both sides - Aggregate Throughput - 109.03 Mb (~50 Mb Full Duplex) - 4' (34 dBi) Dishes on both sides - Aggregate Throughput - 197.61 Mb (~100 Mb Full Duplex) 11 GHz Licensed Radio (no noise to worry about) - 2' (34.3 dBi) Dishes on both sides - Aggregate Throughput - 220 Mb (110 Mb Full Duplex) *NOTE: Licensed radios transmit and receive on SEPARATE frequencies...so round trip latency is ~0.4 milliseconds (~400 microseconds) per hop Now, let's look at cost PTP600 with 2' Dual Pol antennas and misc stuff: $14k PTP600 with 4' Dual Pol antennas and misc stuff: $16k Licensed Radio with 2' Dishes (Software Upgradable to 300 Mb Full Duplex) and FCC License: $12k -Jeff CTI "There is a Difference" -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Gino Villarini Sent: Friday, April 10, 2009 11:20 AM To: WISPA General List Subject: Re: [WISPA] High Throughput Licensed vs. Unlicensed IMHO the PTP600 is the best UL radio in the market... Gino A. Villarini g...@aeronetpr.com Aeronet Wireless Broadband Corp. tel 787.273.4143 fax 787.273.4145 -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Friday, April 10, 2009 11:08 AM To: 'WISPA General List' Subject: Re: [WISPA] High Throughput Licensed vs. Unlicensed >From what I understand the PTP600 is an OFDM "best effort" radio. If >the RF environment is favorable then it will pass data. If not then it slows down and/or starts dropping packets. I believe the PTP600 is also a HDX radio, is it not? Not trying to be adversarial...just interested in learning more about any UL radio that can produce 150Mbpd FDX as reliable as a licensed radio set. Anyone have a PTP600 manual they can send me? Brad -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Gino Villarini Sent: Friday, April 10, 2009 9:59 AM To: WISPA General List Subject: Re: [WISPA] High Throughput Licensed vs. Unlicensed Just the PTP600 that I think off ... 30 mhz Gino A. Villarini g...@aeronetpr.com Aeronet Wireless Broadband Corp. tel 787.273.4143 fax 787.273.4145 -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Friday, April 10, 2009 10:54 AM To: 'WISPA General List' Subject: Re: [WISPA] High Throughput Licensed vs. Unlicensed Ok, I'll bite. What UL radio set is going to produce 150Mbps FDX and at what RF spectrum cost? Brad -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Jeff Ehman Sent: Friday, April 10, 2009 9:02 AM To: WISPA General List Subject: [WISPA] High Throughput Licensed vs. Unlicensed All, This post is for those looking at putting in high throughput unlicensed radios. I can talk all day about the advantages of licensed (guarantee of 35-40db fade margin for starters) but I want to throw out some real world numbers I am seeing. Don't get me wrong, there is always a place for unlicensed radios (speed to deploy...licensed takes 4-6 weeks to build, and you can move the radios without relicensing) but there are other options on the high capacity side right now. Check out everything below because the pricing for licensed has come down tremendously over the years. Just something to mull over this weekend. THIS IS ALL IN APPLES TO APPLES. ~110mbps Licensed Radio Radio + 2 foot dished + Coordination = $9,995.00 FCC Fees = $650 per side = $1,300.00 2 Power Supplies and 2 POE Adaptors = ~$638.00 TOTAL PRICE ALL IN = ~$11,933.00 ~150mbps Unlicensed Radio 150mbps Connectorized Radio Link = ~$11,000 Dual Pol Antennas + Coax Jumpers = ~$400.00 TOTAL PRICE ALL IN = $11,400.00 -Jeff CTI "There is a Difference" ------------------------------------------------------------------------ ---- ---- WISPA Wants You! Join today! http://signup.wispa.org/ ------------------------------------------------------------------------ ---- ---- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ ------------------------------------------------------------------------ -------- WISPA Wants You! 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