On Sat, Apr 10, 2010 at 8:30 AM, Rick Muething <rmueth...@cfl.rr.com> wrote: > > > 5) Scanning has been used in the past to improve the utilization of HF > Pactor server stations but can be an issue. Pactor has some but limited busy > channel detection capability. WL2K is now looking at and testing > alternatives to the conventional scanning used in Pactor. The new WINMOR > protocol allows more options and experimentation. > > a. RMS WINMOR server stations [Beta operation started in January 2010] > operate on ONE frequency which can be changed (on the hour) during the day > (most use 1 - 3 frequencies over a 24 hour day). The frequency list clients > use indicate which frequency is in use on which UTC hour. The client software > (RMS Express) shows users ONLY those frequencies in current use along with > the propagation prediction to the remote server stations. Users can refresh > their server station list over the air or over the internet if available. > > b. WINMOR uses an effective "channel busy detector" to warn users if a > channel appears busy in the bandwidth of interest. The detector isn't perfect > (neither is the human ear!) but it can detect most modes even in weak > conditions (SSB, CW, PSK, Pactor, Olivia, WINMOR etc). > > c. The RMS WINMOR stations (servers) also have a similar DSP based > detector which can block a reply to a connect request. This will prevent for > example answering a connect request "over" an existing session/QSO not > audible to the station originating the connect request (hidden transmitter > situation). We're still experimenting and refining this but it definitely > helps avoid accidental interference. > >
I can attest to the above., especially the ONE frequency part. The system works well Andy K3UK via HF WINMOR :>)
