The speeds look similar to Pactor 3 if the S/N ratios are as high as they seem to be. By the time you reach 15 dB S/N P3 should be close to maxing out at 2722 bps uncompressed, therefore throughput of around 5000 bps or 5000 wpm at maximum.
The MIL-STD-188-110A (older) specification has speeds up to 4800 bps. The MIL-STD-188-110B (3G) specification adds speeds up to 9600 bps. The STANAG 4539 specifications have three waveforms include three levels: - a very robust low speed 75 bps that uses the STANAG 4415 PSK data modem waveform - a medium speed MIL-STD-188-110B waveform - a high speed waveform from MIL-STD-188-110B, Appendix C, providing 3200 to 12800 bps There are others including a QAM modem approach (Reference my ALE Protocols and Terms document on the hfdec yahoogroup site for more details). Overall it sounds pretty exciting to me as I know how well 1000 bps worked with SCAMP and I was quite surprised and pleased how well it worked with good signals. It will be interesting for you to provide us with more information with the weaker signals, especially those below zero dB S/N since that is the where the difficulty lies. 73, Rick, KV9U Les Keppie wrote: > > I DONT THINK YOU LOOKED AT THE FILE SIZES AND THE TRANSFER TIMES > OF THE FILES LISTED BELOW ---- READ ALL OF BELOW THROUGH > FOR FILE SIZES AND TIMES TAKEN (Copied from previous email) > > Connecting to 'TEST4'... - 29/09/2007 - 11:19:09 AM > RFSM-8000, version 0.508, user license: BETA-TESTER - 29/09/2007 - > 11:19:09 AM > Maximum supported connection speed - 8000 bit/sec - 29/09/2007 - 11:19:09 AM > Connected to 'TEST4' - 29/09/2007 - 11:19:17 AM > 'TEST4' accept FTP-requests. - 29/09/2007 - 11:19:17 AM > 'TEST4' accept MAIL-requests. - 29/09/2007 - 11:19:17 AM > Receiving file 'ATT00017.jpg', size 28623 bytes, from 'TEST4'... - > 29/09/2007 - 11:20:10 AM > File 'ATT00017.jpg' received succesfully, all time 173 sec, average > speed 1322 bits/sec - 29/09/2007 - 11:23:20 AM > Receiving file 'ATT00023.jpg', size 39781 bytes, from 'TEST4'... - > 29/09/2007 - 11:24:18 AM > File 'ATT00023.jpg' received succesfully, all time 259 sec, average > speed 1225 bits/sec - 29/09/2007 - 11:28:55 AM > Receiving file 'ATT00011.jpg', size 16126 bytes, from 'TEST4'... - > 29/09/2007 - 11:29:40 AM > File 'ATT00011.jpg' received succesfully, all time 45 sec, average speed > 2846 bits/sec - 29/09/2007 - 11:30:42 AM > Receiving file 'ATT00020.jpg', size 35064 bytes, from 'TEST4'... - > 29/09/2007 - 11:31:37 AM > File 'ATT00020.jpg' received succesfully, all time 257 sec, average > speed 1090 bits/sec - 29/09/2007 - 11:36:11 AM > 'TEST4' request to read download directory 'C:\RFSM8000\TRANSMIT'... - > 29/09/2007 - 11:36:19 AM > Request for sending file 'filelist' to 'TEST4'... - 29/09/2007 - 11:36:19 AM > Sending file 'filelist', size 643 bytes, to 'TEST4'... - 29/09/2007 - > 11:36:29 AM > File 'filelist' sended succesfully, all time 14 sec, average speed 350 > bits/sec - 29/09/2007 - 11:36:44 AM > 'TEST4' request to get file 'C:\RFSM8000\TRANSMIT\#70726153230- de > VK2KDK-birds and bee.jpg'... - 29/09/2007 - 11:37:47 AM > Request for sending file '#70726153230- de VK2KDK-birds and bee.jpg' to > 'TEST4'... - 29/09/2007 - 11:37:48 AM > Sending file '#70726153230- de VK2KDK-birds and bee.jpg', size 67971 > bytes, to 'TEST4'... - 29/09/2007 - 11:38:09 AM > File '#70726153230- de VK2KDK-birds and bee.jpg' sended succesfully, all > time 405 sec, average speed 1342 bits/sec - 29/09/2007 - 11:44:54 AM > Receiving file 'ATT00017.jpg', size 28623 bytes, from 'TEST4'... - > 29/09/2007 - 11:45:36 AM > File 'ATT00017.jpg' received succesfully, all time 90 sec, average speed > 2531 bits/sec - 29/09/2007 - 11:47:24 AM > Receiving file 'ATT00035.jpg', size 32482 bytes, from 'TEST4'... - > 29/09/2007 - 11:48:12 AM > File 'ATT00035.jpg' received succesfully, all time 117 sec, average > speed 2214 bits/sec - 29/09/2007 - 11:50:26 AM > Receiving file 'Hi-Q Hat + Hot Rodz addition.JPG', size 1089463 bytes, > from 'TEST4'... - 29/09/2007 - 11:51:39 AM > > Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/drsked/drsked.php Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
