All: It's not necessary to run big power with JT65. Loud signals will only make it difficult for the mode to extract the weaker signals out of the noise. It has the capability to decode signals well below the noise floor; much more so than the HF digital modes we're use to.
I think it's a good idea to use the same rule-of-thumb for JT65 as you would with any other mode; use enough power necessary to make the contact. Just keep in mind that JT65 can decode signals you can't even hear. Tony KT2Q ----- Original Message ----- From: "Dave Sparks" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, April 10, 2007 10:22 AM Subject: Re: [digitalradio] HB9TLK JT65 7076.0 > Hi Andy, > > I've been running at half power but I suspect > that most transceivers could safely transmit at > full power for a minute or less followed by at > least a full minute's rest, which is the nature > of the mode. > > 73 de AF6AS > Dave > > > -----Original Message----- > > From: "w6ids" <[EMAIL PROTECTED]> > Subj: Re: [digitalradio] HB9TLK JT65 7076.0 > Date: Tue Apr 10, 2007 6:34 am > Size: 1K > To: <[email protected]> > > > Are we under the same power constraints as PSK > or is full > power allowed (meaning w/o linear) for JT65? > > ----- Original Message ----- > From: KT2Q > To: [email protected] > Sent: Monday, April 09, 2007 10:30 PM > Subject: Re: [digitalradio] HB9TLK JT65 7076.0 > > Andy, > > Boy, that would be something. I was running 20 > watts / rotatable dipole on the tower at 75 > feet. > Cesco's antenna is a low G5RV with a barefoot > rig. > He usually runs 50 watts on digital. > > > > > Announce your digital presence via our DX > Cluster telnet://cluster.dynalias.org > > Our other groups: > > http://groups.yahoo.com/group/dxlist/ > http://groups.yahoo.com/group/themixwgroup > http://groups.yahoo.com/group/contesting > http://groups.yahoo.com/group/wnyar > http://groups.yahoo.com/group/Omnibus97 > > > Yahoo! Groups Links > > > --- message truncated --- > > >
