> During the NAQP RTTY, at one point I was calling a solid > stream of CQ's at 100 watts output on RTTY and not getting > any replies. I was watching the PA Temp, and it climbed up to > 65C and looked like it wanted to keep rising pretty quickly. > I think hi temp shutdown is at 84C. I backed off on my CQ's > and used the other radio for a while. I had the fan speed > locked on step 4. All of this was at 13.8VDC. With any kind > of heavy duty usage, I don't think cranking up the voltage is > a good idea. A better idea is to buy an AL-1500 or similar > low drive amp, which will give you 1500 watts out with 50 > watts of drive. NOW, we are talking "juice." ;)
This is interesting. I run 100 watts output on RTTY, CQing and working stations at a continual flow, and the fans hardly run at all. The PA temperature stays down. I wonder if there is something unique going on with your K3(s)? One user found a fan wire impeding the blades of one of his fans and even on CW, he had the same experience described above. Ed - W0YK ______________________________________________________________ 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
