[Elecraft] K1, KX1, K2 antenna tuner high-impedance feed capabilites

[Dave Andrus]

I'm interested in using portable end-fed halfwave antennas when I'm  
out camping.  I have a Norcal BLT tuner that is a absorptive Z-match  
type, suitable for this type of high-impedance tuning and loading.

I'm finishing my build of a K2 right now, just about to add an  
internal tuner to it, and I also plan to build a KX1 in the near  
future (and who knows, maybe a K1 as well?).  I'm wondering whether I  
should add the tuner in, or just carry my BLT around with me?

Since many of you are QRP buffs, and have possibly had occasion to use  
this type of antenna (and maybe even the BLT) in portable locations,  
could you tell me if the internal tuners in these rigs are capable of  
feeding this type of antenna successfully?  I don't just mean to ask  
whether an L-match or T-match type of tuner will handle a high  
impedance load, but also whether the best power transfer is happening,  
such as what the BLT will do?

Thanks in advance,

Dave K7DAA

http://www.k7daa.com