Hello Dave, Thank you for the detailed explanation!
Very interesting - I will check out the link you provided. 73, Dale - WA8SRA On Sat, Feb 24, 2024 at 8:23 PM Dave New, N8SBE <n8...@densbe.com> wrote: > Dale, > > It's peer-to-peer Winlink stations using VARA HF modulation, in the 500 > Hz BW mode. See www.winlink.org for details. > > The EDM-Target-Stations (EDM = Emergency Digital Messaging) group was > preparing for an exercise today, from 6am to 6pm local time (in each > time zone), to practice sending check-in messages via VARA HF P2P to > target stations from field stations. This is in case of widespread > Internet outages, especially in a disaster area, to enable written > traffic to/from that area. VARA HF is a software modem substitute for > the pricey PACTOR modem hardware, and is finding favor with amateur > stations and government SHARES stations as a lower-cost alternative. > > What you were hearing were folks unfamiliar with the process of setting > up their stations to do P2P messaging, to give them an opportunity to > work the kinks out before the actual exercise today. > > Also, the assigned frequencies were moved on 30M to avoid other digital > services, like FT8/FT4, etc., so that's likely why you noticed a change > in the location of digital traffic on that band. > > It's not easy finding open frequencies for an exercise of this sort, > especially because today was the NA RTTY QSO Party (which doesn't take > place on 30M because it is a contest) that completely wiped out the > digital portions of the bands that we normally use for Winlink > messaging. So it was difficult to work around the KW RTTY stations, to > say the least. > > The EDM-Target-Stations group is looking for more volunteers to run > Winlink VARA HF P2P target and field stations. They have an email group > on groups.io that you can join. > > 73, > -- Dave, N8SBE > > On 2024-02-24 13:07, Dale Boresz wrote: > > Hello, > > > > For the last week or so, I've been seeing/hearing a lot of digital data > > on > > the lower 20 KHz of the 30m band. This activity has increased > > dramatically > > over the last couple of days. ... > > Dale - WA8SRA > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
