10 Sep
2021
10 Sep
'21
12:07 a.m.
I ran a 150km link between Southern Vancouver Island and Northwest
Washington State for a few years. About 50% of the distance was over
sea. We used 5GHz with 3 ft dishes on both ends.
The link worked reasonably well, there were huge deviations in signal
strength though, we needed to account for 20 dB of fade on any given
day, sometimes we would loose 10dB of signal in a matter of minutes.
Overall the link was reliable; 15mbps was our average speed on a 'bad'
day, and we could push as much as 40 on a 'good' day.
Chris
VE7ALB
On 09/09/2021 05:41, Toussaint OTTAVI via 44Net wrote:
Hi all,
Some friends from south of France submitted the idea of a 5 GHz link
between France and Corsica. The distance is 200-250 km, mostly over
the sea. It's far longer than what I could see on HamNetDB, for
example. But it's shorter than WiFi world records (some of them
attempted more than 10 years ago between Italy and Sardinia). I never
attempted links longer than 40km, so I don't have any experience. And
we don't have any SHF expert locally...
1/ Do you think a permanent and stable 250 km link over the
Mediterranean sea is doable ? Are some of you using such long links in
5 GHz ? If so, could you share your technical experience here ?
2/ Are there any people from Italy on this list ? Are there any
volunteers between Genova and Roma to attempt a link with the East
coast of Corsica ? If it works, would there be an interest in
establishing a permanent link ?
Thank you for your comments,
73 de TK1BI
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