Also NTS Digital is using the various modes of Pactor, primarily Pactor I and Pactor II.... Many of the six MBOs in Eastern Area NTS D have the fancy SCS Modems although a few are still restiricted to Pactor I using the old PK-232 MBX... For the most part the MBOs run Classic Winlink (i.e the versions before Winlink 2000) as we prefer to forward via RF as opposed to internet.... We used to run AMTOR and Clover but gave those modes up...The reason we don't use a mode such as Olivia or MT 63 is because we prefer the error correction of a burst mode such as Pactor... The Digital Relay Stations that connect to our MBOs again are running Pactor but many of them are using Airmail.... Eastern area NTSD averages typically 10,000 to 12.000 messages a month.
73 Dave WB2FTX Eastern Area Digital Cooridnator- NTS Digital ----- Original Message ----- From: Rick W To: digitalradio@yahoogroups.com Sent: Thursday, March 05, 2009 10:32 PM Subject: Re: [digitalradio] NTS Digital 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 > > ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.8/1986 - Release Date: 03/05/09 19:32:00
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