Re: [Flexradio] [OT] RTTY/PSK31 Only 25 Watts?

2006-10-01 Thread Jim Lux
At 11:06 AM 10/1/2006, Lyle Johnson wrote: > >> The theory behind PSK shows that it is indeed far better than CW. > >> > > Begging to differ, but PSK is not "better" than CW, if we are talking > > weak signal detection. > >Just a point of interest: in the NASA deep space network, working with >trul

Re: [Flexradio] [OT] RTTY/PSK31 Only 25 Watts?

2006-10-01 Thread A.R.S. - W5AMI
Interesting discussion. I have to agree that CW is probably the most "reliable" mode of communication - STILL. Hell, we can rap on a wall with an SOS, but not so with PSK or other modes. And I've not tried modulating the hull of a ship with my voice to let someone outside know there are people i

Re: [Flexradio] [OT] RTTY/PSK31 Only 25 Watts?

2006-10-01 Thread Lyle Johnson
>> The theory behind PSK shows that it is indeed far better than CW. >> > Begging to differ, but PSK is not "better" than CW, if we are talking > weak signal detection. Just a point of interest: in the NASA deep space network, working with truly weak signals, PSK is used rather than carrier on

Re: [Flexradio] [OT] RTTY/PSK31 Only 25 Watts?

2006-10-01 Thread Simon Brown \(HB9DRV\)
Hah! I was comparing PSK vs. standard CW (say 20 WPM), of course you couldn't read my mind (what there is left). I agree about the weak signal CW work, very interesting indeed. I am currently designing and implementing a new digital software program, I want to incorporate slow speed CW detectio

Re: [Flexradio] [OT] RTTY/PSK31 Only 25 Watts?

2006-10-01 Thread W2AGN
Simon Brown (HB9DRV) wrote: > The theory behind PSK shows that it is indeed far better than CW. > > Begging to differ, but PSK is not "better" than CW, if we are talking weak signal detection. Indeed, with software such as "Argo" and VERY slow CW, signals can be copied well below the noise. Ev

Re: [Flexradio] [OT] RTTY/PSK31 Only 25 Watts?

2006-10-01 Thread Simon Brown \(HB9DRV\)
The theory behind PSK shows that it is indeed far better than CW. This next week I have to dig this out for a presentation, I'll copy it here as well. The idea behind PSK and QRP in general is brains, no brawn. Simon Brown --- RSGB HF Convention October 2006: http://www.rsgb-hfc.org.uk/ -

Re: [Flexradio] [OT] RTTY/PSK31 Only 25 Watts?

2006-10-01 Thread Mike Naruta
Hmmm. Never need more than 40 watts on PSK. Does that also mean that we never need to run a KW on CW? Or is PSK that much better than CW?:) Mike - AA8K Tim Ellison wrote: > To reiterate Brian's comments, please do not operate PSK with any more > than 25-30 watts. One of the most annoyi