It is really up to you but a 100W VHF amplifier should not need more than 10W of drive, typically much less. A 300W will amplifier perhaps need more drive. Of course the output will be cleaner if under run, so a 25W amplifier running 10W ought to be cleaner than when running 25W.
You only really need 25W of drive if you are using a large triode and hoping for 1500W, indeed perhaps more like 50W would be appropriate. For a 300w solid state PA like the reccomended by me Tokyo Hi Power HL-350Vdx it makes no difference. It has 10W, 25W and 50W input settings. Mike Phil Hystad wrote: > > What is the better solution for adding 2 meter capability to the K3, the > new internal K144XV or the XV144 transverter. I see that the power output > of the K144XV is 10 watts and that the power output of the transverter is > about 20 to 25 watts. Let's assume I would want a 100 watt PA, does it > make a difference on whether I have 10 watts drive or 25 watts drive? > Since I have not looked at any such linear amplifier I am not sure what > the drive requirement would be. > > I have not exhaustively read all the documentation available on these two > but I was curious if there were any "stand out" reasons for choosing one > over the other. > > Thanks, > phil, K7PEH > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > -- View this message in context: http://n2.nabble.com/K3-2-meter-capability-internal-K144XV-or-XV144-transverter-tp4130176p4130949.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
