[Elecraft] K1 for 17/15 question

Fri Apr 30 19:38:10 2004

That would be very nice.

dt
.

--- Sandy W5TVW <[email protected]> wrote:
> There's a rumor that Elecraft will offer a 160 meter option in the two band
> version
> sometime in the near future?
> I'm waiting for this one!  That will make my K1 convertable
> for 160/80 when winter sets in again!
> 73,
> Sandy W5TVW
> ----- Original Message ----- 
> From: "Jessie Oberreuter" <[email protected]>
> To: "Mike Morrow" <[email protected]>
> Cc: "David Toepfer" <[email protected]>; <[email protected]>
> Sent: Thursday, April 29, 2004 3:48 PM
> Subject: Re: [Elecraft] K1 for 17/15 question
> 
> 
> | 
> | On Thu, 29 Apr 2004, Mike Morrow wrote:
> | 
> | > >The 4 band board is really two sets of two bands where each band set
> | > >always has the cap for the the higher of the two bands permanently
> | > >switched in, and the lower band cap(s) added when the lower band is
> | > >selected (see schematic on-line).  With a little fiddling, you can come
> up
> | > >with a wide variety of configurations.
> | >
> | > That's true only if you ignore the changes needed to the transmitter
> output
> | > filter networks to accomodate any other choices.
> | 
> |      Sorry, yes, in addition to the four pre-mix and RF filters, you will
> | need to make sure the output filters accomodate your bands as well, and
> | this is where the number of options dwindles.  We should, however, be able
> | to add 15/17/20/30 to the list of combinations that the board can natively
> | support, eg remove C13,C14 and CN,CP, replace C11,C12 and CM,CL with them,
> | replace C10 with a 2pf cap, and then re-work the 40/30 low-pass filter.
> |      Folks who can get crystals for 10/12 experiements could also come up
> | with some useful combinations.  Too bad we can't run cw on 60m :).
> | 
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> | 
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