AL,
I'm curious as to what those reasons might be. I'll ask Jack.
Relying on ALC or simply backing off drive is a very inefficient way of
consuming d.c. power.
I thought it was rather ingenious how they implemented the "power switch" on
the analog version.
Actually I think Elecraft had that option in the K2 as well, but I can't
remember for certain.
Most people plan their EMCOMM from the aspect of being on the rescuing team.
I planned mine from the aspect of being the one needing rescued.
You see things a lot different from that side of the fence.
The rescuing team assumes they will be the first responders with more help
coming behind them.
The victim has no idea how long it will be until he is rescued, and needs to
plan his station for as little power consumption as possible.
Here is one suggestion:
The older Triton radios had a great feature; it could easily be converted to
a true QRP rig.
...They had a short piece of RG-142 running from the output of the driver
stage, to the input of the final 50 or 100w stage - depending on which
Triton you had. This cable had an RCA Phono plug on it.
...The output of the final stage had a similar cable running to the Low Pass
Filter board.
...It was a simple task to unplug the two cables and plug the driver's cable
directly into the LPF board. You then had a QRP transceiver with 5 to 10w
of output power. But power consumption was still higher than need be.
...Since the final stage was still connected to the +13v line and it would
draw a little current as well, even though it was not in use. Simple
solution: Insert an inline fuse in the thick red cable running to the
finals.
So when you needed to run QRP off of batteries for an extended period of
time, simply remove the cabinet, plug the driver into the LPF board and
remove the fuse to the finals. Voila! You have an efficient QRP rig.
BTW, this works on the Scout as well, converting it to an Argo with 5w out.
73 - Rick, DJ0IP
(Nr. Frankfurt am Main)
-----Original Message-----
From: Al Gulseth [mailto:wb5jnc@centurytel.net]
Sent: Thursday, October 09, 2014 5:07 AM
To: tentec@contesting.com
Cc: Rick - DJ0IP / NJ0IP
Subject: Re: [TenTec] Another retro question - Argosy-Century
That only applies to the earlier s/n (I think just analog?) units. The
later/digital version used ALC and kept the 50W PA in line at all power
levels. I understand that TT had their reasons for the change but I still
prefer the PA bypass system, especially as Rick noted for battery operation.
73, Al
On Wed October 8 2014 3:14:37 pm Rick - DJ0IP / NJ0IP wrote:
> One feature that impressed me with the Argosy was the back panel
> switch to switch between 50w and 5w.
> When switched to 5w, the PA was completely turned off, which means it
> draws current much like any other 5w radio would.
>
> This is much better than simply turning the power down on a higher
> power rig.
> This really increases batter life.
>
> 73 - Rick, DJ0IP
> (Nr. Frankfurt am Main)
>
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Al
> Soto
> Sent: Monday, October 06, 2014 7:29 PM
> To: tentec@contesting.com
> Subject: [TenTec] Another retro question - Argosy-Century
>
> I liked reading all the opinions about the Corsair revisited (modern
> version of corsair).
>
> I don't have a long history with ten tec and was not a ham in the 80s,
> but now own two ten tec rigs and am thinking about another. I've
> learned a lot just being on this reflector and am glad to be part of this
community.
>
> I see the Century 21 and Argosy (analog versions) as such different
> rigs made during the same years. For those that owned or used them
> (for cw), how would you compare them?
>
> 73, Al kj3q
>
>
>
>
>
>
>
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