Hi Dave, I have heard of the use of MT-63 for many years on MARS circuits, but don't think I had heard about the digital SSTV program being used. It makes tremendous sense since they are often involved in sending bulletins to their members. With one to many it is possible to have 100% ARQ with EasyPal although it is after the fact ARQ. A bit cumbersome, but practical for insuring a group receives exactly correct data.
Unfortunately U.S. hams can not use mixed phone and text digital in the HF bands unless they are sending fax/image. Since most of the NTS traffic is short text messages, we can not do that in the phone areas, so we have to confine it to the RTTY/data portions. 73, Rick, KV9U David Little wrote: > Rick, > > Army MARS is using MT-63 on mixed mode nets with some regularity. > > We also use Olivia when conditions warrant the slower speed of > transmission. > > Easypal is also being used for picture transmission, as well as text > broadcasts. > > David > KD4NUE > >
