and I sent that messages via noisy 30M through Rick's station Andy K3UK
--- In digitalradio@yahoogroups.com, k...@... wrote: > > On Sat, Apr 10, 2010 at 8:30 AM, Rick Muething <rmueth...@...> 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 > :>) >
