Dear Friends, I wanna buy a free license radio with more that 150Mpbs capacity (full duplex), and I found a company in middle east who has Spectrum-DMR-104-1 available right now, any body has experience about that? Is it really 300Mbps radio? Thanks -- Regards, Shahab Vahabzadeh, Network Engineer and System Administrator Cell Phone: +1 (415) 871 0742 PGP Key Fingerprint = 8E34 B335 D702 0CA7 5A81 C2EE 76A2 46C2 5367 BF90
I have no experience with Spectrum. As an alternative you could look at UBNT. They have some nice radios you could explore with speed. The AirMax and AirFiber product lines you might want to explore. I only run standard data over the radios no voice or video yet. I have only deployed in a PTP setting. Most wireless radios are advertised by the aggregate amount of bandwidth they can support versus what you will see via full duplex. When exploring wireless radios if you need the link to be 150Mbps full duplex then you need to look for a radio that can sustain at least 300Mbps or higher. Radios by UBNT are typically 100Mbps to 150Mbps and some people bond the radios together using LACP on the switch to achieve higher speeds. However, with AirFiber they have a 1.4Gbps radio now using 24 Ghz license for free the distance is only 13 km though. Where are you deploying this link? What's the distance? Is this a PTP link? HTH Otis -----Original Message----- From: Shahab Vahabzadeh [mailto:sh.vahabzadeh@gmail.com] Sent: Monday, August 13, 2012 12:58 PM To: nanog@nanog.org Subject: Any Idea About Spectrum-DMR-104-1 ?! Dear Friends, I wanna buy a free license radio with more that 150Mpbs capacity (full duplex), and I found a company in middle east who has Spectrum-DMR-104-1 available right now, any body has experience about that? Is it really 300Mbps radio? Thanks -- Regards, Shahab Vahabzadeh, Network Engineer and System Administrator Cell Phone: +1 (415) 871 0742 PGP Key Fingerprint = 8E34 B335 D702 0CA7 5A81 C2EE 76A2 46C2 5367 BF90
There are a lot of factors to consider when trying to use ISM band for high bandwidth... 1. What kind of distance do you want to cover? 2. Is this point to point, or point to multipoint? 3. Directional or Omni? 4. Antenna Height, Fresnel Zone, Noise Floor, other path interference, etc. The 5.725-5.825Ghz band is used by 802.11a/n and is the only unlicensed spectrum around 5.8Ghz. A 300Mbps symbol rate should be achievable with wideband channels in that frequency range. As an example, an Apple Airport Extreme can do better than 150Mbps full duplex on 802.11n/5Ghz. Owen On Aug 13, 2012, at 10:57 , Shahab Vahabzadeh <sh.vahabzadeh@gmail.com> wrote:
Dear Friends, I wanna buy a free license radio with more that 150Mpbs capacity (full duplex), and I found a company in middle east who has Spectrum-DMR-104-1 available right now, any body has experience about that? Is it really 300Mbps radio? Thanks
-- Regards, Shahab Vahabzadeh, Network Engineer and System Administrator
Cell Phone: +1 (415) 871 0742 PGP Key Fingerprint = 8E34 B335 D702 0CA7 5A81 C2EE 76A2 46C2 5367 BF90
Dear Owen, Thanks for your reply, in reply to your factors: 1. 1~2 Kilometers 2. PTP 3. Directional 4. 29db Dish (single or dual) Thanks On Tue, Aug 14, 2012 at 1:13 AM, Owen DeLong <owen@delong.com> wrote:
There are a lot of factors to consider when trying to use ISM band for high bandwidth...
1. What kind of distance do you want to cover? 2. Is this point to point, or point to multipoint? 3. Directional or Omni? 4. Antenna Height, Fresnel Zone, Noise Floor, other path interference, etc.
The 5.725-5.825Ghz band is used by 802.11a/n and is the only unlicensed spectrum around 5.8Ghz. A 300Mbps symbol rate should be achievable with wideband channels in that frequency range. As an example, an Apple Airport Extreme can do better than 150Mbps full duplex on 802.11n/5Ghz.
Owen
On Aug 13, 2012, at 10:57 , Shahab Vahabzadeh <sh.vahabzadeh@gmail.com> wrote:
Dear Friends, I wanna buy a free license radio with more that 150Mpbs capacity (full duplex), and I found a company in middle east who has Spectrum-DMR-104-1 available right now, any body has experience about that? Is it really 300Mbps radio? Thanks
-- Regards, Shahab Vahabzadeh, Network Engineer and System Administrator
Cell Phone: +1 (415) 871 0742 PGP Key Fingerprint = 8E34 B335 D702 0CA7 5A81 C2EE 76A2 46C2 5367 BF90
-- Regards, Shahab Vahabzadeh, Network Engineer and System Administrator Cell Phone: +1 (415) 871 0742 PGP Key Fingerprint = 8E34 B335 D702 0CA7 5A81 C2EE 76A2 46C2 5367 BF90
In a message written on Thu, Aug 16, 2012 at 11:30:40PM +0430, Shahab Vahabzadeh wrote:
Dear Owen, Thanks for your reply, in reply to your factors:
1. 1~2 Kilometers 2. PTP 3. Directional 4. 29db Dish (single or dual)
I know someone already pointed you to the product, but that just screams like what you want is the Ubiquity airFiber product. You should easily get near the max 1.4Gbps throughput at 1-2km if you have clear line of site. It's "plug and play", in that you should have to do very mimimal tuning to get that performance. Mostly making sure the two units are aligned properly. I've not gotten a quote myself, but the Internet forums suggest the gear is $3k for a single link (so two units). Just to do high quality 801.11n with dish antennas would probably cost $1k or more. The 24Ghz band they use should be worldwide license free (check with your country) and also have less interference than the 5Ghz band. http://www.ubnt.com/airfiber -- Leo Bicknell - bicknell@ufp.org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/
On Aug 16, 2012, at 12:39 , Leo Bicknell <bicknell@ufp.org> wrote:
In a message written on Thu, Aug 16, 2012 at 11:30:40PM +0430, Shahab Vahabzadeh wrote:
Dear Owen, Thanks for your reply, in reply to your factors:
1. 1~2 Kilometers 2. PTP 3. Directional 4. 29db Dish (single or dual)
I know someone already pointed you to the product, but that just screams like what you want is the Ubiquity airFiber product. You should easily get near the max 1.4Gbps throughput at 1-2km if you have clear line of site. It's "plug and play", in that you should have to do very mimimal tuning to get that performance. Mostly making sure the two units are aligned properly.
I've not gotten a quote myself, but the Internet forums suggest the gear is $3k for a single link (so two units). Just to do high quality 801.11n with dish antennas would probably cost $1k or more.
The 24Ghz band they use should be worldwide license free (check with your country) and also have less interference than the 5Ghz band.
+1 for ubiquity. I've had excellent results with their products though I have not used the Air Fiber product specifically and haven't tested any of the long-haul 1Gbps products. Owen
On Thu, Aug 16, 2012 at 01:10:42PM -0700, Owen DeLong wrote: [...]
+1 for ubiquity. I've had excellent results with their products though I have not used the Air Fiber product specifically and haven't tested any of the long-haul 1Gbps products.
I've many friends that are happy with ubiquity and I've been looking forward to hearing about any Air Fiber installations. Anyone actually have one in production?
On 8/16/12 2:35 PM, John Osmon wrote:
On Thu, Aug 16, 2012 at 01:10:42PM -0700, Owen DeLong wrote: [...]
+1 for ubiquity. I've had excellent results with their products though I have not used the Air Fiber product specifically and haven't tested any of the long-haul 1Gbps products.
I've many friends that are happy with ubiquity and I've been looking forward to hearing about any Air Fiber installations.
Anyone actually have one in production?
The word is unless you were one of the chosen ones or placed your order the day of the announcement they're still trying to fill preorders right now. ~Seth
participants (6)
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John Osmon -
Leo Bicknell -
Otis L. Surratt, Jr. -
Owen DeLong -
Seth Mattinen -
Shahab Vahabzadeh