--- Kris Kirby <[EMAIL PROTECTED]> wrote: > On Thu, 14 Dec 2006, Mike Perryman wrote: > > I have no idea about a tube version... but I have > a Micor 75W solid > > state PA for 800 if you are interested lemme > know.. > > Not really. What I'm thinking is that a tube-type PA > would have less > noise generated as a result of amplification which > would mean less heat > expended in the duplexers and harmonic filters. > > -- > Kris Kirby > <[EMAIL PROTECTED]> > Even if a solid state TX at 100 watts only had the spurious and harmonics down 20dB, that would only be 1 watt of additional heat generated.
Most transmitters have such things reduced by at least 60dB, which would make the additional heat generated at something less than a milliwatt, hardly worth mentioning. The heat comes from the loss of the device. A 1 dB loss will introduce about 20 watts of heat from a 100 watt TX. Joe ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com
