[Elecraft] fixed audio for K2

[Pauli Nunez EA3BLQ]

Hi Henrik and all,

As Don, W3FPR, says in his message, "The unused J5 slot on the RF board has
exactly the same PD1 and PD2 signals
as the ones used for the KAF2/KDSP2 on the control board".
Anyway if you have the KAF2 or KDSP2 installed you still can get a fixed
audio for the K2 by taping P1 and P2, on either the KAF2 or KDSP2 board, and
thus take advantage of their filtering features. I suggest you pay a look to
my website at www.qsl.net/ea3blq/ Menu -> English -> Digital Interface,
where you'll find information on how I have dealt with this need, or Menu ->
Downloads and download my latest PDF file on the matter.

Best 73

Pauli, EA3BLQ
K2/100 # 1044
ea3blq@menta.net
ea3blq@qsl.net
URL: www.qsl.net/ea3blq


On Tuesday, April 27, 2004 7:17 PM  "Henrik Tuxen", DK1HTX
<Henrik.Wagner.Tuxen@gmx.net> wrote:


>Sorry this landed outside the thread - I will try again.
>
>I have been reading this thread, and I'm in the same dilemma as Jeff
>(AD9T).
>I think that a better solution is to use the J1 and J2 connectors on the
>K2 Control Board as basis, because there signals PD1 and PD2 are present
>(output from the Product Detector), and also 12V and Ground. One can
>then create a small PCB with a LM380 and a couple of discrete
>components, including a trimpot to set the level and mount it all using
>the J1 connector.
>This only works if one does not have the KAF2 installed, because then
>the J1 and J2 connectors are taken.
>I will be trying out this solution in the near future and will post the
>results on my homepage www.qsl.net/dk1htx when I'm done.