T-3 Base Mask

[Tyler]

We are contemplating putting in a permanent base on top of the roof of our building. The top of trees on two sides of our unit are at about a 20 degree from where we plan on setting the base. The remainder of the sky is wide open. Would the trees on the two sides of the base introduce too much error and a new base location be needed or could we increase the mask setting in the unit from 10 degrees to 20 degrees?

If we setup a base to test this location as permanent station, what statistics and results would we look for?

 

[nusouthsc]

Tyler,
I am by no means an expert . But 20 degrees seems very excessive. One thing you could do to test is run several long static files and compare residuals.
We have a Delta-3S with a G5T antenna mounted at our office. Ours has been set at 5 degrees the whole time and we did have a few trees obstructing on one side. Last year we had some trees cut after a bad storm and its mostly clear now. I did not see a noticeable difference in my static files and I did about 60 hours total a month to check.

 

[Tyler]

20 degrees does seem excessive. Is there anyway to block out only the parts of the view that are obstructed by trees? We have a few static sessions of ~8 hours on the roof that I'll check the residuals of. I'll compare them to some of our base locations that have been more open. If the office is not a good location for a permanent base we will need to rethink our strategy.

Does anyone have a permanent base setup away from their office? How much does that slow down your work?

We know a few people on the same street that have a better sky view and we could possibly setup a permanent base there but it is a few blocks away.

 

[Tyler]

 

[Tyler]

This was from a 10 hour session on the roof. The only downside was that this was using a tripod and the roof is not completely stable. If we were to setup a permanent base it would be mounted to the side of the building.

 

[Alexey Razumovsky]

Justin/DPOS engine uses 12 degrees cut off elevation mask. We found its the best setup.

 

[nusouthsc]

20 degrees does seem excessive. Is there anyway to block out only the parts of the view that are obstructed by trees? We have a few static sessions of ~8 hours on the roof that I'll check the residuals of. I'll compare them to some of our base locations that have been more open. If the office is not a good location for a permanent base we will need to rethink our strategy.

Does anyone have a permanent base setup away from their office? How much does that slow down your work?

We know a few people on the same street that have a better sky view and we could possibly setup a permanent base there but it is a few blocks away.

Tyler,
Are you going to dedicate a receiver for the base or use a T3 that can be mobile when needed? If you dedicate a receiver (Delta 3s perhaps) in the Netview and Modem software you can setup remote access to check settings. Obtaining a static IP was one of the most frustrating parts for us.

 

[Tyler]

Yes, we'd be using a T3 for the base. It has a sim card in it with the static IP. We were using the sim card in a verizon jetpack before but switched it into our T3.

 

[nusouthsc]

If you are going to be setting up the base semi-permanent at another site I could see that getting old. We used have a mount made here at the office that we could set up/take down as needed for an LS+ and that got rather old but was nice at times. Sounds crazy but remembering to take it down was an issue and during the summer I was the one tasked with running out before a thunderstorm and taking it down hit. At minimum, a permanent antenna (G5T perhaps) would save a lot of trouble by being able to leave it mounted. They are pretty reasonable, I think around $2k with the snow cone and 30' cord.