Hello Sholto, > I didn't realize this with ARQ FAE Patrick. If you use a SELCAL does the > answering station automatically change mode to "slave" and the > initiating station to "master" (if it was not already) ? If I use a Selective call, the addressee is the Slave and I as initiator of the QSO is the Master. This role is fixed for the duration of the QSO (no change of role).
73 Patrick ----- Original Message ----- From: "Sholto Fisher" <sho...@probikekit.com> To: <digitalradio@yahoogroups.com> Sent: Tuesday, September 15, 2009 11:38 PM Subject: Re: [digitalradio] Re: Test version of Multipsk about ARQ FAE in ALE400 > >So in ALE 400, the Master waits > > 2.5 sec and the Slave 6 sec, the goal being that at some moment the > Master > > hears the Slave or reversely to reconnect. > > I didn't realize this with ARQ FAE Patrick. If you use a SELCAL does the > answering station automatically change mode to "slave" and the > initiating station to "master" (if it was not already) ? > > Sholto > K7TMG > > > Patrick Lindecker wrote: >> >> >> Hello Mike, >> >> With Windows it is not possible to conceive synchronous system as Pactor, >> because you can't control each sound sample (you can't decide to send a >> sample at a given time) as it was possible under DOS. >> >> So only asynchronous system as Packet, Pax and ARQ FAE are possible. It >> means that there are no precise moments for which you can receive and >> transmit. It must be accepted to have provisional loss of connection due >> to >> QSB or QRM and necessarily collisions. If Master and Slave are symetrical >> (same waiting times), they are going to transmit and receive at the same >> moments and consequently never reconnect. So in ALE 400, the Master waits >> 2.5 sec and the Slave 6 sec, the goal being that at some moment the >> Master >> hears the Slave or reversely to reconnect. >> However, below -10 dB (weak signal) it is very difficult to reconnect. >> We tested this to night with Steinar (LA5VNA) by decreasing TX power down >> 5 >> watts (below it is difficult to know the power). >> >> 73 >> Patrick >> >> ----- Original Message ----- >> From: "mikenetbot" <mikenet...@comcast. net >> <mailto:mikenet213%40comcast.net>> >> To: <digitalradio@ yahoogroups. com >> <mailto:digitalradio%40yahoogroups.com>> >> Sent: Tuesday, September 15, 2009 10:05 PM >> Subject: [digitalradio] Re: Test version of Multipsk about ARQ FAE in >> ALE400 >> >> > Wow Patrick, you're really on top of things tweaking this mode. Good >> job! >> > >> > Could you explain in more detail with the "asymmetry Slave/master is >> > increased" means? Was the timing of the mode altered? >> > >> > --- In digitalradio@ yahoogroups. com >> <mailto:digitalradio%40yahoogroups.com>, "Patrick Lindecker" <f6...@...> >> > wrote: >> >> >> >> Hello to all testers, >> >> >> >> Following the previous tests (which target continues to be to test >> the >> >> reconnection in case of QRM, QSB...), I have issued a new test >> version >> >> about ARQ FAE in ALE400, >> >> Modifications: >> >> * I've reduced the detected bandwith to +/-120 Hz to avoid any off >> band >> >> RS ID, >> >> * the asymetry Slave/master is increased, >> >> * RS ID is sent at retry 3, 5, 7... >> >> >> >> Here is the Multipsk test version: >> >> http://f6cte. free.fr/MULTIPSK _TEST_15_ 09_2009.ZIP >> <http://f6cte.free.fr/MULTIPSK_TEST_15_09_2009.ZIP> >> >> >> >> Paste this adress in your Internet Explorer or equivalent. Download >> the >> >> file. >> >> Create a tempory folder (C:\TEST, for example), unzip the file in it >> and >> >> start C:\TEST\Multipsk. exe (the auxiliary files will be created >> >> automatically) . >> >> >> >> >> >> For ALE and ALE400, see: >> >> http://f6cte. free.fr/ALE_ and_ALE400_ easy_with_ Multipsk. doc >> <http://f6cte.free.fr/ALE_and_ALE400_easy_with_Multipsk.doc> >> >> http://f6cte. free.fr/The_ ARQ_FAE_beacon_ easy_with_ Multipsk. doc >> <http://f6cte.free.fr/The_ARQ_FAE_beacon_easy_with_Multipsk.doc> >> >> >> >> Experimentation of the ARQ FAE / ALE400 >> >> For experimention, once connected, it would be useful to send >> something, >> >> to slighltly change the reception frequency (to create a problem) >> and to >> >> see how works the reconnection. It would be also interesting to stop >> the >> >> TX power for about 10 seconds to see how it reconnects afterwards. >> >> Normally, it must reconnect for a S/N >= -10 dB (the S/N measure is >> near >> >> the top bar of the "Aux. functions" window). >> >> >> >> I will call, to-night, on 3585 KHz USB HF 1000 Hz AF +/- QRM, in ARQ >> FAE >> >> / ALE400 for QSO since 20h00 UTC until 20h30 UTC. >> >> PSE push on the "RX RS ID" button. >> >> >> >> Hint: on the waterfall, the beginning of ALE400 transmission seems >> to be >> >> 2 paws with 3 nails on each paw. >> >> If the AF frequency is well adjusted, the 2 blue vertical dashes must >> >> normally coincide with the 2 central nails. >> >> >> >> 73 >> >> Patrick >> >> >> > >> > >> > >> > >> > ------------ --------- --------- ------ >> > >> > Announce your digital presence via our Interactive Sked Pages at >> > http://www.obriensw eb.com/sked <http://www.obriensweb.com/sked> >> > >> > Recommended digital mode software: Winwarbler, FLDIGI, DM780, or >> Multipsk >> > Logging Software: DXKeeper or Ham Radio Deluxe. >> > >> > >> > >> > Yahoo! Groups Links >> > >> > >> > >> > >> > >> >> > > > ------------------------------------ > > Announce your digital presence via our Interactive Sked Pages at > http://www.obriensweb.com/sked > > Recommended digital mode software: Winwarbler, FLDIGI, DM780, or Multipsk > Logging Software: DXKeeper or Ham Radio Deluxe. > > > > Yahoo! Groups Links > > > > >
