[Elecraft] Ultimatic keying in KX1/K1?

Don Wilhelm w3fpr at earthlink.net
Mon May 7 09:49:59 EDT 2007


The K1EL keyers also support Ultimatic mode.  They are small inexpensive 
PC boards.  I use the K12 to provide Ultimatic mode, much easier for me.

I too would like to see the KX1 and K1 rigs provide Ultimatic keying. 
The K2 is not a problem for me - the external keyer works fine, but it 
would be nice to have Ultimatic 'inside' the K2 and K3 too.

73,
Don W3FPR

Paul wrote:
> Mike,
> It's my understanding that the MODE is a function of the chip being 
> used. At this time I know of three Ultimatic units. The cube keyer that 
> goes with that mini Palm paddle key (the newer cube), the offerings from 
> Jackson Harbor - I think the PK4 chip (that's used the new Palm), and 
> there's a keyer for about $17 that is constantly for sale on that 
> Auction site (I think it comes up when searching on QRP) Unfortunately, 
> I don't believe the older PK3 chip is plug to plug compatible. That is, 
> you can't take a keyer based on the PK3 Chip and plug in the PK4.
> 
> I think the circuit board for the basic keyer (not a lot of memories) is 
> pretty small. So you might be able to stick in inside the rig and just 
> wire it to the key jack - or you can install it as a small box at the 
> key end - sort of in-line with your key.


More information about the Elecraft mailing list