Re: [DSTAR_DIGITAL] Mobile High speed data

2009-03-15 Thread iw2oaz
Quoting Don Russell w9...@live.com: Anyone try the 128K high speed data while mobile? I mean in a vehicle above say at a constant 30-45 mph. What about at higher speeds? Would it work to say a helicopter or airplane orbiting over the city where the access point is? Or would the Doppler

Re: [DSTAR_DIGITAL] Mobile High speed data

2009-03-15 Thread Pierre Thibaudeau
Today, 07:47 -0400, iw2...@iq2gm.com wrote: Quoting Don Russell w9...@live.com: Anyone try the 128K high speed data while mobile? I mean in a vehicle above say at a constant 30-45 mph. What about at higher speeds? Would it work to say a helicopter or

Re: [DSTAR_DIGITAL] Mobile High speed data

2009-03-15 Thread Mike Albertson
Our limited experience so far has required directional antennas to go 3 to 4 miles on ground level up to 2 stories. Higher elevation with a clear path got 17 miles with omnidirectional gain antennas (4 segment colinear). The cases were: 12 element Yagi at 5ft to omnidirectional at 35

Re: [DSTAR_DIGITAL] Mobile High speed data

2009-03-15 Thread Nate Duehr
On Mar 15, 2009, at 4:11 AM, Don Russell wrote: Anyone try the 128K high speed data while mobile? Due to the fact that it's a much wider signal than 1.2 DV, and the receiver at that width is not as sensitive, it takes a very solid signal into the Access Point/DD system to work well. With