Well even a J-38 or a bug will work. I suppose since there is no physical
internal mechanical key, all keyers are therefore external. This reference
is to the method described in the Centurion manual for radios that do not
have QSK capability. I didn't invent the wheel, I just greased it to make
it turn easier.
73
Bob, K4TAX
----- Original Message -----
From: "Mike Bryce" <prosolar@sssnet.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Friday, August 09, 2013 9:26 AM
Subject: Re: [TenTec] Argo V amp keying
bob,
isn't that assuming that you're using an external keyer?
I designed a small circuit board that will go inside the argo v and will
provide powermosfet output.
the input is optical coupled to the rig.
the pcb about the size of a quarter.
I'll look around the shack and see if I have a few left.
Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||||||o
A man with one clock knows what time it is. A man with two clocks is never
sure.
On Aug 8, 2013, at 8:12 AM, Bob McGraw - K4TAX wrote:
Just remember, making changes of this magnitude might put one in the
position of a "very underpaid design Engineer". In other words, "if one
THINKS they know what they are doing, best STOP and ask someone that has
done it before successfully".
I agree with Rick, adding something like this might be fatal to the
radio.
Now lets look at the issue a bit differently. Why not use your keyer
with a suitable driver to key the amp and to key the radio. It works
this way for situations where one does not have QSK keying ability when
using the Centurion amp and some other radio that does not have QSK
capability. The key is connected to the amp {not the radio} and the
keying circuit in the amp then keys the radio upon key closure. The AUX
connector on the back of the ARGO V does have access to the PTT for that
reason.
73
Bob, K4TAX
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