Re: [digitalradio] New modes or old modes?
Christian, From a purely nostalgic viewpoint some of the older MFSK modes like Piccolo, Coquelet Crowd could be a lot of fun to use on the amateur bands. Performance-wise they are probably eclipsed by MFSK16/Olivia but just as in Hellschreiber even CW, performance isn't everything. You could also consider Autospec, Twinplex FEC-A too. 73 Sholto K7TMG Christian Crayton wrote: If you could experiment with a mode for the first time, would you rather try a new mode like Thor, or an old-school mode like CROWD or Piccolo? I've been thinking about fiddling with FFT and programming, and have thought about bringing some of the original digital modes used by various diplomatic and military organizations back to life. A bit like Hell, but not that old school... I always get stuck between old and new, I guess that one of the things I like about amateur radio. There's about a 100-year technology range that you can play with in one afternoon!
[digitalradio] Re: Newb digital mode guy with Newb questions
Doug, You can find HF Slow Scan TV at: 3.730 LSB, 7.033 LSB (rare), 14.230 USB, 28.680 USB. These are calling frequencie. So +/-3KHz you'll find SSTV. Marc - PD4U
Re: [digitalradio] Re: Newb digital mode guy with Newb questions
14.230 USB is very active... Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: marc You can find HF Slow Scan TV at: 3.730 LSB, 7.033 LSB (rare), 14.230 USB, 28.680 USB. These are calling frequencie. So +/-3KHz you'll find SSTV.
Re: [digitalradio] Newb digital mode guy with Newb questions
try multipsk from patrick lindecker - Original Message - From: doug_helbling To: digitalradio@yahoogroups.com Sent: Tuesday, March 10, 2009 8:44 PM Subject: [digitalradio] Newb digital mode guy with Newb questions Greetings, all. I'm a rather new ham and very recent General class licensee who is very interested in digitial modes. I've acquired a RiggBlaster, fabricated a second computer-to-tranceiver control interface (home brew version of CT17 from N9ZLE) and have got Simon Brown's HRD and DM780 (awesome software so far) apparently working with my little IC-718. I've begun surfing the bands (mostly 10M and 20M) looking for signals. But I am having trouble audibly recognizing the sound of the various modes, however. I get some reasonably good signals from my modest little stealth dipoles (combo 10M/20M), but can't seem to get clean copy ... I try switching through the various digital modes, whether RTTY, PSK31*, or whatever. It could be a noise level thing. I am scratching my head at this point. I have a smattering of sample audio files of some of the modes on the disk that came with my RiggBlaster, and found a few more on KB9UKD's site here: http://www.kb9ukd.com/digital/ . Anyone have suggestions for other sources? (yeah, I can spell google ... ... but my finding so far have not been that good ). To my admittedly inexperienced ears, most of the signals I stumble across sound like like packet modes that use proprietary hardware solutions. Any other suggestions for the Newb Digital Moder looking at sound card modes? I've tried a few of the other digital mode Windoze programs, with mixed results, none as good as HRD/DM780. Should I be trying any other specific software? I've done a little homework, including reading Ford's HF Digital Handbook. I am probably doing something patently wrong. It could be as simple as my stealth antenna is too dang low to the ground and I need to get it up in the air higher to catch a decent signal. It's probably time for me to drop into the local area HAM club and pick a few brains, but I thought I'd start with ya'll here first. It's easier to appear clueless behind an email. All clues appreciated. - Doug - KE7SEI
[digitalradio] Re: Newb digital mode guy with Newb questions
--- In digitalradio@yahoogroups.com, doug_helbling doug_helbl...@... wrote: Thanks for the welcome and the great advice and counsel, Patrick/Andrew/Christian/Marc/Simon/Siegfried et al. I did some more poking around on my rig, and found that my audio input to the PC was indeed the Mic input, not Line In, as suggested more than once. Unfortunately, on this PC (a laptop), there is no Line In, only Mike In ... but I think I found a different driver for the on-board audio that will allow me to reconfigure the jack. I will definitely give that a try. If it fails, I have an older / slower desktop machine and a drawer full of decent Soundblaster PCI cards I can try instead. It's a 1GHz P3, but it should probably be strong enough for this. If that fails, I've got a dual CPU 2GHz P4 gathering dust in the corner that's just waiting for a purpose. ;-) I'll also follow up on your other great suggestions, including pointers to other tools/modes and to specific bands/freqs. Cheers and thanks again. - Doug / KE7SEI Hi Doug, Alot of good suggestions you have received; also consider using: http://www.obriensweb.com/sked/ 73, Bill N9DSJ
[digitalradio] Re: Newb digital mode guy with Newb questions
Doug, poke around the laptop a little more and see if there is boost on the Mic input. On my laptop, turning off the boost turns the mic input into the equivalent of a line input. 73, Skip KH6TY http://kh6ty.home.comcast.net
