[digitalradio] Re: Contestia / MT63 Skeds pse
Tony, Had a good copy on you in MT63 and Contestia. It took a while to get MixW set up again and my temporary rig setup is unstable on transmit. You did have a strong signal to the Gulf Coast around 2330 until my crude wire lash up came undone. Just my luck... Rich WA4SXZ --- In digitalradio@yahoogroups.com, Tony d...@... wrote: Rick, Same here; copied some of your signal on both Olivia and MFSK16. Also, nearly impossible to tune in since you have to guesstimate where to put the cursors even though you are close to 14108 +1000 Hz. Seems to tolorate some off-tuning -- about +/- 150Hz or so. I should have mentioned where the signal was centered. I'll be sure to mention that next time - I usually stick with +1000Hz. Thanks for trying Rick... Tony -K2MO - Original Message - From: Rick W mrf...@... To: digitalradio@yahoogroups.com Sent: Wednesday, March 25, 2009 9:03 PM Subject: Re: [digitalradio] Contestia / MT63 Skeds pse Tried calling CQ with Contestia 16/1000 when I first saw your e-mail post. Right now at ~ 0050Z I heard you and could only copy bits and pieces with Contestia. Switched to MFSK16 but probably not fully locked in with Multipsk which I have not used as much and more familiar with fldigi's way of teaking that mode, so tried to switch to fldigi but using new alpha software and for some reason can not get the new version to do PTT:( Can hear the signal now, but very weak (not moving the S-meter) but probably would work OK for Olivia 16/500 and maybe MFSK16 if I had HRD/DM780 up. Maybe you could try Contestia 500/16 which is about 3 dB better sensitivity. The problem with the wider Contestia is that it is not as sensitive, maybe -9 dB SNR so will not work as well with weak signals as other modes. Also, nearly impossible to tune in since you have to guesstimate where to put the cursors even though you are close to 14108 +1000 Hz. 73, Rick, KV9U Tony wrote: Skip, The band is in great shape this evening (as of 23:30 utc) but there doesn't seem to be any Contestia / MT63 ops around. I'll be QRV on 14108.0 USB for while. Glad to help out and I'll be sure to switch between modes quickly to avoid band changes. Tony -K2MO
Re: [digitalradio] Re: Contestia / MT63 Skeds pse
Rich, Had a good copy on you in MT63 and Contestia. It took a while to get MixW set up again and my temporary rig setup is unstable on transmit. You did have a strong signal to the Gulf Coast around 2330 until my crude wire lash up came undone. Just my luck... Thanks for trying om. Sorry to hear about the antenna problems and hope you get things going again. I'll be on this evening -- 14108.0 Thanks Rich... Tony -K2MO
[digitalradio] Re: Contestia / MT63 Skeds pse
QRV - 14108.0 USB - Original Message - From: Tony d...@optonline.net To: digitalradio@yahoogroups.com Sent: Wednesday, March 25, 2009 4:14 PM Subject: Contestia / MT63 Skeds pse All, Would like to run a few tests with Contestia (16/1K) and MT63 (1K) this evening. The goal is to see if sensitivity simulations compare well with on-air testing. Contestia should have an advantage since the peak-to-average output is much better. Not sure about it's QRM resistance. The MT63 mode is somewhat faster in terms of characters-per-minute, but it also has quite a bit of latency that adds to the total TX/RX turn around time. I tested both using a 100 word Pangram and found that MT63-1K (long interleave) took 50 seconds to finish the text and 61 seconds to complete. Contestia-16/1K took 64 seconds. The 8/1K Constestia mode took 43 seconds. Should be interesting to see how these modes compare. Not exactly lighting speed and not much call for this other than those who prefer high-speed chatting, but I think it's useful information nonetheless. I'll be QRV this evening - March 25/26. Skeds welcome Tony -K2MO
Re: [digitalradio] Re: Contestia / MT63 Skeds pse
Tony, I think I heard Contestia, but too weak to copy. Also, the frequency is pulled a lot by noise and static. 73, Skip KH6TY http://kh6ty.home.comcast.net - Original Message - From: Tony To: digitalradio@yahoogroups.com Sent: Wednesday, March 25, 2009 4:35 PM Subject: [digitalradio] Re: Contestia / MT63 Skeds pse QRV - 14108.0 USB - Original Message - From: Tony d...@optonline.net To: digitalradio@yahoogroups.com Sent: Wednesday, March 25, 2009 4:14 PM Subject: Contestia / MT63 Skeds pse All, Would like to run a few tests with Contestia (16/1K) and MT63 (1K) this evening. The goal is to see if sensitivity simulations compare well with on-air testing. Contestia should have an advantage since the peak-to-average output is much better. Not sure about it's QRM resistance. The MT63 mode is somewhat faster in terms of characters-per-minute, but it also has quite a bit of latency that adds to the total TX/RX turn around time. I tested both using a 100 word Pangram and found that MT63-1K (long interleave) took 50 seconds to finish the text and 61 seconds to complete. Contestia-16/1K took 64 seconds. The 8/1K Constestia mode took 43 seconds. Should be interesting to see how these modes compare. Not exactly lighting speed and not much call for this other than those who prefer high-speed chatting, but I think it's useful information nonetheless. I'll be QRV this evening - March 25/26. Skeds welcome Tony -K2MO
