Bruce N wrote:
- So, something in the order to 10 Mbps "full duplex" or whatever the
term is for "both ways" should be very easily achievable using the
equipments mentioned?
- Has anyone tested this for telephony application?
I have set up a couple of systems with combined voice and computer
data. The Airport/Brampton system I mentioned carried a couple of T1s
in addition to the computer data. The T1s were converted to Ethernet
packets for transport over the link.
- How is the round trip delay usually?
Well, you have line of site plus whatever latency is in the equipment
- Does very cold or hot weather have an effect on the operation? rain
or thunder? (e.g. degraded bandwidth or lots of errors in packets?)
Generally not a concern for short haul and raid attenuation depends on
frequecy. Lightning shouldn't be an issue, unless it's close enough to
cause physical damage.
, has anyone had the issue of directed "intentional" interference or
other types of interference which would make this connection any less
solid than a DSL or Rogers cable on daily or weekly basis?
That sort of interference is unlikely as you'd have to aim it at the
antenna from a location within it's beam width.
- What about NLOS solutions? Are there any viable product for that as
well? Obstacles could be tree or buildings.
Beyond a slight amount of bending around objects (refraction) microwave
is essentially line of site. Rule of thumb, if you can't see it, you
can't use it. One other thing you have to be aware of is much of the
spectrum used for point to point links requires a licence from Industry
Canada, though there is some unlicensed spectrum that can be used.
Also, as I mentioned in another note, physical installation is
important, in that you don't want the system failing due to weather
damage or worse, causing injury. In the jobs I worked on the physical
installation was done by professional antenna installers. They ensured
proper installation and grounding. Some sites also required a
professional engineer to design the installation.
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