Microwave is used for long haul wireless transmission for the ultra-latency crowd. Free space laser has more bandwidth, but is sensitive to fog and at least until the last few years much less range. I sell ULL routes to financial players. A 10 meg microwave circuit CME/Secaucus Equinix ranges from $185K per month to $20K a month.

From: NANOG <nanog-bounces+rod.beck=unitedcablecompany.com@nanog.org> on behalf of Joe Hamelin <joe@nethead.com>
Sent: Saturday, June 20, 2020 10:19 PM
To: Alejandro Acosta <alejandroacostaalamo@gmail.com>
Cc: NANOG list <nanog@nanog.org>
Subject: Re: 60 ms cross-continent
 
On Sat, Jun 20, 2020 at 12:56 PM Alejandro Acosta <alejandroacostaalamo@gmail.com> wrote:

Hello,

  Taking advantage of this thread may I ask something?. I have heard of "wireless fiber optic", something like an antenna with a laser pointing from one building to the other, having said this I can assume this link with have lower RTT than a laser thru a fiber optic made of glass?


See: Terrabeam from about the year 2000.

--
Joe Hamelin, W7COM, Tulalip, WA, +1 (360) 474-7474