Yeah, it had to do with buildings with all their vertical corners and edges
diffracting everything.
I remember reading a paper on it. Not sure if anyone ever put it to good use.
FB broadcast is circular I think, so similar effects.
From: Bill Prince
Sent: Saturday, June 29, 2024 1:11 PM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG] Multipath mitigation
The dual slant is good for an urban environment where most of the surfaces are
horizontal or vertical. Not so much in a rural environment, but a flat field
comes close.
--
bp
part15sbs{at}gmail{dot}com
On Sat, Jun 29, 2024 at 11:53 AM Ken Hohhof <[email protected]> wrote:
Do I remember something about dual slant polarization was supposed to help
with multipath? I haven’t observed that to be the case.
From: AF <[email protected]> On Behalf Of [email protected]
Sent: Saturday, June 29, 2024 1:37 PM
To: AnimalFarm Microwave Users Group <[email protected]>
Subject: Re: [AFMUG] Multipath mitigation
Spacial or frequency diverse systems need two receivers. I don’t know of any
solution that just uses one receiver. If you put up two antennas and phase
them together you will just create a new pattern with higher gain in one
direction and new nulls. So it will still fade. You need two SMs and a way to
select the best one. Or maybe just go in and swap the connection between them
remotely at the right time of year. If there was an STP that would check link
quality rather than speed that could be a thing.
Best Regards,
Chuck McCown
McCown Technology Corporation
8401 N Commerce Dr
Lake Point, Utah 84074
801-250-9503 Office
435-830-4306 Cell
www.mccowntech.com
www.microtrench.pro
www.terabitnetworks.com
From: Steve Jones
Sent: Saturday, June 29, 2024 11:09 AM
To: AnimalFarm Microwave Users Group
Subject: [AFMUG] Multipath mitigation
Is there an SM side solution for this? We have a handful of customers we have
to go out twice a year to move their equipment up 5 feet or down 5 feet. In the
fall, I love to point out they just harvested the field across the road, didnt
they. theyre always "how did you know"
I could take the loss hit in many of these cases to do a splitter and diverse
antennas, but would that harm or hurt more?
Some of them we just have 2 radios installed a spring and fall radio, we just
have them swap which ones plugged in. 2 450b SMs leaves a lot of budget for
something that doesnt require touching
One of you geeks has to have come up with a solution over the years other
than truck rolls.
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