Re: Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration

2009-08-08 Thread Phil Williams
, 2009 2:48 PM Subject: [Norton AntiSpam] Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration Very interesting. What simulator are you using? philw de ka1gmn On Fri, Aug 7, 2009 at 3:59 AM, Tony d...@optonline.net wrote: All, It's interesting to see how

Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration

2009-08-08 Thread Rik van Riel
Patrick Lindecker wrote: As a thumb rule: For a same sub mode: Contestia has a double speed (+3 dB) but only 1.5 dB of loss in term of minimum S/N compared to Olivia. So it seems to be a better compromise. Assuming that the S/N is constant. In practice the S/N seems to vary wildly from

Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration

2009-08-08 Thread Simon (HB9DRV)
Contestia and RTTYM are variants of the character set used with Olivia. Olivia is 8-bit, Contestia is 7-bit and (I think) RTTYM is 5-bit or 6-bit. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Rik van Riel r...@surriel.com Assuming that the S/N is constant.

Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration

2009-08-08 Thread Patrick Lindecker
- Contestia Tone / Bandwidth Configuration Patrick Lindecker wrote: As a thumb rule: For a same sub mode: Contestia has a double speed (+3 dB) but only 1.5 dB of loss in term of minimum S/N compared to Olivia. So it seems to be a better compromise. Assuming that the S/N is constant

Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration

2009-08-08 Thread Claudio
To: digitalradio@yahoogroups.com Sent: Saturday, August 08, 2009 8:21 PM Subject: Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration Patrick Lindecker wrote: As a thumb rule: For a same sub mode: Contestia has a double speed (+3 dB) but only 1.5 dB of loss in term of minimum S/N

[digitalradio] Olivia - Contestia Tone / Bandwidth Configuration

2009-08-07 Thread Tony
All, It's interesting to see how the different Olivia mode configurations compare when put through the HF path simulator. I ran Contestia through the simulator this evening and these are the results. Olivia 16/500 is shown for reference. CONTESTIA 500Hz Tones BandwidthChar/s

Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration

2009-08-07 Thread Simon (HB9DRV)
Exactly what I would have expected, nice to see that you get these results. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Tony Hope you all find it interesting... Tony -K2MO

Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration

2009-08-07 Thread Phil Williams
Very interesting. What simulator are you using? philw de ka1gmn On Fri, Aug 7, 2009 at 3:59 AM, Tony d...@optonline.net wrote: All, It's interesting to see how the different Olivia mode configurations compare when put through the HF path simulator. I ran Contestia through the

Re: Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration

2009-08-07 Thread Tony
things evenly matched. Tony -K2MO - Original Message - From: Phil Williams To: digitalradio@yahoogroups.com Sent: Friday, August 07, 2009 2:48 PM Subject: [Norton AntiSpam] Re: [digitalradio] Olivia - Contestia Tone / Bandwidth Configuration Very interesting. What simulator