<div dir="auto">Yep, spendy.</div><div dir="auto">The point to point stuff at gigabit speeds is priced as an alternative to fiber, so it's cheap compared to fiber, but we're on a much smaller budget in ham land :)</div><div dir="auto"><br></div><div dir="auto">3.5 GHz is a good choice.</div><div dir="auto">I helped implement a 3.5GHz ham system in the Bay Area. Two sectors on Black Mountain above Palo Alto, and a point to point link to Berkeley hills.</div><div dir="auto">We used the ubiquiti radios and found a stash on eBay.</div><div dir="auto"><br></div><div dir="auto">Randy</div><div dir="auto"><br></div><div><br><div class="gmail_quote"><div>On Wed, Jun 14, 2017 at 8:21 PM Bryan Fields <<a href="mailto:Bryan@bryanfields.net">Bryan@bryanfields.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 6/14/17 10:38 PM, Randy Neals wrote:<br>
> Hi All,<br>
><br>
> I spotted some interesting 10 GHz commercial Point-to-Point equipment that<br>
> might work on our 3cm ham band. <a href="http://www.mimosa.co/products/b11" rel="noreferrer" target="_blank">http://www.mimosa.co/products/b11</a><br>
><br>
> The radio spec say is physically supports 10.0-11.7 but the FCC version<br>
> available in the US is locked to 10.7-11.7 GHz. The radio is TDMA-FD so<br>
> presumably no diplexers or band filters like classic duplex uWave gear to<br>
> get in the way of operating lower in the band.<br>
<br>
So it's about 3k for a pair of radios, then you need antennas, about $1800 for<br>
a pair of HP dishes (though in the ham band we don't need that).<br>
<br>
That's about $5000 for a link. It's not cheap by any means, and while cheap<br>
for microwave, it's not cheap for hams :)<br>
<br>
<br>
> The company is in Santa Clara..it might be possible to convince them to<br>
> support a version that works on our 3cm ham band, 10.0-10.5 GHz. Countries<br>
> in ITU Region 1 and 3 allocate 10.0-10.45 to Fixed service, so this may be<br>
> as easy as buying the version with International software.<br>
> It's a bit pricey, but could be good for backbone links, leaving 5 GHz for<br>
> access nodes.<br>
<br>
3 GHz works, and it's cheaper, under $1k per link.<br>
<br>
><br>
> As I was researching this, I realized that Mimosa was the company that<br>
> petitioned the FCC to reallocate the 10GHz ham band. Using their equipment<br>
> on our 3cm band, and then showing how we're actually using the 3cm band<br>
> might be fun! :-)<br>
<br>
They claim their founder _was_ a ham, so it's ok to be anti-ham.<br>
<br>
><br>
> Radio<br>
> MIMO & Modulation 4x4:4 MIMO OFDM up to 256QAM<br>
> Bandwidth Single or Dual 20/40/80 MHz channels<br>
> Frequency Range 10000-11700 MHz restricted by country of operation<br>
> Max Output Power 24 dBm<br>
> Sensitivity ( MCS 0 ) -87 dBm @ 80 MHz<br>
> -90 dBm @ 40 MHz<br>
> -93 dBm @ 20 MHz<br>
<br>
<br>
<a href="https://fccid.io/2ABZJ-100-00036" rel="noreferrer" target="_blank">https://fccid.io/2ABZJ-100-00036</a><br>
<br>
Internal pics<br>
<a href="https://fccid.io/pdf.php?id=2829434" rel="noreferrer" target="_blank">https://fccid.io/pdf.php?id=2829434</a><br>
<br>
User manual<br>
<a href="https://fccid.io/pdf.php?id=2829440" rel="noreferrer" target="_blank">https://fccid.io/pdf.php?id=2829440</a><br>
<br>
An atheros and transverter.<br>
<br>
--<br>
Bryan Fields<br>
<br>
727-409-1194 - Voice<br>
<a href="http://bryanfields.net" rel="noreferrer" target="_blank">http://bryanfields.net</a><br>
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</blockquote></div></div>