RE: [digitalradio] Re: on another note

2009-02-26 Thread W5XR
Very interesting bit of history. I had to ask, as I used some of that old equipment back in the 50's. Thanks. Bob, W5XR _ From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of jhaynesatalumni Sent: Thursday, February 26, 2009 3:04 PM To: digitalradio@y

RE: [digitalradio] Re: on another note

2009-02-25 Thread W5XR
I'm asking. :) Bob, W5XR. _ From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of jhaynesatalumni Sent: Wednesday, February 25, 2009 8:26 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Re: on another note --- In digitalradio@

Re: [digitalradio] Re: on another note

2009-02-25 Thread Patrick Lindecker
Hello Votjech and Jim, TKS for the information. I suppose the difference must be the same as between CW (not coherent) and CCW (coherent) so a gain of several dB on the S/N. A synchronous RTTY under Windows is possible with a standard symbol synchronization (with or without a PLL which can be s

Re: [digitalradio] Re: on another note

2009-02-23 Thread Rick W
While the Pactor 2 and 3 modes are quite good, they do use a constant 100 baud signaling rate. SCS indicated a number of years ago that their tests showed that with what at that time, they considered strong DSP, the desire for improved data throughput and I think resistance to Doppler, the 100