We only find data desired when we have to send in hourly filed reports that are csv files with all those commas. Its the only way FEMA can keep track on certain large movements of material, etc. Otherwise, voice is the way to go.
The only thing that could really help HF emergency or disaster relief communications is digital voice that was just 5 or 10 dB more robust. DV is good now as it makes the signal better copy. An S7 signal may be only Q4 but with DV it will be Q5. When you signal to noise ratio drops below 15-20 dB, DV won't help...but if its 15-20 dB or more, DV is the cat's meow. 73, Walt/K5YFW -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] Sent: Monday, June 26, 2006 8:38 AM To: [email protected] Subject: Re: [digitalradio] PSk as Emergency Comms ORIGINAL MESSAGE: At 09:32 PM 6/25/2006, John Bradley wrote: >Voice for emergency comms is even less effective as CW for emergency >comms, and fails under a lot less rigorous conditions. > >PSK, and the other digital modes can provide comms in conditions >where voice cannot work, and at a much higher speed. PLUS, at the >end, you end up with a printed message rather than some scrawled message pad. > >For those of us who have labored painfully copying voice emergency >traffic, how sweet it would be to use a digital mode, and end up >with a forwardable hard copy. > >Have u a race anytime, Bill > >John >VE5MU ------------ REPLY SEPARATOR ------------ I knew someone would reply with the "<fill in the blank> mode will get through when voice will not". And I don't disagree... some modes will indeed get through when voice will not, but that's not the issue. Nearly all emergency comms are relatively short range, up to perhaps 1000 miles or so. At that range, I stand by my original statement: 100 watts and a dipole on 80/40/20 meters using voice will do the job just fine and with a much greater throughput. For the types of emergency comms hams do, there is little need for a printed record, and the extra complication of data mode hardware at both ends just hinders things. And besides, if you have the time to set up computers, printers, etc, etc, it is no longer an emergency - now you are into simple health and welfare traffic. Very different from a real emergency. Bottom line: In an emergency, get on the mike and make your situation known. Help will be on the way. You'd lose that race, John. :-) Bill, W6WRT Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> See what's inside the new Yahoo! Groups email. http://us.click.yahoo.com/2pRQfA/bOaOAA/yQLSAA/ELTolB/TM --------------------------------------------------------------------~-> Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
