[Tagging] antenna use key to replace some of the antenna type

[Warin]

On 02/12/18 05:49, Colin Smale wrote:
>
> On 2018-12-01 03:31, Graeme Fitzpatrick wrote:
>
>> Yep, this 
>> https://www.google.com/maps/@-28.1021508,153.4242644,3a,60y,177.95h,111.88t/data=!3m6!1e1!3m4!1sEcT3AiOK4QyKpuF45oC9Aw!2e0!7i13312!8i6656 
>> <https://www.google.com/maps/@-28.1021508,153.4242644,3a,60y,177.95h,111.88t/data=%213m6%211e1%213m4%211sEcT3AiOK4QyKpuF45oC9Aw%212e0%217i13312%218i6656> 
>> is a 2-way radio antenna of some sort, & that's about all I'm 
>> qualified, & interested :-), in saying!
> How can you see it is 2-way? AFAIK that is not a function of the 
> antenna itself, but of the equipment connected to it, probably down in 
> the building below in this case.

Given the costs of erecting such a mast (council permission, materials, 
erection etc) .. I'd think that it is 2-way, not economical for a simple 
receiver. .

Reception only antennas don't have to deal with much power - meaning 
they will not have to have large currents and voltages.
So some antennas will be distinguished visibly for reception ve 
transmission, at lest for any reasonable power level.

P.S.
Graeme I'd tag it as a man_made=mast with humm the wiki says 
tower:type=communication ... but would not mast:type=communication be 
better? Use both and cover all bases?

(Shakes head .. 'type' again!)
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