I just did a ptp install of 5g 2ft rocket dishs at 6.47 miles and
could not see either tower.
Now I already had a ptp link to another tower from tower 1 so this helped.
I used Google Earth to map out the points and then used the ruler to
connect each ptp link.
I took the map with me on tower 1 and mounted and aligned the dish. I
just eyeballed the direction of the dish in relation to the existing
dish using the Google map. I got everything powered up and then went to
tower 2.
At tower 2 I had a landmark that I thought was close to the right
direction. Mounted dish and pointed at landmark and had a signal. I
then aligned dish while guy on ground gave signal reports.
I have not gone back up on tower 1 yet to tweak dish. I actually have a
67 signal when lingowave said it should be 57 so I do need to align dish
on tower 1.
I did not want to believe Google maps at first but when I actually got
up on tower I could tell it was about right.
I have tried using a compass but on a tower the compass will not work
correctly. Guess the metal structure throws the magnetic field off.
On 10/19/2010 10:16 AM, Mark Nash wrote:
Question: What tools do you use to blindly put up the first end of a
ptp without having a visual on the other side?
Details:
When deploying ptp dishes... One team doing both ends at different times.
The first dish must be aligned without a connecting radio at the other
end.
We know how to get uptilt/downtilt/azimuth from Radio Mobile.
Uptilt/downtilt is easy to do with a simple gauge. Azimuth is a
different story. If you can see the site that you're aiming for, no
big deal, but what if you can't?
We have a number of backhaul upgrades to do in the next few months,
and we have alot of fog here in the mornings this time of year.
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