Newer LDMOS amps don’t need much input power to develop full output. I am building a 600W amp that needs about 3watts input. My KX3 will do just fine. In fact I had an input attenuator made that will allow full power from the KX3 drive the amp at full power. I also have a K3/10.
Mike AI4NS On Tue, May 12, 2020 at 07:44 W0FK <llader...@earthlink.net> wrote: > The KX3 allows you to add roofing filters (KXFL3 option), wherease kx2 does > not. > > “ The KXFL3 is actually 4 different filters that are shared between Phone > and CW modes. Containing 2 filters for each mode, the filters switch > points > are: > CW Mode: 500 hz and 1500 hz > Phone mode: 1800 hz and your choice of 2400 or 2900, menu configurable” > > If the kx3 is your main radio, and your focus is CW, having the ability to > add narrow passband filtering is essential. > > Are you planning to run more power than 10-15 watts? If so, adding > capabilities up to 100 watts via an external amp is pretty simple. If > you’re > going to be adding more power, and don’t plan on using the portability of > the kx3, consider a used K3/100 which has a lot more flexibility for narrow > roofing filters, 100 amps built in and an easier path to adding a kw amp. > > 73, Lou, W0FK > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
