[Elecraft] Antenna question - Balun

[Mike W]

On 21 Aug 2005 at 8:40, Robert Tellefsen wrote:

> Two things will make matching easier.  Get two
> baluns, 1:1 and 4:1.  Put them on the two
> antenna ports of the ATU

Looking at the two versions of the BL1 for 1:1 and 4:1
Can you not use a 2pco ( dpdt ) switch or relay to change between the two ?.

Commons to the two inner windings ( see BL1.pdf ).
 Short them for interconnect on the NO connections for 4:1
 Parallel them on the NC connections for 1:1.