-
现在大家熟悉 wifi 802.11 使用的无线电频段 2.4 GHz 和 5 GHz。LTE手机使用的 500 - 3000 MHz 更是常用,尽管通常没人注意 4G 使用的频段。 过去大家可能熟悉 100 - 10000 kHz 的广播频段。 未来我们可能会用上 5.9 GHz 频段。
- 5G sidelink
> over a short range without relyi…
-
- [ ] ref to file .md or pullRequest #: .................................................
*(à remplir quand l'issue est résolue)*
## contexte
Vélo M² has more demand than we can handle. We are or…
-
The difficulty of reporting on issues like net-effect of increased bike mode-share and why we tend to focus on news-byte-able stories such as [this](http://www.newyorker.com/news/news-desk/bicycle-cra…
-
As idea, it would be very useful for driving at night time to have "Overtaking is dangerous" indicator.
It could be displayed as an icon during navigation when at least one of the following conditi…
-
# 🚀 feature request
### Description
[I've tagged a rather dangerous place in Turkey](https://troels.arvin.dk/osm/topics/hole_in_ground_in_tyrkey/), using the using the "hazard" tag. When tagging…
-
Hitting wrong button after scoring on high can get stuck on the mid node
-
Can we please select the units the speed is displayed in?
I would like UK miles per hour, others would probably like to select different units.
-
As siloed defenses against abuse have improved, abusers have moved to multi-platform threat models. For example, a public discussion platform with a culture of anonymity may redirect traffic to YouTub…
-
https://www.openstreetmap.org/#map=19/37.40722/-79.16447
Since a lane is not defined, cars speed like they're on a highway when no cars are parked on the south side of the road. In effect it is a ~…
-
Hi,
On the Apollo D-kit, I noted there is a millimeter wave radar. But my friend told me that it should also be equipped with an ultrasonic radar for more robust performance. So, I want to know whe…