Hello Andy, > assume that CALL ID in MULTIPSK using Reed Solomon ID is robust than > WSPR , but I am wondering just how much less ? If WSPR is able to detect of -25 dB, the Call ID is only able to detect -13 dB signals (it begins to decode from -18 dB but not below). However, as WSPR it is a free-error transmission.
As it is short (3.3 s), it's much more to introduce oneself (Call sign + Locator). It could be used for beacons alone or to test a mode (Throbx, Olivia) inside a sequence... in this way: <TX><CALL ID><RS ID> CQ CQ CQ CQ CQ CQ DE F6CTE F6CTE +K <RX> The program switches to TX, sends the Call ID then the RS ID (to make switch the other Ham to the desired mode ) and a message. Afterwards, the program switches to RX. The other Ham must leave RS ID and Call ID buttons pushed. Note: the Call ID structure is fix now, but there are still some small bugs. 73 Patrick ----- Original Message ----- From: "Andrew O'Brien" <k3uka...@gmail.com> To: <digitalradio@yahoogroups.com> Sent: Saturday, December 20, 2008 3:49 PM Subject: [digitalradio] Caller ID in Multipsk > The caller ID function in the latest test version of Multipsk works > very well. I wonder if anyone has tested it for how well it does for > weak signals ? I am wondering if Patrick has invented something that > could be used in a manner similar to WSPR in beacon mode (not QSO WSPR). > > The data captured via Multipsk is displayed as follows > > 14:39:23 EA2AFR-IN83MH -13 990 Hz > > Not unliked WSPR. It certainly is a lot quicker than a WSPR > transmission , just 3 seconds as opposed to two minutes in WSPR. I > assume that CALL ID in MULTIPSK using Reed Solomon ID is robust than > WSPR , but I am wondering just how much less ? > > > > It would be interesting to see if the caller Id function within > Multipsk could be developed in to some auto-spotting database much > like the WSPR.org database with automatic uploads of calls received to > a central webpage > > Andy K3UK > > > > ------------------------------------ > > Announce your digital presence via our Interactive Sked Page at > http://www.obriensweb.com/sked > > > > Yahoo! Groups Links > > > > >
