Mark, I own a SPE 1K and I would not use the internal tuner to tune any antenna above 2.5:1 with it unless you back down on power output significantly. I have found that once you raise output power above 500-600W with the SPE 1K it sometimes goes into protection mode with poorer matching antennas that have higher SWR. I found this with my S33 Mosley on 40m which had a big dip on the lower end of 40m before I retuned the antenna by extending it for the lower band setting.
There are also issues with warranty for using an external turner with the SPE 1K that you should look into. Overall my opinion is that it is a really excellent amplifier but so far only have owner ten months. It is great for remote operations if you are going that route. Good luck! Keith AK6ZZ Sent from my iPhone please excuse typos > On Dec 9, 2013, at 5:19 AM, [email protected] wrote: > > Good Morning, > It's Mark Griffin KB3Z. I was looking at an SPE Expert amplifier and I see it > has an internal antenna tuner which can handle SWR's of up to 4:0. But, I was > wondering if I connected the output of my K3 to the input of the amplifier > and then the antenna to the output of the amplifier, If I used the K3 > internal antenna tuner to decrease the SWR to a reasonable level would this > work? I don't currently have the internal antenna tuner in the K3. It is > perhaps a bad question to ask, but I am currently using a Palstar AT2K as my > antenna tuner. Any help or advice would be greatly appreciated. Mark > Griffin, KB3Z > ______________________________________________________________ > 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 ______________________________________________________________ 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
