Date: Mon, 19 May 2008 08:13:09 -0700 (PDT) From: Chris Kantarjiev K6DBG <[EMAIL PROTECTED]>
> You can always drive a linear amp with a QRP signal, but under FCC > rules, producing more than 480 watts out with 15W in is prohibited for > a type-accepted amplifier (15 db gain). Of course! Too much blood in my caffeine stream. But if there were, say, a convenient attenuator pad that could be bypassed by a motivated amateur... IIRC, "easily modified" was in the older rules, but that seems to only apply to CB coverage now. > err, why not just build up another KPA-100 and leave it with the > KPA800? No reason, really, aside from cost (which might pale in comparison to the KPA800!) Yep. I suspect the KPA100 is really necessary, though, since it's got filtering approriate for that level of output power and I think there might be a problem with just amplifying the QRP level signal to real QRO, without adding the extra filtering. I suspect other know the details on this better than I. Mostly, I guess, I hope that any such amp will be as well integrated with the K2 as the K3. Note that the KPA800/1500 was first shown with the K2, and was closely integrated at that time. Rumor: I've heard that the amp worked really well mostly, but there was a problem that caused much failure of the expensive power devices. 73, doug _______________________________________________ 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
