[Amps] hot keying the amp?

[Jim W7RY]

Take a look here on how to measure QSK circuits and your radio:

http://www.w0qe.com/amplifier_timing.html

You need to measure the radio and the amplifier response. What radio are you 
using?  Have you measured the relay speed in the amplifier?

Email me privately if you wish to discuss further.

73
Jim W7RY

http://www.ebay.com/sch/radioamplifiers/m.html?item=281051269896&ssPageName=STRK%3AMESELX%3AIT&rt=nc&_trksid=p2047675.l2562




-----Original Message----- 
From: Vasiliy - K3IT
Sent: Sunday, February 10, 2013 8:38 PM
To: amps at contesting.com
Subject: [Amps] hot keying the amp?

the new amp LK500ZB and I continue our bonding process :)

I've wired up the QSK circuit and recorded the CW signal on my scope.  I
can see a small bump after each dot and dash, like on the picture here
http://goo.gl/74HO3
Does it look like hot keying the amp?   There is also a very sharp fall off
- the dot is supposed to be 87ms but cut off early.  Is anybody familiar
with the QSK circuit on LZ500ZB and/or have words of wisdom? I wonder if
the QSK circuit has been played with and I can't operate it like this.
(I'm really knew to "QRO" stuff).

73

P.S. Thanks to all for answers regarding the LK500Z output on 10m.  I've
been testing and re-testing and now consistently get good power on all
bands.
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