[Elecraft] K2 with MacOS Classic

[Bekir Kemal Ataman]

>The diodes are doing two different things. Wire them up! It works great
>here.

Will do.

>In this case, you are using the computer RS-232 to key the rig, so you'll
>definitely be building a custom cable - TxD and RxD to the K2, DTR to your
>keying circuit (btw, this can fit into the DB9 shell), and NC all the K2
>specific lines.

I am afraid vintage Macs do not have an RS232 port ;-)

>The two diodes on the K2 end are to allow ADET operation (a keyer and a
>straightkey/computer simultaneously connected). If the DTR line pulls the
>pair of diodes low, both DIT and DAH go low together and the K2 assumes a
>straight key. If they go low at different times, the K2 assumes iambic
>keying and acts appropriately.
>
>So ops (up at twice the speed I can run) can fool ADET and need to turn it
>off. They don't need the diodes but must switch from paddles to SK/Computer
>with the menu.
>
>Other ops only ever do it one way or the other - and switch off ADET too.

Hmmm. I'll have to read MultiMode manual further to figure out which method
it uses, straight key or iambic... I have got a feeling I'll have to
experiment with this setting a little. I hope I do not burn anything on the
way.

Thanks for the input.

73!
BKA (TA2RX)

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Bekir Kemal Ataman
ArchiMac BBS Sysop & Webmaster <http://www.archimac.org/>