At what level is band width being used up?

Nate The Surveyor

Well-Known Member
I'm contemplating the LS+, with T-3, and using my 35 watt radio.
Full constellation.
Here are my questions.
With narrow banding, and all the new signals, that's more data per second than ever. At what point is UHF radio faltering?
I've even heard talk about a 2 second broadcast interval, in order to get that huge pile of information across from base to rover.
Are we at the point where UHF is impractical yet? If not, when will we be there? Would 10 more sats do it?
I mean, at some point, we will either have to have a new protocol, or something.
What is the plan?
Is the plan to abandon UHF entirely? And go cell link?
We need to have an idea of the future. In 10 yrs, there may be 20 more satellites up there.
We, the end user are wanting the industry experts to "keep us in the loop".
Right now, the T-3 is being sold with internal 1 watt radio. That would be handy for corner sets. Shawn Billings seems stoked about installing cell modem into the T-3. I can see that for city surveying. But, way out in the country, past the city limits sign, there are places cell don't go. And I survey there.
Cell coverage is "growing". Maybe someday it'll be in all the earth, except Antarctica.... And then sat uplink will be the tool of choice.
Help me know the future....
It's snowing a little here.
Maybe we will wind up running 2 radios, or a modified radio, that broadcasts on several frequencies at once?
I speculate. But, speculation is a variable... The more data its based on the better.
I'm looking for more information.
Thx,
Nate
 

Matthew D. Sibole

Well-Known Member
5PLS
I use a LS+ and T3 with 35 watt radio. I’m not sure of the bandwidth question. I can say that D8PSK will broadcast all available signals at this time. We do have another protocol that can be used. The down side to changing protocols is less range. The solution to less range is higher antenna.
 

Matt Johnson

Well-Known Member
5PLS
At what point is UHF radio faltering?

You can see some radio stats in Base/Rover Setup by clicking on the button above the radio parameters box. If channel loading is near 100% then there is not enough bandwidth.

UHF2_20210112-12.48.10.png
 
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