[Elecraft] K3 and Ameritron QSK-5 Connections and Settings

[Paul Christensen]

Chuck:

Keep this in mind.  The QSK-5's "KEY 2" line activates the PIN diode 
circuitry.  "KEY 2" activates the QSK-5's input and output relays.

> 2) If Key 2, do you have a jumper from AUX to Key 1?

Ideally, you want to jumper KEY 1 and KEY 2 together with a "Y" cable using 
steering diodes.  Then, the RELAY line from the QSK-5 connects to the 
Ameritron amp.  If you use AUX to activate KEY 1, that adds > 1 msec. of 
additional delay to system timing.  AUX is primarily used for TX INH 
handshaking between the amp and transceiver.

This PowerPoint presentation from N6MW is essential to ensure a proper 
interconnection between the QSK-5, transceiver, and amplifier:

http://72.52.250.47/images/QSK5.ppt

Paul, W9AC



----- Original Message ----- 
From: "Chuck - AE4CW" <AE4CW at att.net>
To: <elecraft at mailman.qth.net>
Sent: Friday, November 27, 2009 12:09 PM
Subject: [Elecraft] K3 and Ameritron QSK-5 Connections and Settings


>
> I've found several posts regarding this combination but would appreciate a
> little more information from those who are successfully using it:
>
> 1) Which connection are you using between the K3 Key Out and the QSK-5? 
> Key
> 1 or Key 2?
> 2) If Key 2, do you have a jumper from AUX to Key 1?
> 3) Any other connection configurations you are using or have tried?
> 4) Any connection configurations to avoid?
> 5) What CONFIG: TX DLY setting are you using (8 ms default)?
>
> For reference my amplifier is an AL-80B.
>
> Thanks for any feedback!
>
> Chuck, AE4CW
> -- 
> View this message in context: 
> http://n2.nabble.com/K3-and-Ameritron-QSK-5-Connections-and-Settings-tp4076653p4076653.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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