On 8/1/2010 7:31 AM, Steinar Aanesland wrote:
Hi Tony Have you done some test comparing ros with mods like psk31 , rtty , olivia etc?
Yes I have Steinar Tony -K2MO a5vna Steinar
On 20.07.2010 03:42, Tony wrote: > All, > > With all the attention ROS has been getting lately, I thought it would be interesting to see how the narrow mode compared to the wide version under the controlled environment of the HF path simulator. After a few hours of testing, it seems there's little difference between the two. > > The simulator indicated that they both had the same sensitivity (-15db) and essentially the same poor channel performance characteristics (see throughput samples below). In no case did one mode outperform the other to the point where it would make any real difference; both have the essentially the same wpm rate as well. > > These tests are not conclusive, but they do suggest that there may not be any real advantage in using the wide mode vs narrow under most circumstances. Of course, the simulator can only emulate the basic characteristics of the real HF channel so it would be interesting to hear from those who have compared the two on-air. > > Tony -K2MO > > __________________________________________________________ > > CCIR-520-2 POOR CHANNEL SIMULATIONS: -11DB SNR > > > ROS 2250 / 16 baud > the quick brown fox jumps over the lazy dog > the quick brown fox jumps over the lazlµog > Lghe quick brown fox jumps over the lazy dog > the quccirown fox jumps over the lazy dog > the quick brown fox jumps over the lazy dog > Âe quick brown fox jumps over the lazy dog > the quick brown fealoeumps ovahe lazEh/i > > ROS 500 / 16 baud > the quick brown fox jumps over the lazy dog > the quick brown fox jumps over the lazy dog > the quick breFn fox juo3s over tes lazy dog > the quæe t ´uls r?umps over the lazy dog > the quick brown fox jumps over the lazy dog > the quick brown f Á jumps over the lazy dog > the quick brown fox jumps over the lazy dogQo >
