Yes Julian - you are right. There is no advantage in having a KPA3 for QRP working. In fact, there is a bit of a disadvantage as it takes up space in the case which you might be able to use for something else, like a battery or a VHF transverter.
Regarding the price, at $450 + VAT it is not particularly cheap compared to any other broadband 100W HF amplifier you might buy. Couple it with the KAT3 at $300 you are into the $750 territory and I am sure there are cheaper and more flexible alternatives. A good example being the K2 100W PA and ATU in an external case. If you really want a very clean signal, an external amplifier fed with a few watts and in class A would be a better bet. You could then use a device like an MRF151G with a 45V supply and if you wish to home brew check out the CCI website for amplifier kits. A 200W amplifier running off 28V or 48V will be very clean at 50W or so in class A. Mike -- View this message in context: http://www.nabble.com/KPA3-for-QRP-tp16091280p16094199.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
