Re: [digitalradio] Most robust digi-mode with 200 to 600 bps ?

2007-06-08 Thread Patrick Lindecker
- Original Message - From: cesco12342000 To: digitalradio@yahoogroups.com Sent: Friday, June 08, 2007 6:44 AM Subject: [digitalradio] Most robust digi-mode with 200 to 600 bps ? Question to the experts: What is the most robust digi-mode with a 400 to 600 bps raw capacity (or 200

Re: [digitalradio] Most robust digi-mode with 200 to 600 bps ?

2007-06-08 Thread Rick
Depending upon your definition of "robust," and, if you are using the modes on HF, with a wide bandwitch (voice width) ARQ mode, it would seem to be Pactor 3 which can adjust the speed to meet varying conditions. Raw speed up to SL6 at 3600 bps which can yield a net user data rate of 2722 bps.

[digitalradio] Most robust digi-mode with 200 to 600 bps ?

2007-06-07 Thread cesco12342000
Question to the experts: What is the most robust digi-mode with a 400 to 600 bps raw capacity (or 200 to 300 bps fec capacity) ? Is a boosted psk variant the best coice or is mfsk capable of such rates ? Other options ? Background: Seems someone has developed a 200bps voice codec. It's a phone